Saint Helena States — Climate Month by Month
Compare all 3 subdivisions of Saint Helena, Ascension and Tristan da Cunha across the year.
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| Subdivision | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ascension | 21.6°C70.9°F 9 mm0.4″ | 22.1°C71.8°F 12 mm0.5″ | 22.1°C71.8°F 22 mm0.9″ | 21.6°C70.9°F 38 mm1.5″ | 20.6°C69.1°F 18 mm0.7″ | 19.2°C66.6°F 22 mm0.9″ | 18.5°C65.3°F 16 mm0.6″ | 18.6°C65.5°F 15 mm0.6″ | 18.6°C65.5°F 12 mm0.5″ | 19.4°C66.9°F 11 mm0.4″ | 19.9°C67.8°F 7 mm0.3″ | 20.7°C69.3°F 9 mm0.4″ |
| Saint Helena | — | — | — | — | — | — | — | — | — | — | — | — |
| Tristan da Cunha | 13.7°C56.7°F 174 mm6.9″ | 14.1°C57.4°F 156 mm6.1″ | 13.7°C56.7°F 204 mm8″ | 12.5°C54.5°F 205 mm8.1″ | 10.7°C51.3°F 222 mm8.7″ | 9.5°C49.1°F 238 mm9.4″ | 8.7°C47.7°F 203 mm8″ | 8.6°C47.5°F 227 mm8.9″ | 8.5°C47.3°F 219 mm8.6″ | 9.7°C49.5°F 233 mm9.2″ | 11.4°C52.5°F 206 mm8.1″ | 12.7°C54.9°F 212 mm8.3″ |
On mobile, scroll the table horizontally to see all months. Click a subdivision name for its full year-round view.
Frequently asked questions
Which state or province in Saint Helena, Ascension and Tristan da Cunha has the least rain?
Ascension is the driest state or province in Saint Helena, Ascension and Tristan da Cunha, with approximately 191 mm / 7.5 in of average annual rainfall.
Which state or province in Saint Helena, Ascension and Tristan da Cunha is warmest in July?
Ascension is the warmest state or province in Saint Helena, Ascension and Tristan da Cunha in July, with an average temperature of 18.5°C / 65.3°F.
Which state or province in Saint Helena, Ascension and Tristan da Cunha is warmest in January?
Ascension is the warmest state or province in Saint Helena, Ascension and Tristan da Cunha in January, with an average temperature of 21.6°C / 70.9°F.
Which state or province in Saint Helena, Ascension and Tristan da Cunha has the mildest year-round climate?
Ascension has the highest annual average temperature in Saint Helena, Ascension and Tristan da Cunha at 20.2°C / 68.4°F, while Tristan da Cunha has the lowest at 11.2°C / 52.2°F.
Which state or province in Saint Helena, Ascension and Tristan da Cunha has the most sunny months?
Ascension matches our sunny profiles (warm/mild with limited rain) for 12 months of the year — the most of any state or province in Saint Helena, Ascension and Tristan da Cunha.