Measurements:
°C
°F
CURRENT WEATHER
05:42
Castries
80°F
W 9 mph
Feels like: 84°F
Precip: 64%
World Resorts Saint Lucia Castries Weather

7 Day Weather Forecast

04.21
tue
DAY
84°F
SW 14 mph
precip
100%
NIGHT
80°F
W 9 mph
precip
74%
04.22
wed
DAY
86°F
SW 12 mph
precip
84%
NIGHT
80°F
W 9 mph
precip
0%
04.23
thu
DAY
86°F
W 11 mph
precip
79%
NIGHT
80°F
W 9 mph
precip
76%
04.24
fri
DAY
86°F
W 12 mph
precip
78%
NIGHT
82°F
W 9 mph
precip
81%
04.25
sat
DAY
86°F
W 13 mph
precip
100%
NIGHT
80°F
W 10 mph
precip
100%
04.26
sun
DAY
84°F
W 14 mph
precip
84%
NIGHT
82°F
W 12 mph
precip
28%
04.27
mon
DAY
86°F
W 14 mph
precip
100%
NIGHT
82°F
W 14 mph
precip
22%

Castries Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Castries was 27.2°F. The maximum and minimum values were 26.9°F and 27.4°F respectively.

Castries on the Weather Map

Best Time to Visit Castries
The most sunny months:
December 4 days
March 4 days
September 4 days
The most warm months:
September 90.9 °F
October 90.0 °F
August 89.8 °F
Warmest sea temperature:
September 88.7 °F
October 88.4 °F
August 87.7 °F
The most cold months:
January 85.3 °F
February 85.4 °F
March 85.7 °F
The most rainy months:
August 7 days
October 5 days
September 5 days
The most windy months:
June 16 mph
February 15 mph
January 15 mph
more details