Current sea water temperature:
+84.7°F
| Minimum sea water temperature in September: | 86.9°F |
| Maximum sea water temperature in September: | 82.9°F |
| Average sea water temperature in September: | 84.8°F |
| more information | |
14 days
forecast
forecast
| Castries |
monthly
weather
weather
| Castries |
Sea water temperature for the last 10 days:
| September 5 | 84.7°F | August 31 | 84.4°F |
| September 4 | 84.7°F | August 30 | 84.2°F |
| September 3 | 84.7°F | August 29 | 84.2°F |
| September 2 | 84.4°F | August 28 | 84.2°F |
| September 1 | 84.6°F | August 27 | 84.2°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 83.8°F. The highest and lowest sea temperatures during the month were 84.6°F and 83.1°F.
current
weather
weather
| Castries |
weather in
September
September
| Castries |
Best time for vacation in Castries
Castries on a weather map
24 Hours Forecast
Castries
Local time: 03:34
September 05, saturday
0600
81°F
NW
9 mph
9 mph
0900
84°F
W
12 mph
12 mph
1200
88°F
W
14 mph
14 mph
1500
86°F
W
13 mph
13 mph
1800
82°F
W
12 mph
12 mph
2100
82°F
W
12 mph
12 mph
September 06, sunday
0000
82°F
W
12 mph
12 mph
0300
81°F
W
12 mph
12 mph
