Measurements:
°C
°F
CURRENT WEATHER
21:06
Castries
80°F
W 20 mph
Feels like: 84°F
Precip: 100%
World Resorts Saint Lucia Castries Weather

7 Day Weather Forecast

03.09
mon
DAY
84°F
W 21 mph
precip
86%
NIGHT
80°F
W 22 mph
precip
100%
03.10
tue
DAY
82°F
W 19 mph
precip
100%
NIGHT
80°F
W 18 mph
precip
85%
03.11
wed
DAY
84°F
W 19 mph
precip
77%
NIGHT
80°F
W 18 mph
precip
70%
03.12
thu
DAY
84°F
W 17 mph
precip
0%
NIGHT
80°F
W 14 mph
precip
88%
03.13
fri
DAY
84°F
W 16 mph
precip
67%
NIGHT
80°F
W 17 mph
precip
79%
03.14
sat
DAY
84°F
W 18 mph
precip
73%
NIGHT
80°F
W 18 mph
precip
100%
03.15
sun
DAY
84°F
W 20 mph
precip
100%
NIGHT
80°F
W 21 mph
precip
73%

Castries Sea Water Temperature in March, °F

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for Castries was 27.3°F. The maximum and minimum values were 27.0°F and 27.7°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 85.8 °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