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 in St Thomas (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
28°C maximum daytime temperature in January in St Thomas28
28°C maximum daytime temperature in February in St Thomas28
28°C maximum daytime temperature in March in St Thomas28
29°C maximum daytime temperature in April in St Thomas29
29°C maximum daytime temperature in May in St Thomas29
30°C maximum daytime temperature in June in St Thomas30
30°C maximum daytime temperature in July in St Thomas30
31°C maximum daytime temperature in August in St Thomas31
31°C maximum daytime temperature in September in St Thomas31
30°C maximum daytime temperature in October in St Thomas30
29°C maximum daytime temperature in November in St Thomas29
28°C maximum daytime temperature in December in St Thomas28
Min temperature (night-time)
21°C minimum night-time temperature in January in St Thomas21
21°C minimum night-time temperature in February in St Thomas21
21°C minimum night-time temperature in March in St Thomas21
22°C minimum night-time temperature in April in St Thomas22
23°C minimum night-time temperature in May in St Thomas23
24°C minimum night-time temperature in June in St Thomas24
24°C minimum night-time temperature in July in St Thomas24
24°C minimum night-time temperature in August in St Thomas24
24°C minimum night-time temperature in September in St Thomas24
24°C minimum night-time temperature in October in St Thomas24
23°C minimum night-time temperature in November in St Thomas23
22°C minimum night-time temperature in December in St Thomas22
Heat & Humidity
Moderate heat & humidity in January in St ThomasM
Moderate heat & humidity in February in St ThomasM
Moderate heat & humidity in March in St ThomasM
Moderate heat & humidity in April in St ThomasM
High heat & humidity in May in St ThomasH
High heat & humidity in June in St ThomasH
High heat & humidity in July in St ThomasH
High heat & humidity in August in St ThomasH
High heat & humidity in September in St ThomasH
High heat & humidity in October in St ThomasH
High heat & humidity in November in St ThomasH
Moderate heat & humidity in December in St ThomasM
Sea temperature
26°C sea temperature in January in St Thomas26
26°C sea temperature in February in St Thomas26
26°C sea temperature in March in St Thomas26
26°C sea temperature in April in St Thomas26
27°C sea temperature in May in St Thomas27
28°C sea temperature in June in St Thomas28
28°C sea temperature in July in St Thomas28
28°C sea temperature in August in St Thomas28
29°C sea temperature in September in St Thomas29
29°C sea temperature in October in St Thomas29
28°C sea temperature in November in St Thomas28
27°C sea temperature in December in St Thomas27

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
Daily hours of daylight
11 hours of daylight per day in January in St Thomas11
12 hours of daylight per day in February in St Thomas12
12 hours of daylight per day in March in St Thomas12
13 hours of daylight per day in April in St Thomas13
13 hours of daylight per day in May in St Thomas13
13 hours of daylight per day in June in St Thomas13
13 hours of daylight per day in July in St Thomas13
13 hours of daylight per day in August in St Thomas13
12 hours of daylight per day in September in St Thomas12
12 hours of daylight per day in October in St Thomas12
11 hours of daylight per day in November in St Thomas11
11 hours of daylight per day in December in St Thomas11
UV Index (Maximum)
UV (maximum) index 8 (Very High) in January in St Thomas8
UV (maximum) index 10 (Very High) in February in St Thomas10
UV (maximum) index 11+ (Extreme) in March in St Thomas11
UV (maximum) index 11+ (Extreme) in April in St Thomas11
UV (maximum) index 11+ (Extreme) in May in St Thomas11
UV (maximum) index 11+ (Extreme) in June in St Thomas11
UV (maximum) index 11+ (Extreme) in July in St Thomas11
UV (maximum) index 11+ (Extreme) in August in St Thomas11
UV (maximum) index 11+ (Extreme) in September in St Thomas11
UV (maximum) index 10 (Very High) in October in St Thomas10
UV (maximum) index 8 (Very High) in November in St Thomas8
UV (maximum) index 7 (High) in December in St Thomas7

Rainfall in St Thomas

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
14 days with some rainfall in January in St Thomas14
10 days with some rainfall in February in St Thomas10
10 days with some rainfall in March in St Thomas10
9 days with some rainfall in April in St Thomas9
12 days with some rainfall in May in St Thomas12
12 days with some rainfall in June in St Thomas12
14 days with some rainfall in July in St Thomas14
14 days with some rainfall in August in St Thomas14
16 days with some rainfall in September in St Thomas16
16 days with some rainfall in October in St Thomas16
15 days with some rainfall in November in St Thomas15
14 days with some rainfall in December in St Thomas14
Average monthly rainfall (mm)
68 mm monthly rainfall in January in St Thomas68
54 mm monthly rainfall in February in St Thomas54
57 mm monthly rainfall in March in St Thomas57
88 mm monthly rainfall in April in St Thomas88
129 mm monthly rainfall in May in St Thomas129
73 mm monthly rainfall in June in St Thomas73
85 mm monthly rainfall in July in St Thomas85
124 mm monthly rainfall in August in St Thomas124
143 mm monthly rainfall in September in St Thomas143
161 mm monthly rainfall in October in St Thomas161
161 mm monthly rainfall in November in St Thomas161
119 mm monthly rainfall in December in St Thomas119

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 28°C 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 68 mm of rainfall in the month.

  • 28°C maximum daytime temperature in January in St Thomas28
    28°C max day temperature
  • 8 hours of sunshine per day
  • 14 days with some rainfall in January in St Thomas14
    14 days with some rainfall
  • 21°C minimum night-time temperature in January in St Thomas21
    21°C min night temperature
  • 11 hours of daylight per day in January in St Thomas11
    11 hours of daylight per day
  • Moderate heat & humidity in January in St ThomasM
    Moderate heat & humidity
  • 68 mm monthly rainfall in January in St Thomas68
    68 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in January in St Thomas8
    8 (Very High) UV index
  • 26°C sea temperature in January in St Thomas26
    26°C sea temperature

Back to months

St Thomas weather in February

Expect daytime maximum temperatures of 28°C 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 54 mm of rainfall in the month.

  • 28°C maximum daytime temperature in February in St Thomas28
    28°C max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in February in St Thomas10
    10 days with some rainfall
  • 21°C minimum night-time temperature in February in St Thomas21
    21°C min night temperature
  • 12 hours of daylight per day in February in St Thomas12
    12 hours of daylight per day
  • Moderate heat & humidity in February in St ThomasM
    Moderate heat & humidity
  • 54 mm monthly rainfall in February in St Thomas54
    54 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in February in St Thomas10
    10 (Very High) UV index
  • 26°C sea temperature in February in St Thomas26
    26°C sea temperature

Back to months

St Thomas weather in March

Expect daytime maximum temperatures of 28°C 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 57 mm of rainfall in the month.

  • 28°C maximum daytime temperature in March in St Thomas28
    28°C max day temperature
  • 9 hours of sunshine per day
  • 10 days with some rainfall in March in St Thomas10
    10 days with some rainfall
  • 21°C minimum night-time temperature in March in St Thomas21
    21°C min night temperature
  • 12 hours of daylight per day in March in St Thomas12
    12 hours of daylight per day
  • Moderate heat & humidity in March in St ThomasM
    Moderate heat & humidity
  • 57 mm monthly rainfall in March in St Thomas57
    57 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in March in St Thomas11
    11+ (Extreme) UV index
  • 26°C sea temperature in March in St Thomas26
    26°C sea temperature

Back to months

St Thomas weather in April

Expect daytime maximum temperatures of 29°C 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 88 mm of rainfall in the month.

  • 29°C maximum daytime temperature in April in St Thomas29
    29°C max day temperature
  • 9 hours of sunshine per day
  • 9 days with some rainfall in April in St Thomas9
    9 days with some rainfall
  • 22°C minimum night-time temperature in April in St Thomas22
    22°C min night temperature
  • 13 hours of daylight per day in April in St Thomas13
    13 hours of daylight per day
  • Moderate heat & humidity in April in St ThomasM
    Moderate heat & humidity
  • 88 mm monthly rainfall in April in St Thomas88
    88 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in April in St Thomas11
    11+ (Extreme) UV index
  • 26°C sea temperature in April in St Thomas26
    26°C sea temperature

Back to months

St Thomas weather in May

Expect daytime maximum temperatures of 29°C 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 129 mm of rainfall in the month.

  • 29°C maximum daytime temperature in May in St Thomas29
    29°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in May in St Thomas12
    12 days with some rainfall
  • 23°C minimum night-time temperature in May in St Thomas23
    23°C min night temperature
  • 13 hours of daylight per day in May in St Thomas13
    13 hours of daylight per day
  • High heat & humidity in May in St ThomasH
    High heat & humidity
  • 129 mm monthly rainfall in May in St Thomas129
    129 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in St Thomas11
    11+ (Extreme) UV index
  • 27°C sea temperature in May in St Thomas27
    27°C sea temperature

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St Thomas weather in June

Expect daytime maximum temperatures of 30°C 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 73 mm of rainfall in the month.

  • 30°C maximum daytime temperature in June in St Thomas30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in June in St Thomas12
    12 days with some rainfall
  • 24°C minimum night-time temperature in June in St Thomas24
    24°C min night temperature
  • 13 hours of daylight per day in June in St Thomas13
    13 hours of daylight per day
  • High heat & humidity in June in St ThomasH
    High heat & humidity
  • 73 mm monthly rainfall in June in St Thomas73
    73 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in June in St Thomas11
    11+ (Extreme) UV index
  • 28°C sea temperature in June in St Thomas28
    28°C sea temperature

Back to months

St Thomas weather in July

Expect daytime maximum temperatures of 30°C 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 85 mm of rainfall in the month.

  • 30°C maximum daytime temperature in July in St Thomas30
    30°C max day temperature
  • 9 hours of sunshine per day
  • 14 days with some rainfall in July in St Thomas14
    14 days with some rainfall
  • 24°C minimum night-time temperature in July in St Thomas24
    24°C min night temperature
  • 13 hours of daylight per day in July in St Thomas13
    13 hours of daylight per day
  • High heat & humidity in July in St ThomasH
    High heat & humidity
  • 85 mm monthly rainfall in July in St Thomas85
    85 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in July in St Thomas11
    11+ (Extreme) UV index
  • 28°C sea temperature in July in St Thomas28
    28°C sea temperature

Back to months

St Thomas weather in August

Expect daytime maximum temperatures of 31°C 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 124 mm of rainfall in the month.

  • 31°C maximum daytime temperature in August in St Thomas31
    31°C max day temperature
  • 9 hours of sunshine per day
  • 14 days with some rainfall in August in St Thomas14
    14 days with some rainfall
  • 24°C minimum night-time temperature in August in St Thomas24
    24°C min night temperature
  • 13 hours of daylight per day in August in St Thomas13
    13 hours of daylight per day
  • High heat & humidity in August in St ThomasH
    High heat & humidity
  • 124 mm monthly rainfall in August in St Thomas124
    124 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in St Thomas11
    11+ (Extreme) UV index
  • 28°C sea temperature in August in St Thomas28
    28°C sea temperature

Back to months

St Thomas weather in September

Expect daytime maximum temperatures of 31°C 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 143 mm of rainfall in the month.

  • 31°C maximum daytime temperature in September in St Thomas31
    31°C max day temperature
  • 8 hours of sunshine per day
  • 16 days with some rainfall in September in St Thomas16
    16 days with some rainfall
  • 24°C minimum night-time temperature in September in St Thomas24
    24°C min night temperature
  • 12 hours of daylight per day in September in St Thomas12
    12 hours of daylight per day
  • High heat & humidity in September in St ThomasH
    High heat & humidity
  • 143 mm monthly rainfall in September in St Thomas143
    143 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in St Thomas11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in St Thomas29
    29°C sea temperature

Back to months

St Thomas weather in October

Expect daytime maximum temperatures of 30°C 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 161 mm of rainfall in the month.

  • 30°C maximum daytime temperature in October in St Thomas30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 16 days with some rainfall in October in St Thomas16
    16 days with some rainfall
  • 24°C minimum night-time temperature in October in St Thomas24
    24°C min night temperature
  • 12 hours of daylight per day in October in St Thomas12
    12 hours of daylight per day
  • High heat & humidity in October in St ThomasH
    High heat & humidity
  • 161 mm monthly rainfall in October in St Thomas161
    161 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in October in St Thomas10
    10 (Very High) UV index
  • 29°C sea temperature in October in St Thomas29
    29°C sea temperature

Back to months

St Thomas weather in November

Expect daytime maximum temperatures of 29°C 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 161 mm of rainfall in the month.

  • 29°C maximum daytime temperature in November in St Thomas29
    29°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in November in St Thomas15
    15 days with some rainfall
  • 23°C minimum night-time temperature in November in St Thomas23
    23°C min night temperature
  • 11 hours of daylight per day in November in St Thomas11
    11 hours of daylight per day
  • High heat & humidity in November in St ThomasH
    High heat & humidity
  • 161 mm monthly rainfall in November in St Thomas161
    161 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in November in St Thomas8
    8 (Very High) UV index
  • 28°C sea temperature in November in St Thomas28
    28°C sea temperature

Back to months

St Thomas weather in December

Expect daytime maximum temperatures of 28°C 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 119 mm of rainfall in the month.

  • 28°C maximum daytime temperature in December in St Thomas28
    28°C max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in December in St Thomas14
    14 days with some rainfall
  • 22°C minimum night-time temperature in December in St Thomas22
    22°C min night temperature
  • 11 hours of daylight per day in December in St Thomas11
    11 hours of daylight per day
  • Moderate heat & humidity in December in St ThomasM
    Moderate heat & humidity
  • 119 mm monthly rainfall in December in St Thomas119
    119 mm of monthly rainfall
  • UV (maximum) index 7 (High) in December in St Thomas7
    7 (High) UV index
  • 27°C sea temperature in December in St Thomas27
    27°C sea temperature

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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.

Tropical storm risk: St Thomas, Virgin Islands hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
2.2%
3.7%
1.5%
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Compare St Thomas weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for St Thomas, Virgin Islands and the UK (London).

Maximum daytime temperature (°C)

St Thomas, Virgin Islands
UK (London)
28
7
28
7
28
10
29
13
29
17
30
20
30
22
31
22
31
19
30
15
29
10
28
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

Compare more weather >>

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