World Resorts Saint Lucia Castries Weather

Castries Sea Temperature in March

Average sea water temperature in March:
+80.4°F
Minimum sea water temperature in March: 82.8°F
Maximum sea water temperature in March: 79.0°F

Daily sea water temperature in March, °F

Show year:
2026
2025
2024

The average sea water temperature in March of 2026 was 80.4°F. The highest and lowest sea temperatures during the month were 81.1°F and 79.5°F.

Monthly sea water temperature in Castries, °F

Which Saint Lucia resorts have warmest sea in March?

Place name March 2026 March 2025
Castries 80.4°F 81.2°F
Vieux Fort 80.3°F 81.2°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 82.2 °F
Rainiest months:
August 7 days
October 5 days
September 5 days
Windiest months:
June 15.7 mph
February 15.4 mph
January 15.0 mph

Castries on a weather map

Current weather
17:35
Castries
+77°F
W 12 mph
Feels like: +81°F
Precip.: 0%
Places in Saint Lucia:
Name
°F
Vieux Fort
+77°F
Castries
+77°F
24 Hours Forecast
Castries
Local time: 17:34
March 20, friday
1800
77°F
W
12 mph
2100
77°F
W
11 mph
March 21, saturday
0000
75°F
W
10 mph
0300
75°F
W
11 mph
0600
75°F
W
8 mph
0900
79°F
W
10 mph
1200
81°F
W
13 mph
1500
81°F
W
12 mph
Units of measurement: °C / °F