Castries weather by month

Check out Castries weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Castries (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
28°C maximum daytime temperature in January in Castries28
28°C maximum daytime temperature in February in Castries28
29°C maximum daytime temperature in March in Castries29
29°C maximum daytime temperature in April in Castries29
30°C maximum daytime temperature in May in Castries30
30°C maximum daytime temperature in June in Castries30
30°C maximum daytime temperature in July in Castries30
30°C maximum daytime temperature in August in Castries30
30°C maximum daytime temperature in September in Castries30
30°C maximum daytime temperature in October in Castries30
29°C maximum daytime temperature in November in Castries29
29°C maximum daytime temperature in December in Castries29
Min temperature (night-time)
22°C minimum night-time temperature in January in Castries22
22°C minimum night-time temperature in February in Castries22
22°C minimum night-time temperature in March in Castries22
23°C minimum night-time temperature in April in Castries23
24°C minimum night-time temperature in May in Castries24
24°C minimum night-time temperature in June in Castries24
25°C minimum night-time temperature in July in Castries25
24°C minimum night-time temperature in August in Castries24
24°C minimum night-time temperature in September in Castries24
24°C minimum night-time temperature in October in Castries24
23°C minimum night-time temperature in November in Castries23
23°C minimum night-time temperature in December in Castries23
Heat & Humidity
Moderate heat & humidity in January in CastriesM
Moderate heat & humidity in February in CastriesM
Moderate heat & humidity in March in CastriesM
High heat & humidity in April in CastriesH
High heat & humidity in May in CastriesH
High heat & humidity in June in CastriesH
High heat & humidity in July in CastriesH
Very high heat & humidity in August in CastriesVH
Very high heat & humidity in September in CastriesVH
High heat & humidity in October in CastriesH
High heat & humidity in November in CastriesH
Moderate heat & humidity in December in CastriesM
Sea temperature
27°C sea temperature in January in Castries27
26°C sea temperature in February in Castries26
27°C sea temperature in March in Castries27
27°C sea temperature in April in Castries27
28°C sea temperature in May in Castries28
28°C sea temperature in June in Castries28
28°C sea temperature in July in Castries28
29°C sea temperature in August in Castries29
29°C sea temperature in September in Castries29
29°C sea temperature in October in Castries29
28°C sea temperature in November in Castries28
28°C sea temperature in December in Castries28

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Castries

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
11 hours of daylight per day in January in Castries11
12 hours of daylight per day in February in Castries12
12 hours of daylight per day in March in Castries12
12 hours of daylight per day in April in Castries12
13 hours of daylight per day in May in Castries13
13 hours of daylight per day in June in Castries13
13 hours of daylight per day in July in Castries13
13 hours of daylight per day in August in Castries13
12 hours of daylight per day in September in Castries12
12 hours of daylight per day in October in Castries12
11 hours of daylight per day in November in Castries11
11 hours of daylight per day in December in Castries11
UV Index (Maximum)
UV (maximum) index 9 (Very High) in January in Castries9
UV (maximum) index 11 (Extreme) in February in Castries11
UV (maximum) index 11+ (Extreme) in March in Castries11
UV (maximum) index 11+ (Extreme) in April in Castries11
UV (maximum) index 11+ (Extreme) in May in Castries11
UV (maximum) index 11+ (Extreme) in June in Castries11
UV (maximum) index 11+ (Extreme) in July in Castries11
UV (maximum) index 11+ (Extreme) in August in Castries11
UV (maximum) index 11+ (Extreme) in September in Castries11
UV (maximum) index 11 (Extreme) in October in Castries11
UV (maximum) index 9 (Very High) in November in Castries9
UV (maximum) index 8 (Very High) in December in Castries8

Rainfall in Castries

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
17 days with some rainfall in January in Castries17
13 days with some rainfall in February in Castries13
13 days with some rainfall in March in Castries13
11 days with some rainfall in April in Castries11
15 days with some rainfall in May in Castries15
19 days with some rainfall in June in Castries19
21 days with some rainfall in July in Castries21
20 days with some rainfall in August in Castries20
25 days with some rainfall in September in Castries25
18 days with some rainfall in October in Castries18
19 days with some rainfall in November in Castries19
18 days with some rainfall in December in Castries18
Average monthly rainfall (mm)
113 mm monthly rainfall in January in Castries113
86 mm monthly rainfall in February in Castries86
76 mm monthly rainfall in March in Castries76
96 mm monthly rainfall in April in Castries96
124 mm monthly rainfall in May in Castries124
182 mm monthly rainfall in June in Castries182
245 mm monthly rainfall in July in Castries245
216 mm monthly rainfall in August in Castries216
224 mm monthly rainfall in September in Castries224
269 mm monthly rainfall in October in Castries269
255 mm monthly rainfall in November in Castries255
149 mm monthly rainfall in December in Castries149

More about Castries

Castries by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for St Lucia (Castries) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Castries?

Castries has a hot tropical climate with no dry season.

Metric (°C / mm)  |  Imperial (°F / inches)

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Tropical storm risk: Castries, St Lucia hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
1%
2.4%
3.6%
1.8%
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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Compare Castries with the USA

Below the Castries chart shows average maximum daytime temperature for Castries, St Lucia and the USA (Washington).

Maximum daytime temperature (°C)

Castries, St Lucia
USA (Washington)
28
5
28
7
29
13
29
19
30
24
30
29
30
31
30
30
30
26
30
20
29
14
29
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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