St Thomas weather by month

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

Temperature
Rainfall
Sunshine & UV index

Temperature in St Thomas (°F)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	82	82	82	84	84	86	86	88	88	86	84	82
Min temperature (night-time)	70	70	70	72	73	75	75	75	75	75	73	72
Heat & Humidity	M	M	M	M	H	H	H	H	H	H	H	M
Sea temperature	79	79	79	79	81	82	82	82	84	84	82	81

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

Sunshine & UV index in St Thomas

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	8	8	9	9	8	8	9	9	8	8	7	7
Daily hours of daylight	11	12	12	13	13	13	13	13	12	12	11	11
UV Index (Maximum)	8	10	11	11	11	11	11	11	11	10	8	7

Rainfall in St Thomas

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	14	10	10	9	12	12	14	14	16	16	15	14
Average monthly rainfall (inches)	2.7	2.1	2.2	3.5	5.1	2.9	3.3	4.9	5.6	6.3	6.3	4.7

More about the St Thomas

St Thomas by month

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

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The climate guide for Virgin Islands (St Thomas) 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 Thomas?

St Thomas has a hot tropical climate with a winter dry season.

St Thomas weather in January

Expect daytime maximum temperatures of 82°F in St Thomas, Virgin Islands in January based on long-term weather averages. There are 8 hours of sunshine per day on average with 14 days with some rainfall and typically 2.7 inches of rainfall in the month.

82
82°F max day temperature
8
8 hours of sunshine per day
14
14 days with some rainfall
70
70°F min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
2.7
2.7 inches of monthly rainfall
8
8 (Very High) UV index
79
79°F sea temperature

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St Thomas weather in February

Expect daytime maximum temperatures of 82°F in St Thomas, Virgin Islands in February based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 2.1 inches of rainfall in the month.

82
82°F max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
70
70°F min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
2.1
2.1 inches of monthly rainfall
10
10 (Very High) UV index
79
79°F sea temperature

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St Thomas weather in March

Expect daytime maximum temperatures of 82°F in St Thomas, Virgin Islands in March based on long-term weather averages. There are 9 hours of sunshine per day on average with 10 days with some rainfall and typically 2.2 inches of rainfall in the month.

82
82°F max day temperature
9
9 hours of sunshine per day
10
10 days with some rainfall
70
70°F min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
2.2
2.2 inches of monthly rainfall
11
11+ (Extreme) UV index
79
79°F sea temperature

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St Thomas weather in April

Expect daytime maximum temperatures of 84°F in St Thomas, Virgin Islands in April based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 3.5 inches of rainfall in the month.

84
84°F max day temperature
9
9 hours of sunshine per day
9
9 days with some rainfall
72
72°F min night temperature
13
13 hours of daylight per day
M
Moderate heat & humidity
3.5
3.5 inches of monthly rainfall
11
11+ (Extreme) UV index
79
79°F sea temperature

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St Thomas weather in May

Expect daytime maximum temperatures of 84°F in St Thomas, Virgin Islands in May 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 5.1 inches of rainfall in the month.

84
84°F max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
73
73°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
5.1
5.1 inches of monthly rainfall
11
11+ (Extreme) UV index
81
81°F sea temperature

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St Thomas weather in June

Expect daytime maximum temperatures of 86°F in St Thomas, Virgin Islands in June 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 2.9 inches of rainfall in the month.

86
86°F max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
75
75°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
2.9
2.9 inches of monthly rainfall
11
11+ (Extreme) UV index
82
82°F sea temperature

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St Thomas weather in July

Expect daytime maximum temperatures of 86°F in St Thomas, Virgin Islands in July and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with 14 days with some rainfall and typically 3.3 inches of rainfall in the month.

86
86°F max day temperature
9
9 hours of sunshine per day
14
14 days with some rainfall
75
75°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
3.3
3.3 inches of monthly rainfall
11
11+ (Extreme) UV index
82
82°F sea temperature

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St Thomas weather in August

Expect daytime maximum temperatures of 88°F in St Thomas, Virgin Islands in August and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with 14 days with some rainfall and typically 4.9 inches of rainfall in the month.

88
88°F max day temperature
9
9 hours of sunshine per day
14
14 days with some rainfall
75
75°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
4.9
4.9 inches of monthly rainfall
11
11+ (Extreme) UV index
82
82°F sea temperature

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St Thomas weather in September

Expect daytime maximum temperatures of 88°F in St Thomas, Virgin Islands in September and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 16 days with some rainfall and typically 5.6 inches of rainfall in the month.

88
88°F max day temperature
8
8 hours of sunshine per day
16
16 days with some rainfall
75
75°F min night temperature
12
12 hours of daylight per day
H
High heat & humidity
5.6
5.6 inches of monthly rainfall
11
11+ (Extreme) UV index
84
84°F sea temperature

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St Thomas weather in October

Expect daytime maximum temperatures of 86°F in St Thomas, Virgin Islands in October and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 16 days with some rainfall and typically 6.3 inches of rainfall in the month.

86
86°F max day temperature
8
8 hours of sunshine per day
16
16 days with some rainfall
75
75°F min night temperature
12
12 hours of daylight per day
H
High heat & humidity
6.3
6.3 inches of monthly rainfall
10
10 (Very High) UV index
84
84°F sea temperature

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St Thomas weather in November

Expect daytime maximum temperatures of 84°F in St Thomas, Virgin Islands in November and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 6.3 inches of rainfall in the month.

84
84°F max day temperature
7
7 hours of sunshine per day
15
15 days with some rainfall
73
73°F min night temperature
11
11 hours of daylight per day
H
High heat & humidity
6.3
6.3 inches of monthly rainfall
8
8 (Very High) UV index
82
82°F sea temperature

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St Thomas weather in December

Expect daytime maximum temperatures of 82°F in St Thomas, Virgin Islands in December based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 4.7 inches of rainfall in the month.

82
82°F max day temperature
7
7 hours of sunshine per day
14
14 days with some rainfall
72
72°F min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
4.7
4.7 inches of monthly rainfall
7
7 (High) UV index
81
81°F sea temperature

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