Current sea water temperature:
+79.9°F
| Minimum sea water temperature in March: | 82.8°F |
| Maximum sea water temperature in March: | 79.0°F |
| Average sea water temperature in March: | 80.4°F |
| more information | |
14 days
forecast
forecast
| Castries |
monthly
weather
weather
| Castries |
Sea water temperature for the last 10 days:
| March 22 | 79.9°F | March 17 | 79.7°F |
| March 21 | 79.3°F | March 16 | 80.1°F |
| March 20 | 79.5°F | March 15 | 80.2°F |
| March 19 | 79.5°F | March 14 | 80.1°F |
| March 18 | 79.5°F | March 13 | 80.2°F |
Monthly sea water temperature, °F
When is the warmest sea in Castries?
Based on the data about daily sea water temperature for the last three years the warmest sea in Castries was noticed in September, October and August.
Monthly Sea Temperatures in Castries, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 85.5°F. The highest and lowest sea temperatures during the month were 85.8°F and 84.9°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 85.3°F. The highest and lowest sea temperatures during the month were 86.2°F and 84.6°F.
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.
current
weather
weather
| Castries |
weather in
March
March
| Castries |
Best time for vacation in Castries
Castries on a weather map
24 Hours Forecast
Castries
Local time: 03:29
March 22, sunday
0600
75°F
NW
5 mph
5 mph
0900
79°F
NW
7 mph
7 mph
1200
82°F
NW
8 mph
8 mph
1500
82°F
W
7 mph
7 mph
1800
79°F
W
9 mph
9 mph
2100
77°F
W
9 mph
9 mph
March 23, monday
0000
77°F
W
11 mph
11 mph
0300
75°F
W
10 mph
10 mph
