Climate of Ascension, Saint Helena
Area-weighted average across Ascension. For where people actually live and travel, see the cities below.
Ascension, a subdivision of Saint Helena, Ascension and Tristan da Cunha, has a mild oceanic climate on average. Area-weighted monthly temperatures across the whole territory range from 18.5°C / 65.3°F in July to 22.1°C / 71.8°F in February, with rainfall from 7 mm / 0.3 in to 38 mm / 1.5 in depending on the season (191 mm / 7.5 in total across the year).
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 21.6°C70.9°F | 9 mm0.4″ | Sunny & Warm, Sunny & Mild |
| February | 22.1°C71.8°F | 12 mm0.5″ | Sunny & Warm |
| March | 22.1°C71.8°F | 22 mm0.9″ | Sunny & Warm |
| April | 21.6°C70.9°F | 38 mm1.5″ | Sunny & Warm, Sunny & Mild |
| May | 20.6°C69.1°F | 18 mm0.7″ | Sunny & Warm, Sunny & Mild |
| June | 19.2°C66.6°F | 22 mm0.9″ | Sunny & Mild |
| July | 18.5°C65.3°F | 16 mm0.6″ | Sunny & Mild |
| August | 18.6°C65.5°F | 15 mm0.6″ | Sunny & Mild |
| September | 18.6°C65.5°F | 12 mm0.5″ | Sunny & Mild |
| October | 19.4°C66.9°F | 11 mm0.4″ | Sunny & Mild |
| November | 19.9°C67.8°F | 7 mm0.3″ | Sunny & Mild |
| December | 20.7°C69.3°F | 9 mm0.4″ | Sunny & Warm, Sunny & Mild |
Frequently asked questions
What is the best time to visit Ascension?
The best months to visit Ascension, Saint Helena, Ascension and Tristan da Cunha for sunny, dry weather are January, February, March, April, May, June, July, August, September, October, November, December. The warmest month is February at an area-wide average of 22.1°C / 71.8°F, and the driest is November with about 7 mm / 0.3 in of rainfall.
What is the climate of Ascension?
Ascension, Saint Helena, Ascension and Tristan da Cunha has area-weighted monthly average temperatures ranging from 18.5°C / 65.3°F in July to 22.1°C / 71.8°F in February. Annual rainfall averages about 191 mm / 7.5 in, with the wettest month being April (38 mm / 1.5 in) and the driest November (7 mm / 0.3 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Ascension?
The hottest month in Ascension is February, with an area-wide average temperature of 22.1°C / 71.8°F.
What is the coldest month in Ascension?
The coldest month in Ascension is July, with an area-wide average temperature of 18.5°C / 65.3°F.
When does it rain most in Ascension?
The wettest month in Ascension is April, averaging about 38 mm / 1.5 in of rainfall. The driest is November with about 7 mm / 0.3 in.