St Helena & Islands climate guide

Temperature in St Helena & Islands (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
22°C maximum daytime temperature in January in St Helena & Islands (St Helena)22
23°C maximum daytime temperature in February in St Helena & Islands (St Helena)23
23°C maximum daytime temperature in March in St Helena & Islands (St Helena)23
22°C maximum daytime temperature in April in St Helena & Islands (St Helena)22
21°C maximum daytime temperature in May in St Helena & Islands (St Helena)21
19°C maximum daytime temperature in June in St Helena & Islands (St Helena)19
18°C maximum daytime temperature in July in St Helena & Islands (St Helena)18
17°C maximum daytime temperature in August in St Helena & Islands (St Helena)17
18°C maximum daytime temperature in September in St Helena & Islands (St Helena)18
18°C maximum daytime temperature in October in St Helena & Islands (St Helena)18
19°C maximum daytime temperature in November in St Helena & Islands (St Helena)19
20°C maximum daytime temperature in December in St Helena & Islands (St Helena)20
Min temperature (night-time)
18°C minimum night-time temperature in January in St Helena & Islands (St Helena)18
19°C minimum night-time temperature in February in St Helena & Islands (St Helena)19
19°C minimum night-time temperature in March in St Helena & Islands (St Helena)19
18°C minimum night-time temperature in April in St Helena & Islands (St Helena)18
17°C minimum night-time temperature in May in St Helena & Islands (St Helena)17
16°C minimum night-time temperature in June in St Helena & Islands (St Helena)16
15°C minimum night-time temperature in July in St Helena & Islands (St Helena)15
14°C minimum night-time temperature in August in St Helena & Islands (St Helena)14
15°C minimum night-time temperature in September in St Helena & Islands (St Helena)15
15°C minimum night-time temperature in October in St Helena & Islands (St Helena)15
15°C minimum night-time temperature in November in St Helena & Islands (St Helena)15
16°C minimum night-time temperature in December in St Helena & Islands (St Helena)16
Sea temperature
23°C sea temperature in January in St Helena & Islands (St Helena)23
24°C sea temperature in February in St Helena & Islands (St Helena)24
25°C sea temperature in March in St Helena & Islands (St Helena)25
25°C sea temperature in April in St Helena & Islands (St Helena)25
24°C sea temperature in May in St Helena & Islands (St Helena)24
23°C sea temperature in June in St Helena & Islands (St Helena)23
21°C sea temperature in July in St Helena & Islands (St Helena)21
21°C sea temperature in August in St Helena & Islands (St Helena)21
20°C sea temperature in September in St Helena & Islands (St Helena)20
20°C sea temperature in October in St Helena & Islands (St Helena)20
21°C sea temperature in November in St Helena & Islands (St Helena)21
22°C sea temperature in December in St Helena & Islands (St Helena)22

Sunshine & Daylight in St Helena & Islands

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
13 hours of daylight per day in January in St Helena & Islands (St Helena)13
13 hours of daylight per day in February in St Helena & Islands (St Helena)13
12 hours of daylight per day in March in St Helena & Islands (St Helena)12
12 hours of daylight per day in April in St Helena & Islands (St Helena)12
11 hours of daylight per day in May in St Helena & Islands (St Helena)11
11 hours of daylight per day in June in St Helena & Islands (St Helena)11
11 hours of daylight per day in July in St Helena & Islands (St Helena)11
12 hours of daylight per day in August in St Helena & Islands (St Helena)12
12 hours of daylight per day in September in St Helena & Islands (St Helena)12
12 hours of daylight per day in October in St Helena & Islands (St Helena)12
13 hours of daylight per day in November in St Helena & Islands (St Helena)13
13 hours of daylight per day in December in St Helena & Islands (St Helena)13

Rainfall in St Helena & Islands

  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 Helena & Islands (St Helena)14
14 days with some rainfall in February in St Helena & Islands (St Helena)14
15 days with some rainfall in March in St Helena & Islands (St Helena)15
15 days with some rainfall in April in St Helena & Islands (St Helena)15
14 days with some rainfall in May in St Helena & Islands (St Helena)14
16 days with some rainfall in June in St Helena & Islands (St Helena)16
16 days with some rainfall in July in St Helena & Islands (St Helena)16
15 days with some rainfall in August in St Helena & Islands (St Helena)15
12 days with some rainfall in September in St Helena & Islands (St Helena)12
14 days with some rainfall in October in St Helena & Islands (St Helena)14
13 days with some rainfall in November in St Helena & Islands (St Helena)13
12 days with some rainfall in December in St Helena & Islands (St Helena)12
Average monthly rainfall (mm)
53 mm monthly rainfall in January in St Helena & Islands (St Helena)53
68 mm monthly rainfall in February in St Helena & Islands (St Helena)68
90 mm monthly rainfall in March in St Helena & Islands (St Helena)90
63 mm monthly rainfall in April in St Helena & Islands (St Helena)63
71 mm monthly rainfall in May in St Helena & Islands (St Helena)71
87 mm monthly rainfall in June in St Helena & Islands (St Helena)87
84 mm monthly rainfall in July in St Helena & Islands (St Helena)84
68 mm monthly rainfall in August in St Helena & Islands (St Helena)68
54 mm monthly rainfall in September in St Helena & Islands (St Helena)54
43 mm monthly rainfall in October in St Helena & Islands (St Helena)43
30 mm monthly rainfall in November in St Helena & Islands (St Helena)30
37 mm monthly rainfall in December in St Helena & Islands (St Helena)37

More climate for St Helena & Islands

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 11+ (Extreme) in January in St Helena & Islands (St Helena)11
UV (maximum) index 11+ (Extreme) in February in St Helena & Islands (St Helena)11
UV (maximum) index 11+ (Extreme) in March in St Helena & Islands (St Helena)11
UV (maximum) index 11 (Extreme) in April in St Helena & Islands (St Helena)11
UV (maximum) index 9 (Very High) in May in St Helena & Islands (St Helena)9
UV (maximum) index 7 (High) in June in St Helena & Islands (St Helena)7
UV (maximum) index 8 (Very High) in July in St Helena & Islands (St Helena)8
UV (maximum) index 9 (Very High) in August in St Helena & Islands (St Helena)9
UV (maximum) index 11 (Extreme) in September in St Helena & Islands (St Helena)11
UV (maximum) index 11+ (Extreme) in October in St Helena & Islands (St Helena)11
UV (maximum) index 11+ (Extreme) in November in St Helena & Islands (St Helena)11
UV (maximum) index 11+ (Extreme) in December in St Helena & Islands (St Helena)11
Heat & Humidity
No heat & humidity in January in St Helena & Islands (St Helena)0
No heat & humidity in February in St Helena & Islands (St Helena)0
No heat & humidity in March in St Helena & Islands (St Helena)0
No heat & humidity in April in St Helena & Islands (St Helena)0
No heat & humidity in May in St Helena & Islands (St Helena)0
No heat & humidity in June in St Helena & Islands (St Helena)0
No heat & humidity in July in St Helena & Islands (St Helena)0
No heat & humidity in August in St Helena & Islands (St Helena)0
No heat & humidity in September in St Helena & Islands (St Helena)0
No heat & humidity in October in St Helena & Islands (St Helena)0
No heat & humidity in November in St Helena & Islands (St Helena)0
No heat & humidity in December in St Helena & Islands (St Helena)0

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

  • Top deals & discounts
  • St Helena & Islands weather overview
  • More destinations
  • Best time to go to St Helena & Islands
  • St Helena & Islands 5-day weather forecast
  • St Helena & Islands weather today - current conditions (last 24-hours)

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

The climate guide for St Helena & Islands, St Helena & Islands 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.

  • Compare car hire prices to find lowest rate
  • Free cancellation up to 48 hours before pick up
  • Book car hire for over 20,000 destinations worldwide

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

Back to top

Where's hot in St Helena & Islands?

Below are average maximum temperatures at popular destinations in St Helena & Islands for next month - October. Select a destination to see the climate guide for all months of the year.

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.