World Resorts Saint Lucia Castries

Castries Monthly Weather Averages

Please click on any column to get detailed information about Castries weather in that particular month. You will get daily weather information for that month for the last several years.

Day & Night air temperature, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
82.1
83.6
84.9
85.8
85.1
85.0
84.2
84.0
83.1
81.8
81.4
81.2
77.8
79.2
80.2
81.1
80.6
80.4
80.1
79.5
77.8
76.8
76.5
76.7
Day temperature   
Night temperature

The warmest month in Castries is september. The average daily temp is 85.8°F. The average nightly temp is 81.1°F.

Sea water temperature, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
82.2
83.6
84.5
84.8
83.9
82.8
82.4
81.8
81
80.4
80.3
81

The warmest sea temperature usually observed in September. Average daily sea water temperature during this month is 84.8°F.

Precipitation total, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.8
1.7
2.5
3.4
4.2
5.1
5.9
2
4
4.4
4.6
4.9
3.2
2.9
1.7
1.6
1.5
1.5
1.8

March is the month with least precipitations during the year. The average precipitation totals for this month is 1.5 in. The month with most precipitation total is August.

Number of rainy days

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
4
7
7
7
8
5
4
2
2
2
2
2

This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.

Wind speed, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
2
4
6
8
10
12
14
16
18
14.4
12.9
11.9
10.8
13.4
15.2
15.5
14.9
13.8
14.6
15.4
14.8
Sunny, partly cloudy and cloudy days
1
2
3
4
5
6
7
8
9
10
11
12
0
5
10
15
20
25
30
35
13
15
14
12
16
16
17
15
14
10
10
12
15
13
15
16
13
13
12
15
14
17
17
17
3
1
2
3
2
1
2
1
2
3
2
2
Cloudy days   
Partly cloudy days   
Sunny days
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
5.5
4.8
5.3
6
5.4
5.6
5.8
6.1
5.9
6
5.5
5

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

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

Best time for vacation in Castries

Sunniest months:
September 5 days
December 4 days
March 4 days
Warmest months:
September 86.9 °F
October 86.1 °F
August 85.9 °F
Warmest sea temp:
September 84.8 °F
October 84.5 °F
August 83.9 °F
Coldest months:
January 81.9 °F
February 81.9 °F
March 82.2 °F
Rainiest months:
August 7 days
September 6 days
October 5 days
Windiest months:
June 15.5 mph
February 15.4 mph
January 15.1 mph

Castries on a weather map

Leaflet | Tiles © Esri
Places in Saint Lucia:
Name
°F
Vieux Fort
+77°F
Castries
+77°F
24 Hours Forecast
Castries
Local time: 04:10
April 02, wednesday
0600
77°F
W
16 mph
0900
79°F
W
19 mph
1200
81°F
W
19 mph
1500
79°F
W
19 mph
1800
77°F
SW
19 mph
2100
77°F
W
17 mph
April 03, thursday
0000
77°F
W
18 mph
0300
77°F
W
19 mph
Units of measurement: °C / °F