Tristan da Cunha weather by month

Check out Tristan da Cunha weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Tristan da Cunha (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
18°C maximum daytime temperature in January in Tristan da Cunha18
19°C maximum daytime temperature in February in Tristan da Cunha19
19°C maximum daytime temperature in March in Tristan da Cunha19
17°C maximum daytime temperature in April in Tristan da Cunha17
15°C maximum daytime temperature in May in Tristan da Cunha15
14°C maximum daytime temperature in June in Tristan da Cunha14
13°C maximum daytime temperature in July in Tristan da Cunha13
13°C maximum daytime temperature in August in Tristan da Cunha13
13°C maximum daytime temperature in September in Tristan da Cunha13
14°C maximum daytime temperature in October in Tristan da Cunha14
16°C maximum daytime temperature in November in Tristan da Cunha16
17°C maximum daytime temperature in December in Tristan da Cunha17
Min temperature (night-time)
13°C minimum night-time temperature in January in Tristan da Cunha13
14°C minimum night-time temperature in February in Tristan da Cunha14
14°C minimum night-time temperature in March in Tristan da Cunha14
13°C minimum night-time temperature in April in Tristan da Cunha13
11°C minimum night-time temperature in May in Tristan da Cunha11
10°C minimum night-time temperature in June in Tristan da Cunha10
9°C minimum night-time temperature in July in Tristan da Cunha9
9°C minimum night-time temperature in August in Tristan da Cunha9
9°C minimum night-time temperature in September in Tristan da Cunha9
10°C minimum night-time temperature in October in Tristan da Cunha10
11°C minimum night-time temperature in November in Tristan da Cunha11
12°C minimum night-time temperature in December in Tristan da Cunha12
Heat & Humidity
No heat & humidity in January in Tristan da Cunha0
No heat & humidity in February in Tristan da Cunha0
No heat & humidity in March in Tristan da Cunha0
No heat & humidity in April in Tristan da Cunha0
No heat & humidity in May in Tristan da Cunha0
No heat & humidity in June in Tristan da Cunha0
No heat & humidity in July in Tristan da Cunha0
No heat & humidity in August in Tristan da Cunha0
No heat & humidity in September in Tristan da Cunha0
No heat & humidity in October in Tristan da Cunha0
No heat & humidity in November in Tristan da Cunha0
No heat & humidity in December in Tristan da Cunha0
Sea temperature
17°C sea temperature in January in Tristan da Cunha17
18°C sea temperature in February in Tristan da Cunha18
18°C sea temperature in March in Tristan da Cunha18
17°C sea temperature in April in Tristan da Cunha17
16°C sea temperature in May in Tristan da Cunha16
14°C sea temperature in June in Tristan da Cunha14
14°C sea temperature in July in Tristan da Cunha14
13°C sea temperature in August in Tristan da Cunha13
13°C sea temperature in September in Tristan da Cunha13
14°C sea temperature in October in Tristan da Cunha14
15°C sea temperature in November in Tristan da Cunha15
16°C sea temperature in December in Tristan da Cunha16

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

Sunshine & Daylight in Tristan da Cunha

  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 Tristan da Cunha14
13 hours of daylight per day in February in Tristan da Cunha13
12 hours of daylight per day in March in Tristan da Cunha12
11 hours of daylight per day in April in Tristan da Cunha11
10 hours of daylight per day in May in Tristan da Cunha10
10 hours of daylight per day in June in Tristan da Cunha10
10 hours of daylight per day in July in Tristan da Cunha10
11 hours of daylight per day in August in Tristan da Cunha11
12 hours of daylight per day in September in Tristan da Cunha12
13 hours of daylight per day in October in Tristan da Cunha13
14 hours of daylight per day in November in Tristan da Cunha14
15 hours of daylight per day in December in Tristan da Cunha15
UV Index (Maximum)
UV (maximum) index 11+ (Extreme) in January in Tristan da Cunha11
UV (maximum) index 10 (Very High) in February in Tristan da Cunha10
UV (maximum) index 8 (Very High) in March in Tristan da Cunha8
UV (maximum) index 5 (Moderate) in April in Tristan da Cunha5
UV (maximum) index 3 (Moderate) in May in Tristan da Cunha3
UV (maximum) index 2 (Low) in June in Tristan da Cunha2
UV (maximum) index 2 (Low) in July in Tristan da Cunha2
UV (maximum) index 3 (Moderate) in August in Tristan da Cunha3
UV (maximum) index 5 (Moderate) in September in Tristan da Cunha5
UV (maximum) index 7 (High) in October in Tristan da Cunha7
UV (maximum) index 10 (Very High) in November in Tristan da Cunha10
UV (maximum) index 11 (Extreme) in December in Tristan da Cunha11

Rainfall in Tristan da Cunha

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
16 days with some rainfall in January in Tristan da Cunha16
13 days with some rainfall in February in Tristan da Cunha13
18 days with some rainfall in March in Tristan da Cunha18
18 days with some rainfall in April in Tristan da Cunha18
21 days with some rainfall in May in Tristan da Cunha21
23 days with some rainfall in June in Tristan da Cunha23
22 days with some rainfall in July in Tristan da Cunha22
22 days with some rainfall in August in Tristan da Cunha22
19 days with some rainfall in September in Tristan da Cunha19
19 days with some rainfall in October in Tristan da Cunha19
15 days with some rainfall in November in Tristan da Cunha15
17 days with some rainfall in December in Tristan da Cunha17
Average monthly rainfall (mm)
115 mm monthly rainfall in January in Tristan da Cunha115
88 mm monthly rainfall in February in Tristan da Cunha88
127 mm monthly rainfall in March in Tristan da Cunha127
144 mm monthly rainfall in April in Tristan da Cunha144
140 mm monthly rainfall in May in Tristan da Cunha140
192 mm monthly rainfall in June in Tristan da Cunha192
133 mm monthly rainfall in July in Tristan da Cunha133
155 mm monthly rainfall in August in Tristan da Cunha155
135 mm monthly rainfall in September in Tristan da Cunha135
136 mm monthly rainfall in October in Tristan da Cunha136
123 mm monthly rainfall in November in Tristan da Cunha123
115 mm monthly rainfall in December in Tristan da Cunha115

More about Tristan da Cunha

Tristan da Cunha by month

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

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The climate guide for St Helena & Islands (Tristan da Cunha) 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 Tristan da Cunha?

Tristan da Cunha has a temperate climate with warm summers and some rainfall in all months.

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

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Compare Tristan da Cunha with the USA

Below the Tristan da Cunha chart shows average maximum daytime temperature for Tristan da Cunha, St Helena, Ascension and Tristan da Cunha and the USA (Washington).

Maximum daytime temperature (°C)

Tristan da Cunha, St Helena, Ascension and Tristan da Cunha
USA (Washington)
18
5
19
7
19
13
17
19
15
24
14
29
13
31
13
30
13
26
14
20
16
14
17
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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