World Resorts Saint Lucia Castries Weather

Castries Sea Temperature in August

Average sea water temperature in August:
+83.9°F
Minimum sea water temperature in August: 85.8°F
Maximum sea water temperature in August: 81.7°F

Daily sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 84.5°F. The highest and lowest sea temperatures during the month were 85.1°F and 83.8°F.

Monthly sea water temperature in Castries, °F

Which Saint Lucia resorts have warmest sea in August?

Place name August 2025 August 2024
Vieux Fort 84.7°F 85.5°F
Castries 84.5°F 85.3°F

Best time for vacation in Castries

Sunniest months:
December 4 days
March 4 days
September 4 days
Warmest months:
September 86.8 °F
October 86.0 °F
August 85.8 °F
Warmest sea temp:
September 84.8 °F
October 84.6 °F
August 84.0 °F
Coldest months:
January 81.9 °F
February 81.9 °F
March 82.2 °F
Rainiest months:
August 7 days
October 5 days
September 5 days
Windiest months:
June 15.7 mph
February 15.4 mph
January 15.1 mph

Castries on a weather map

Current weather
06:34
Castries
+79°F
W 16 mph
Feels like: +82°F
Precip.: 73%
Places in Saint Lucia:
Name
°F
Vieux Fort
+79°F
Castries
+79°F
24 Hours Forecast
Castries
Local time: 06:34
December 21, sunday
0900
81°F
W
16 mph
1200
81°F
W
17 mph
1500
81°F
W
17 mph
1800
79°F
W
16 mph
2100
77°F
W
16 mph
December 22, monday
0000
77°F
W
13 mph
0300
77°F
W
13 mph
0600
77°F
W
13 mph
Units of measurement: °C / °F