Average sea water temperature in January:
+81.0°F
| Minimum sea water temperature in January: | 82.8°F |
| Maximum sea water temperature in January: | 79.5°F |
Daily sea water temperature in January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 81.3°F. The highest and lowest sea temperatures during the month were 81.5°F and 81.0°F.
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| Castries |
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| Castries |
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| Castries |
14 days
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| Castries |
Monthly sea water temperature in Castries, °F
Which Saint Lucia resorts have warmest sea in January?
| Place name | January 2026 | January 2025 |
|---|---|---|
| Vieux Fort | 81.3°F | 82.2°F |
| Castries | 81.3°F | 82.2°F |
Best time for vacation in Castries
Castries on a weather map
24 Hours Forecast
Castries
Local time: 18:40
October 15, thursday
2100

81°F
W
10 mph
10 mph
October 16, friday
0000

81°F
W
9 mph
9 mph
0300

79°F
W
7 mph
7 mph
0600

79°F
W
7 mph
7 mph
0900

84°F
W
11 mph
11 mph
1200

86°F
W
12 mph
12 mph
1500

86°F
W
13 mph
13 mph
1800

82°F
W
11 mph
11 mph

























