World Resorts Saint Lucia Castries Weather

Castries Sea Temperature in May

Average sea water temperature in May:
+81.9°F
Minimum sea water temperature in May: 84.4°F
Maximum sea water temperature in May: 79.9°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 82.3°F. The highest and lowest sea temperatures during the month were 82.6°F and 81.9°F.

Monthly sea water temperature in Castries, °F

Which Saint Lucia resorts have warmest sea in May?

Place name May 2026 May 2025
Castries 82.3°F 82.7°F
Vieux Fort 82.3°F 82.9°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
January 15.0 mph

Castries on a weather map

Current weather
05:49
Castries
+81°F
W 14 mph
Feels like: +86°F
Precip.: 10%
Places in Saint Lucia:
Name
°F
Vieux Fort
+81°F
Castries
+81°F
24 Hours Forecast
Castries
Local time: 05:49
July 25, saturday
0600
81°F
W
14 mph
0900
82°F
W
16 mph
1200
84°F
W
15 mph
1500
84°F
W
15 mph
1800
82°F
W
14 mph
2100
81°F
W
14 mph
July 26, sunday
0000
81°F
NW
9 mph
0300
79°F
W
7 mph
Units of measurement: °C / °F