Saint Lucia Meteorological Services

6:00 pm Weather Report

Date: 22^nd August, 2025

Forecaster: Vigil Saltibus

Present weather at Hewanorra Airport is partly cloudy.

Present weather at GFL Charles Airport is partly cloudy.

Present temperature at Hewanorra Airport is 30°C or 86°F.

Today’s maximum temperature at Hewanorra Airport was 32°C or 90°F.
Relative humidity at Hewanorra Airport is 74%.

Wind at Hewanorra Airport is blowing from the east-southeast at 13 mph or 20 km/h.

Rainfall in the 24-hour period that ended at 2:00 pm today:
At Hewanorra Airport: 0.9 mm.                      At GFL Charles Airport: Trace.

Total rainfall for the month of August thus far:
At Hewanorra Airport: 57.3 mm.                    At GFL Charles Airport: 37.4 mm.

Sunrise tomorrow: 5:51 am                       Sunset today: 6:21 pm

FORECAST FOR SAINT LUCIA VALID FOR THE NEXT 24 HOURS
Winds will be blowing from between the southeast and northeast near 14 mph or 22 km/h, becoming lighter and variable or calm at times.
Weather: Fair skies, becoming cloudy at times with a few scattered showers and         a chance of isolated thunderstorms.

MARINE FORECAST FOR SEAS IN A 25 MILE OR 40 KM RADIUS FROM SAINT LUCIA
Tides for Castries Harbour: Low at 08:42 pm…High at 3:29 am…Low at 09:53 am Tides for Vieux Fort Bay:   Low at 10:09 pm…High at 4:36 am…Low at 11:20 am Seas: Slight to moderate with waves 3 to 6 feet or 0.9 to 1.8 metres.

FORECAST FOR THE LESSER ANTILLES
Partly cloudy becoming cloudy at times, with widely scattered showers and isolated thunderstorms, mainly over the northern half of the region.

TROPICAL WEATHER OUTLOOK

A tropical wave will cause occasionally cloudy skies with scattered showers and isolated thunderstorms over the Lesser Antilles, during the next 24 hours. There is a high chance for an area of low pressure associated with this wave to develop into a tropical depression this weekend, as it passes north of the northern Leeward Islands.

Another tropical wave located over the central Tropical Atlantic, is moving westward near 21 mph or 33 km/h. This wave has a medium chance for development over the next couple of days.

A third tropical wave located over the far eastern Tropical Atlantic, is moving westward near 6 mph or 9 km/h.

Date: 22nd August, 2025
Forecaster: Maclean Jn Baptiste

Present weather at Hewanorra Airport is fair and hazy.
Present weather at GFL Charles Airport is partly cloudy.
Present temperature at Hewanorra Airport is 31°C or 88°F.
Last night’s minimum temperature at Hewanorra Airport was 26°C or 79°F.
Relative humidity at Hewanorra Airport is 72%.
Wind at Hewanorra Airport is blowing from the southeast at 13 mph or 20 km/h.
Rainfall in the 24-hour period that ended at 8:00 am today:
At Hewanorra Airport: 0.9 mm. At GFL Charles Airport: trace.
Total rainfall for the month of August thus far:
At Hewanorra Airport: 57.3 mm. At GFL Charles Airport: 37.4 mm.

Sunset today: 6:21 pm. Sunrise tomorrow: 5:51 am.

FORECAST FOR SAINT LUCIA VALID FOR THE NEXT 24 HOURS
Winds will be blowing from the southeast near 14 mph or 22 km/h, becoming lighter and variable or calm at times.
Weather: Fair skies, becoming cloudy at times with a few scattered showers and a chance of isolated thunderstorms.

MARINE FORECAST FOR SEAS IN A 25 MILE OR 40 KM RADIUS FROM SAINT LUCIA
Tides for Castries Harbour: High at 3:47 pm…Low at 08:42 pm.
Tides for Vieux Fort Bay: High at 4:54 pm…Low at 10:09 pm.
Seas: Slight to moderate with waves 3 to 6 feet or 0.9 to 1.8 metres.

FORECAST FOR THE LESSER ANTILLES
Partly cloudy becoming cloudy at times, with widely scattered showers and isolated thunderstorms, mainly over the northern half of the region.

TROPICAL WEATHER OUTLOOK
A tropical wave will cause occasionally cloudy skies with scattered showers and isolated thunderstorms over the Lesser Antilles, during the next 24 hours. There is a high chance for an area of low pressure associated with this wave to develop into a tropical depression this weekend, as it passes north of the northern Leeward Islands.
Another tropical wave located over the central Tropical Atlantic, is moving westward near 21 mph or 33 km/h. This wave has a medium chance for development over the next couple of days.
A third tropical wave located over the far eastern Tropical Atlantic, is moving westward near 6 mph or 9 km/h.

Date: 22^nd August, 2025

Forecaster: Webster Gajadhar

Present weather at Hewanorra Airport is partly cloudy with showers nearby.

Present temperature at Hewanorra Airport is 28°C or 82°F.

Last night’s minimum temperature at Hewanorra Airport was 26°C or 79°F.
Relative humidity at Hewanorra Airport is 80%.

Wind at Hewanorra Airport is blowing from the southeast at 9 mph or 15 km/h.

Rainfall in the 24-hour period that ended at 2:00 am today:
At Hewanorra Airport: 0.5 mm.

Total rainfall for the month of August thus far:
At Hewanorra Airport: 56.4 mm.

Sunset today: 6:21 pm.         Sunrise tomorrow: 5:51 am.

FORECAST FOR SAINT LUCIA VALID FOR THE NEXT 24 HOURS
Winds will be blowing from the southeast near 14 mph or 22 km/h, becoming lighter and variable or calm at times.
Weather: Partly cloudy becoming cloudy at times, with some scattered showers and a chance of isolated thunderstorms.

MARINE FORECAST FOR SEAS IN A 25 MILE OR 40 KM RADIUS FROM SAINT LUCIA
Tides for Castries Harbour: Low at 9:22 am…High at 3:47 pm.
Tides for Vieux Fort Bay:  Low at 10:49 am…High at 4:54 pm.
Seas: Slight to moderate with waves 3 to 5 feet or 0.9 to 1.5 metres.

FORECAST FOR THE LESSER ANTILLES
Partly cloudy becoming cloudy at times, with widely scattered showers and isolated thunderstorms.

TROPICAL WEATHER OUTLOOK

A tropical wave will cause occasionally cloudy skies with scattered showers and isolated thunderstorms over the Lesser Antilles, during the next 24 hours. There is a high chance for an area of low pressure associated with this wave to develop into a tropical depression this weekend, as it passes north of the northern Leeward Islands.

Another tropical wave located over the central Tropical Atlantic, is moving westward near 17 mph or 28 km/h. This wave has a medium chance for development over the next couple of days.

A third tropical wave has emerged off the coast of West Africa and is moving westward near 6 mph or 9 km/h.

6:00 pm Weather Report

Date: 21^st August, 2025

Forecaster: Vigil Saltibus

Present weather at Hewanorra Airport is partly cloudy.

Present weather at GFL Charles Airport is partly cloudy.

Present temperature at Hewanorra Airport is 29°C or 84°F.

Today’s maximum temperature at Hewanorra Airport was 32°C or 90°F.
Relative humidity at Hewanorra Airport is 74%.

Wind at Hewanorra Airport is blowing from the east at 13 mph or 20 km/h.

Rainfall in the 24-hour period that ended at 2:00 pm today:
At Hewanorra Airport: 0.5 mm              At GFL Charles Airport: nil

Total rainfall for the month of August thus far:
At Hewanorra Airport: 56.4 mm           At GFL Charles Airport: 37.4 mm

Sunrise tomorrow: 5:51 am        Sunset tomorrow: 6:22 pm

FORECAST FOR SAINT LUCIA VALID FOR THE NEXT 24 HOURS
Winds will be blowing from between the east-northeast and east-southeast near 20 mph or 31 km/h.
Weather: Partly cloudy and hazy, becoming cloudy at times with some scattered         showers and a chance of isolated thunderstorms.

MARINE FORECAST FOR SEAS IN A 25 MILE OR 40 KM RADIUS FROM SAINT LUCIA
Tides for Castries Harbour: Low at 7:50 pm…High at 2:45 am…Low at 09:22 am
Tides for Vieux Fort Bay:   Low at 9:17 pm…High at 3:52 am…Low at 10:49 am
Seas: Slight to moderate with waves 3 to 5 feet or 0.9 to 1.5 metres.

FORECAST FOR THE LESSER ANTILLES
Partly cloudy and hazy, becoming cloudy at times with widely scattered showers and isolated thunderstorms.

TROPICAL WEATHER OUTLOOK

An approaching tropical wave will bring cloudy, moist, and unstable conditions, with scattered showers and isolated thunderstorms over the region during the next 24 hours.

This wave is currently east of the Lesser Antilles, moving westward at about 17 mph or 28 km/h. There is a high potential for it to develop into a short-lived tropical depression this weekend as it nears or passes north of the northern Leeward Islands.

Additionally, another tropical wave over the eastern Tropical Atlantic is moving west at 13 mph or 20 km/h, with medium chance for development over the next couple of days.

12:00 noon Weather Report

Date: 21^st August, 2025

Forecaster: Vigil Saltibus

Present weather at Hewanorra Airport is partly cloudy.

Present weather at GFL Charles Airport is partly cloudy with showers nearby.

Present temperature at Hewanorra Airport is 31°C or 90°F.

Last night’s minimum temperature at Hewanorra Airport was 26°C or 79°F.
Relative humidity at Hewanorra Airport is 71%.

Wind at Hewanorra Airport is blowing from the east at 18 mph or 30 km/h.

Rainfall in the 24-hour period that ended at 8:00 am today:
At Hewanorra Airport: 0.8 mm              At GFL Charles Airport: nil

Total rainfall for the month of August thus far:
At Hewanorra Airport: 56.4 mm           At GFL Charles Airport: 37.4 mm

Sunset today: 6:22 pm         Sunrise tomorrow: 5:51 am

FORECAST FOR SAINT LUCIA VALID FOR THE NEXT 24 HOURS
Winds will be blowing from between the east-northeast and east near 20 mph or 31 km/h.
Weather: Partly cloudy and hazy, becoming cloudy at times with some scattered         showers and a chance of isolated thunderstorms.

MARINE FORECAST FOR SEAS IN A 25 MILE OR 40 KM RADIUS FROM SAINT LUCIA
Tides for Castries Harbour: High at 3:17 pm…Low at 7:50 pm
Tides for Vieux Fort Bay:   High at 4:24 pm…Low at 9:17 pm
Seas: Slight to moderate with waves 3 to 5 feet or 0.9 to 1.5 metres.

FORECAST FOR THE LESSER ANTILLES
Partly cloudy and hazy, becoming cloudy at times with widely scattered showers and isolated thunderstorms.

TROPICAL WEATHER OUTLOOK

An approaching tropical wave will bring cloudy, moist, and unstable conditions, with scattered showers and isolated thunderstorms over the region during the next 24 hours.

This wave is currently east of the Lesser Antilles, moving westward at about 17 mph or 28 km/h. There is a high potential for it to develop into a short-lived tropical depression this weekend as it nears or passes north of the northern Leeward Islands.

Additionally, another tropical wave over the eastern Tropical Atlantic is moving west at 12 mph or 19 km/h, with medium chance for development over the next couple of days.

Date: 21^st August, 2025

Forecaster: Webster Gajadhar

Present weather at Hewanorra Airport is partly cloudy and hazy.

Present temperature at Hewanorra Airport is 27°C or 81°F.

Last night’s minimum temperature at Hewanorra Airport was 27°C or 81°F.
Relative humidity at Hewanorra Airport is 81%.

Wind at Hewanorra Airport is blowing from the east at 18 mph or 30 km/h.

Rainfall in the 24-hour period that ended at 2:00 am today:
At Hewanorra Airport: 2.3 mm.

Total rainfall for the month of August thus far:
At Hewanorra Airport: 55.9 mm.

Sunset today: 6:22 pm.         Sunrise tomorrow: 5:51 am.

FORECAST FOR SAINT LUCIA VALID FOR THE NEXT 24 HOURS
Winds will be blowing from between the east-northeast and east near 20 mph or 31 km/h.
Weather: Partly cloudy and hazy, becoming cloudy at times with some scattered showers and a chance of isolated thunderstorms.

MARINE FORECAST FOR SEAS IN A 25 MILE OR 40 KM RADIUS FROM SAINT LUCIA
Tides for Castries Harbour: Low at 8:47 am…High at 3:17 pm.
Tides for Vieux Fort Bay:  Low at 10:14 am…High at 4:24 pm.
Seas: Moderate with waves 4 to 6 feet or 1.2 to 1.8 metres.

FORECAST FOR THE LESSER ANTILLES
Partly cloudy and hazy, becoming cloudy at times with widely scattered showers and isolated thunderstorms.

TROPICAL WEATHER OUTLOOK

A plume of Saharan dust haze will impact visibility and air quality across the Lesser Antilles, during the next 24 hours. Moist and unstable conditions ahead of an approaching tropical wave, will cause occasional cloudiness, showers and isolated thunderstorms over the region, during the forecast period.

A tropical wave located over the western tropical Atlantic is moving westward near 17 mph or 28 km/h. Further development of this wave is expected during the next few days, and a tropical depression could form this weekend while it moves near or to the north of the northern Leeward Islands. This system is expected to begin affecting the region from late tonight.

Another tropical wave located over the eastern Tropical Atlantic, is moving westward near 12 mph or 19 km/h. Development of this wave is possible over the next couple of days.

Date: 20^th August, 2025

Forecaster: Webster Gajadhar

Present weather at Hewanorra Airport is partly cloudy and hazy.

Present weather at GFL Charles Airport is fair with light haze.

Present temperature at Hewanorra Airport is 29°C or 84°F.

Today’s maximum temperature at Hewanorra Airport was 32°C or 90°F.
Relative humidity at Hewanorra Airport is 70%.

Wind at Hewanorra Airport is blowing from the east at 24 mph or 39 km/h.

Rainfall in the 24-hour period that ended at 2:00 pm today:
At Hewanorra Airport: 2.3 mm.       At GFL Charles Airport: 4.7 mm.

Total rainfall for the month of August thus far:
At Hewanorra Airport: 55.9 mm.      At GFL Charles Airport: 37.4 mm.

Sunrise tomorrow: 5:51 am.          Sunset tomorrow: 6:22 pm.

FORECAST FOR SAINT LUCIA VALID FOR THE NEXT 24 HOURS
Winds will be blowing from between the east and east-northeast near 20 mph or 31 km/h.
Weather: Fair to partly cloudy and hazy, with a few brief showers.

MARINE FORECAST FOR SEAS IN A 25 MILE OR 40 KM RADIUS FROM SAINT LUCIA
Tides for Castries Harbour: Low at 6:53 pm…High at 1:56 am.
Tides for Vieux Fort Bay:   Low at 8:20 pm…High at 3:03 am.
Seas: Slight to moderate with waves 3 to 5 feet or 0.9 to 1.5 metres.

FORECAST FOR THE LESSER ANTILLES
Fair to partly cloudy and hazy, with a few brief showers.

TROPICAL WEATHER OUTLOOK

A plume of Saharan dust haze will impact visibility and air quality across the Lesser Antilles, during the next 24 hours. Low-level clouds moving with the wind, will cause a few brief showers over the region, during the forecast period.

A tropical wave located over the central tropical Atlantic is moving westward near 17 mph or 28 km/h. Gradual development of this wave is expected during the next few days, and a tropical depression could form by this weekend while it moves near or to the north of the northern Leeward Islands. This system is expected to begin affecting the region from late Thursday.

Another tropical wave located over the eastern Tropical Atlantic, is also moving westward near 17 mph or 28 km/h. Development of this wave is possible over the next couple of days.

12:00 noon Weather Report
Date: 20^th August, 2025
Forecaster: Lemuel O’Shaughnessy

Present weather at Hewanorra Airport is fair with light haze.
Present weather at GFL Charles Airport is fair with light haze.
Present temperature at Hewanorra Airport is 31°C or 88°F.
Last night’s minimum temperature at Hewanorra Airport was 27°C or 81°F.
Relative humidity at Hewanorra Airport is 67%.
Wind at Hewanorra Airport is blowing from the east at 20 mph or 31 km/h.

Rainfall in the 24-hour period that ended at 8:00 am today:
At Hewanorra Airport: 2.0 mm          At H GFL Charles Airport: 4.7 mm

Total rainfall for the month of August thus far:
At Hewanorra Airport: 55.6 mm    At GFL Charles Airport: 37.4 mm

Sunset today: 6:22 pm      Sunrise tomorrow: 5:51 am              

FORECAST FOR SAINT LUCIA VALID FOR THE NEXT 24 HOURS
Winds will be blowing from between the east and east-northeast near 20 mph or 31 km/h.
Weather: Fair to partly cloudy and hazy with a few brief showers.

MARINE FORECAST FOR SEAS IN A 25 MILE OR 40 KM RADIUS FROM SAINT LUCIA
Tides for Castries Harbour: High at 2:44 pm… Low at 6:53 pm.    
Tides for Vieux Fort Bay:   High at 3:51 pm… Low at 8:20 pm. 
Seas: Slight to moderate with waves 2 to 5 feet or 0.6 to 1.5 metres.

FORECAST FOR THE LESSER ANTILLES
Fair to partly cloudy and hazy with a few showers.

TROPICAL WEATHER OUTLOOK

The Atlantic High-Pressure System will be the dominant weather feature across the region. Low-level clouds moving with the wind, will cause a few showers over the region, during the next 24 hours

A tropical wave located over the central tropical Atlantic is moving westward near 17 mph or 28 km/h. Gradual development of this wave is expected during the next few days, and a tropical depression could form toward the end of the week or this weekend. This system is expected to begin affecting the region from late Thursday.

Another tropical wave located over the far eastern Tropical Atlantic, is moving westward near 15 mph or 24 km/h. Development of this wave is also possible over the next couple of days.

6:00 am Weather Report

Date: 20^th August, 2025

Forecaster: Vigil Saltibus

Present weather at Hewanorra Airport is partly cloudy with showers nearby.

Present temperature at Hewanorra Airport is 28°C or 82°F.

Last night’s minimum temperature at Hewanorra Airport was 28°C or 82°F.
Relative humidity at Hewanorra Airport is 80%.

Wind at Hewanorra Airport is blowing from the east-northeast at 20 mph or 31 km/h.

Rainfall in the 24-hour period that ended at 8:00 pm last night:
At Hewanorra Airport: nil

Total rainfall for the month of August thus far:
At Hewanorra Airport: 53.6 mm

Sunset today: 6:22 pm      Sunrise tomorrow: 5:51 am              

FORECAST FOR SAINT LUCIA VALID FOR THE NEXT 24 HOURS
Winds will be blowing from between the east and east-northeast near 18 mph or 30 km/h.
Weather: Fair to partly cloudy and hazy with a few  light to moderate showers.

MARINE FORECAST FOR SEAS IN A 25 MILE OR 40 KM RADIUS FROM SAINT LUCIA
Tides for Castries Harbour: Low at 8:06 am…High at 2:44 pm.    
Tides for Vieux Fort Bay:   Low at 9:33 am…High at 3:51 pm. 
Seas: Moderate with waves 4 to 6 feet or 1.2 to 1.8 metres.

FORECAST FOR THE LESSER ANTILLES
Fair to partly cloudy and hazy with a few showers.

TROPICAL WEATHER OUTLOOK

The Atlantic High-Pressure System will become the dominant weather feature across the region. Low-level clouds moving with the wind flow, will cause a few showers over the region, during the next 24 hours

A large tropical wave in the central Atlantic is moving west at 17 mph or 28 km/h. Gradual development of this wave is expected during the next few days, and a tropical depression could form toward the end of the week or this weekend. This system should approach the vicinity of the Leeward Islands on Friday.

Another tropical wave is located over the far eastern Tropical Atlantic, continues to produce a concentrated area of showers and thunderstorms. Development of this wave is also possible over the next couple of days, as the system moves westward at around 12 mph or 19 km/h.

Date: 19th August, 2025
Forecaster: Maclean Jn Baptiste

Present weather at Hewanorra Airport is fair.
Present weather at GFL Charles Airport is cloudy with showers nearby.
Present temperature at Hewanorra Airport is 30°C or 86°F.
Today’s maximum temperature at Hewanorra Airport was 32°C or 90°F.
Relative humidity at Hewanorra Airport is 79%.
Wind at Hewanorra Airport is blowing from the east at 14 mph or 22 km/h.
Rainfall in the 24-hour period that ended at 2:00 pm today:
At Hewanorra Airport: nil. At GFL Charles Airport: trace.
Total rainfall for the month of August thus far:
At Hewanorra Airport: 53.6 mm. At GFL Charles Airport: 32.7 mm.

Sunrise tomorrow: 5:51 am. Sunset tomorrow: 6:22 pm.

FORECAST FOR SAINT LUCIA VALID FOR THE NEXT 24 HOURS
Winds will be blowing from the east near 17 mph or 28 km/h.
Weather: Fair skies, occasionally becoming cloudy with brief scattered showers and a chance of isolated thunderstorms tonight. Fair to partly cloudy and hazy, with a few isolated showers tomorrow.

MARINE FORECAST FOR SEAS IN A 25 MILE OR 40 KM RADIUS FROM SAINT LUCIA
Tides for Castries Harbour: High at 12:58 am…Low at 8:06 am.
Tides for Vieux Fort Bay: Low at 07:14 pm…High at 2:05 am.
Seas: Slight to moderate with waves 3 to 5 feet or 0.9 to 1.5 metres.

FORECAST FOR THE LESSER ANTILLES
Fair skies, occasionally becoming cloudy with widely scattered showers and a chance of isolated thunderstorms.

TROPICAL WEATHER OUTLOOK
A weak tropical wave will cause occasionally cloudy skies, with some widely scattered showers and possibly isolated thunderstorms over the Lesser Antilles, during the forecast period.
Another tropical wave located over the central Tropical Atlantic, is moving westward near 20 mph or 31 km/h. Gradual development of this wave is expected during the next few days, and a tropical depression could form toward the end of the week or this weekend. This system should approach the vicinity of the Leeward Islands on Friday.
A third tropical wave located over the far eastern Tropical Atlantic, continues to produce a concentrated area of showers and thunderstorms. Development of this wave is possible over the next couple of days, as the system moves westward at around 15 mph or 24 km/h.