Measurements:
°C
°F
CURRENT WEATHER
16:53
Castries
86°F
W 17 mph
Feels like: 94°F
Precip: 65%
World Resorts Saint Lucia Castries Weather

14 Day Weather Forecast

09.08
tue
DAY
90°F
W 18 mph
precip
18%
NIGHT
86°F
W 20 mph
precip
29%
09.09
wed
DAY
90°F
W 18 mph
precip
19%
NIGHT
86°F
W 17 mph
precip
23%
09.10
thu
DAY
88°F
W 17 mph
precip
46%
NIGHT
84°F
W 19 mph
precip
35%
09.11
fri
DAY
88°F
W 19 mph
precip
8%
NIGHT
84°F
W 19 mph
precip
23%
09.12
sat
DAY
88°F
W 16 mph
precip
38%
NIGHT
84°F
W 14 mph
precip
15%
09.13
sun
DAY
88°F
W 16 mph
precip
22%
NIGHT
84°F
W 15 mph
precip
19%
09.14
mon
DAY
88°F
W 16 mph
precip
47%
NIGHT
84°F
W 16 mph
precip
56%
09.15
tue
DAY
86°F
W 15 mph
precip
42%
NIGHT
84°F
W 16 mph
precip
33%
09.16
wed
DAY
86°F
W 15 mph
precip
56%
NIGHT
84°F
W 18 mph
precip
80%
09.17
thu
DAY
86°F
W 15 mph
precip
22%
NIGHT
84°F
W 17 mph
precip
63%
09.18
fri
DAY
86°F
W 14 mph
precip
18%
NIGHT
84°F
W 12 mph
precip
19%
09.19
sat
DAY
90°F
W 13 mph
precip
14%
NIGHT
84°F
W 11 mph
precip
19%
09.20
sun
DAY
90°F
W 15 mph
precip
10%
NIGHT
86°F
W 13 mph
precip
28%
09.21
mon
DAY
90°F
W 15 mph
precip
21%
NIGHT
86°F
W 14 mph
precip
14%

Castries Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Castries was 89.5°F. The maximum and minimum values were 88.8°F and 89.8°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 89.7 °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
July 15 mph
more details
Saint Lucia Resorts:
NAME
F°
Castries +86
Vieux Fort +86
24 Hours Weather Forecast
Castries
Local time: 16:53
08 sep, tuesday
1800 86°F
W
17 mph
2100 86°F
W
19 mph
09 sep, wednesday
0000 86°F
W
20 mph
0300 84°F
W
19 mph
0600 84°F
W
17 mph
0900 88°F
W
18 mph
1200 90°F
W
18 mph
1500 88°F
W
17 mph