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:
2026
2025
2024

The average sea water temperature in August of 2026 was 83.6°F. The highest and lowest sea temperatures during the month were 84.0°F and 83.1°F.

Monthly sea water temperature in Castries, °F

Which Saint Lucia resorts have warmest sea in August?

Place name August 2026 August 2025
Castries 83.6°F 84.5°F
Vieux Fort 83.4°F 84.7°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 81.8 °F
February 81.9 °F
March 82.1 °F
Rainiest months:
August 7 days
October 5 days
September 5 days
Windiest months:
June 15.8 mph
February 15.4 mph
July 15.0 mph

Castries on a weather map

Current weather
14:26
Castries
+82°F
W 24 mph
Feels like: +88°F
Precip.: 49%
Places in Saint Lucia:
Name
°F
Vieux Fort
+81°F
Castries
+82°F
24 Hours Forecast
Castries
Local time: 14:26
August 15, saturday
1500
82°F
W
24 mph
1800
81°F
W
22 mph
2100
79°F
W
23 mph
August 16, sunday
0000
79°F
W
21 mph
0300
79°F
W
17 mph
0600
79°F
W
19 mph
0900
82°F
W
19 mph
1200
84°F
W
19 mph
Units of measurement: °C / °F