Measurements:
°C
°F
CURRENT WEATHER
03:21
Castries
80°F
SW 13 mph
Feels like: 84°F
Precip: 0%
World Resorts Saint Lucia Castries Weather

7 Day Weather Forecast

03.30
mon
DAY
84°F
SW 14 mph
precip
0%
NIGHT
80°F
SW 12 mph
precip
0%
03.31
tue
DAY
84°F
SW 14 mph
precip
82%
NIGHT
80°F
W 12 mph
precip
100%
04.01
wed
DAY
84°F
W 15 mph
precip
0%
NIGHT
80°F
W 12 mph
precip
82%
04.02
thu
DAY
86°F
W 14 mph
precip
61%
NIGHT
80°F
W 13 mph
precip
62%
04.03
fri
DAY
86°F
W 17 mph
precip
71%
NIGHT
82°F
W 17 mph
precip
87%
04.04
sat
DAY
86°F
W 17 mph
precip
85%
NIGHT
82°F
W 17 mph
precip
100%
04.05
sun
DAY
84°F
W 18 mph
precip
78%
NIGHT
80°F
W 17 mph
precip
72%

Castries Sea Water Temperature in March, °F

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Castries was 26.8°F. The maximum and minimum values were 26.3°F and 27.3°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