St Lucia weather by month

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

Temperature in St Lucia (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
29°C maximum daytime temperature in January in St Lucia29
29°C maximum daytime temperature in February in St Lucia29
29°C maximum daytime temperature in March in St Lucia29
27°C maximum daytime temperature in April in St Lucia27
25°C maximum daytime temperature in May in St Lucia25
23°C maximum daytime temperature in June in St Lucia23
23°C maximum daytime temperature in July in St Lucia23
24°C maximum daytime temperature in August in St Lucia24
24°C maximum daytime temperature in September in St Lucia24
25°C maximum daytime temperature in October in St Lucia25
26°C maximum daytime temperature in November in St Lucia26
28°C maximum daytime temperature in December in St Lucia28
Min temperature (night-time)
21°C minimum night-time temperature in January in St Lucia21
21°C minimum night-time temperature in February in St Lucia21
21°C minimum night-time temperature in March in St Lucia21
18°C minimum night-time temperature in April in St Lucia18
16°C minimum night-time temperature in May in St Lucia16
13°C minimum night-time temperature in June in St Lucia13
13°C minimum night-time temperature in July in St Lucia13
15°C minimum night-time temperature in August in St Lucia15
16°C minimum night-time temperature in September in St Lucia16
17°C minimum night-time temperature in October in St Lucia17
19°C minimum night-time temperature in November in St Lucia19
20°C minimum night-time temperature in December in St Lucia20
Heat & Humidity
High heat & humidity in January in St LuciaH
High heat & humidity in February in St LuciaH
Moderate heat & humidity in March in St LuciaM
Moderate heat & humidity in April in St LuciaM
Low heat & humidity in May in St LuciaL
No heat & humidity in June in St Lucia0
No heat & humidity in July in St Lucia0
No heat & humidity in August in St Lucia0
No heat & humidity in September in St Lucia0
Low heat & humidity in October in St LuciaL
Low heat & humidity in November in St LuciaL
Moderate heat & humidity in December in St LuciaM
Sea temperature
26°C sea temperature in January in St Lucia26
27°C sea temperature in February in St Lucia27
27°C sea temperature in March in St Lucia27
26°C sea temperature in April in St Lucia26
25°C sea temperature in May in St Lucia25
23°C sea temperature in June in St Lucia23
23°C sea temperature in July in St Lucia23
22°C sea temperature in August in St Lucia22
22°C sea temperature in September in St Lucia22
23°C sea temperature in October in St Lucia23
24°C sea temperature in November in St Lucia24
25°C sea temperature in December in St Lucia25

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

Sunshine & Daylight in St Lucia

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
14 hours of daylight per day in January in St Lucia14
13 hours of daylight per day in February in St Lucia13
12 hours of daylight per day in March in St Lucia12
11 hours of daylight per day in April in St Lucia11
11 hours of daylight per day in May in St Lucia11
10 hours of daylight per day in June in St Lucia10
11 hours of daylight per day in July in St Lucia11
11 hours of daylight per day in August in St Lucia11
12 hours of daylight per day in September in St Lucia12
13 hours of daylight per day in October in St Lucia13
14 hours of daylight per day in November in St Lucia14
14 hours of daylight per day in December in St Lucia14
UV Index (Maximum)
UV (maximum) index 11+ (Extreme) in January in St Lucia11
UV (maximum) index 11+ (Extreme) in February in St Lucia11
UV (maximum) index 10 (Very High) in March in St Lucia10
UV (maximum) index 7 (High) in April in St Lucia7
UV (maximum) index 5 (Moderate) in May in St Lucia5
UV (maximum) index 4 (Moderate) in June in St Lucia4
UV (maximum) index 4 (Moderate) in July in St Lucia4
UV (maximum) index 6 (High) in August in St Lucia6
UV (maximum) index 8 (Very High) in September in St Lucia8
UV (maximum) index 10 (Very High) in October in St Lucia10
UV (maximum) index 11+ (Extreme) in November in St Lucia11
UV (maximum) index 11+ (Extreme) in December in St Lucia11

Rainfall in St Lucia

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
12 days with some rainfall in January in St Lucia12
12 days with some rainfall in February in St Lucia12
11 days with some rainfall in March in St Lucia11
9 days with some rainfall in April in St Lucia9
8 days with some rainfall in May in St Lucia8
7 days with some rainfall in June in St Lucia7
7 days with some rainfall in July in St Lucia7
7 days with some rainfall in August in St Lucia7
9 days with some rainfall in September in St Lucia9
12 days with some rainfall in October in St Lucia12
13 days with some rainfall in November in St Lucia13
10 days with some rainfall in December in St Lucia10
Average monthly rainfall (mm)
148 mm monthly rainfall in January in St Lucia148
136 mm monthly rainfall in February in St Lucia136
130 mm monthly rainfall in March in St Lucia130
111 mm monthly rainfall in April in St Lucia111
91 mm monthly rainfall in May in St Lucia91
85 mm monthly rainfall in June in St Lucia85
80 mm monthly rainfall in July in St Lucia80
65 mm monthly rainfall in August in St Lucia65
87 mm monthly rainfall in September in St Lucia87
103 mm monthly rainfall in October in St Lucia103
111 mm monthly rainfall in November in St Lucia111
91 mm monthly rainfall in December in St Lucia91

More about St Lucia

St Lucia by month

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

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The climate guide for South Africa (St Lucia) 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 St Lucia?

St Lucia has a temperate climate with hot summers and some rainfall in all months.

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

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More about South Africa

Compare St Lucia with the UK

Below the St Lucia chart shows average maximum daytime temperature for St Lucia, South Africa and the UK (London).

Maximum daytime temperature (°C)

St Lucia, South Africa
UK (London)
29
7
29
7
29
10
27
13
25
17
23
20
23
22
24
22
24
19
25
15
26
10
28
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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