World Resorts Saint Lucia Castries Weather

Castries 14 Days Forecast

20.03
fri
Day
81°F
W 16 mph
Precip.
0%
Night
75°F
W 10 mph
Precip.
77%
21.03
sat
Day
81°F
W 13 mph
Precip.
87%
Night
77°F
NW 8 mph
Precip.
100%
22.03
sun
Day
81°F
W 12 mph
Precip.
0%
Night
77°F
W 9 mph
Precip.
0%
23.03
mon
Day
81°F
W 12 mph
Precip.
100%
Night
77°F
W 12 mph
Precip.
0%
24.03
tue
Day
81°F
W 14 mph
Precip.
0%
Night
77°F
W 15 mph
Precip.
89%
25.03
wed
Day
81°F
W 16 mph
Precip.
0%
Night
77°F
SW 16 mph
Precip.
64%
26.03
thu
Day
81°F
W 19 mph
Precip.
0%
Night
77°F
W 17 mph
Precip.
81%
27.03
fri
Day
81°F
W 17 mph
Precip.
51%
Night
77°F
W 16 mph
Precip.
51%
28.03
sat
Day
79°F
SW 19 mph
Precip.
100%
Night
77°F
W 17 mph
Precip.
100%
29.03
sun
Day
81°F
W 19 mph
Precip.
0%
Night
77°F
W 18 mph
Precip.
25%
30.03
mon
Day
81°F
W 17 mph
Precip.
100%
Night
77°F
W 18 mph
Precip.
100%
31.03
tue
Day
81°F
W 17 mph
Precip.
53%
Night
77°F
W 13 mph
Precip.
100%
01.04
wed
Day
79°F
W 14 mph
Precip.
100%
Night
77°F
W 12 mph
Precip.
78%
02.04
thu
Day
81°F
W 15 mph
Precip.
100%
Night
77°F
W 16 mph
Precip.
100%

Sea water temperature in March, °F

Show year:
2026
2025
2024

The average sea water temperature in March of 2026 was 80.4°F. The highest and lowest sea temperatures during the month were 81.1°F and 79.5°F.

Sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 81.3°F. The highest and lowest sea temperatures during the month were 82.0°F and 80.6°F.

Air temperature in Castries, °F

Precipitation total in Castries, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Castries

Sunniest months:
December 4 days
March 4 days
September 4 days
Warmest months:
September 86.8 °F
October 86.0 °F
August 85.8 °F
Warmest sea temp:
September 84.8 °F
October 84.6 °F
August 84.0 °F
Coldest months:
January 81.8 °F
February 81.9 °F
March 82.2 °F
Rainiest months:
August 7 days
October 5 days
September 5 days
Windiest months:
June 15.7 mph
February 15.4 mph
January 15.0 mph

Castries on a weather map

Current weather
14:37
Castries
+81°F
W 15 mph
Feels like: +82°F
Precip.: 0%
Places in Saint Lucia:
Name
°F
Vieux Fort
+79°F
Castries
+81°F
24 Hours Forecast
Castries
Local time: 14:37
March 20, friday
1500
81°F
W
15 mph
1800
77°F
W
12 mph
2100
77°F
W
11 mph
March 21, saturday
0000
75°F
W
10 mph
0300
75°F
W
11 mph
0600
75°F
W
8 mph
0900
79°F
W
10 mph
1200
81°F
W
13 mph
Units of measurement: °C / °F