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
Rainfall
Sunshine & UV index

Temperature in St Lucia (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	29	29	29	27	25	23	23	24	24	25	26	28
Min temperature (night-time)	21	21	21	18	16	13	13	15	16	17	19	20
Heat & Humidity	H	H	M	M	L	0	0	0	0	L	L	M
Sea temperature	26	27	27	26	25	23	23	22	22	23	24	25

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

Sunshine & UV index in St Lucia

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	8	8	8	7	8	8	8	8	7	7	7	8
Daily hours of daylight	14	13	12	11	11	10	11	11	12	13	14	14
UV Index (Maximum)	11	11	10	7	5	4	4	6	8	10	11	11

Rainfall in St Lucia

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	12	12	11	9	8	7	7	7	9	12	13	10
Average monthly rainfall (mm)	148	136	130	111	91	85	80	65	87	103	111	91

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.

St Lucia weather in January

Expect daytime maximum temperatures of 29°C in St Lucia, South Africa in January and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 148 mm of rainfall in the month.

29
29°C max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
21
21°C min night temperature
14
14 hours of daylight per day
H
High heat & humidity
148
148 mm of monthly rainfall
11
11+ (Extreme) UV index
26
26°C sea temperature

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St Lucia weather in February

Expect daytime maximum temperatures of 29°C in St Lucia, South Africa in February and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 136 mm of rainfall in the month.

29
29°C max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
21
21°C min night temperature
13
13 hours of daylight per day
H
High heat & humidity
136
136 mm of monthly rainfall
11
11+ (Extreme) UV index
27
27°C sea temperature

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St Lucia weather in March

Expect daytime maximum temperatures of 29°C in St Lucia, South Africa in March based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 130 mm of rainfall in the month.

29
29°C max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
21
21°C min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
130
130 mm of monthly rainfall
10
10 (Very High) UV index
27
27°C sea temperature

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St Lucia weather in April

Expect daytime maximum temperatures of 27°C in St Lucia, South Africa in April based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 111 mm of rainfall in the month.

27
27°C max day temperature
7
7 hours of sunshine per day
9
9 days with some rainfall
18
18°C min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
111
111 mm of monthly rainfall
7
7 (High) UV index
26
26°C sea temperature

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St Lucia weather in May

Expect daytime maximum temperatures of 25°C in St Lucia, South Africa in May based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 91 mm of rainfall in the month.

25
25°C max day temperature
8
8 hours of sunshine per day
8
8 days with some rainfall
16
16°C min night temperature
11
11 hours of daylight per day
L
Low heat & humidity
91
91 mm of monthly rainfall
5
5 (Moderate) UV index
25
25°C sea temperature

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St Lucia weather in June

Expect daytime maximum temperatures of 23°C in St Lucia, South Africa in June based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 85 mm of rainfall in the month.

23
23°C max day temperature
8
8 hours of sunshine per day
7
7 days with some rainfall
13
13°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
85
85 mm of monthly rainfall
4
4 (Moderate) UV index
23
23°C sea temperature

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St Lucia weather in July

Expect daytime maximum temperatures of 23°C in St Lucia, South Africa in July based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 80 mm of rainfall in the month.

23
23°C max day temperature
8
8 hours of sunshine per day
7
7 days with some rainfall
13
13°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
80
80 mm of monthly rainfall
4
4 (Moderate) UV index
23
23°C sea temperature

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St Lucia weather in August

Expect daytime maximum temperatures of 24°C in St Lucia, South Africa in August based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 65 mm of rainfall in the month.

24
24°C max day temperature
8
8 hours of sunshine per day
7
7 days with some rainfall
15
15°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
65
65 mm of monthly rainfall
6
6 (High) UV index
22
22°C sea temperature

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St Lucia weather in September

Expect daytime maximum temperatures of 24°C in St Lucia, South Africa in September based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 87 mm of rainfall in the month.

24
24°C max day temperature
7
7 hours of sunshine per day
9
9 days with some rainfall
16
16°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
87
87 mm of monthly rainfall
8
8 (Very High) UV index
22
22°C sea temperature

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St Lucia weather in October

Expect daytime maximum temperatures of 25°C in St Lucia, South Africa in October based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 103 mm of rainfall in the month.

25
25°C max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
17
17°C min night temperature
13
13 hours of daylight per day
L
Low heat & humidity
103
103 mm of monthly rainfall
10
10 (Very High) UV index
23
23°C sea temperature

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St Lucia weather in November

Expect daytime maximum temperatures of 26°C in St Lucia, South Africa in November based on long-term weather averages. There are 7 hours of sunshine per day on average with 13 days with some rainfall and typically 111 mm of rainfall in the month.

26
26°C max day temperature
7
7 hours of sunshine per day
13
13 days with some rainfall
19
19°C min night temperature
14
14 hours of daylight per day
L
Low heat & humidity
111
111 mm of monthly rainfall
11
11+ (Extreme) UV index
24
24°C sea temperature

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St Lucia weather in December

Expect daytime maximum temperatures of 28°C in St Lucia, South Africa in December based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 91 mm of rainfall in the month.

28
28°C max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
20
20°C min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
91
91 mm of monthly rainfall
11
11+ (Extreme) UV index
25
25°C sea temperature

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