Weather in Saint Helena, Ascension and Tristan da Cunha 🇸🇭
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Current Weather Conditions: Top Cities in Saint Helena, Ascension and Tristan da Cunha
Weather in Saint Helena, Ascension and Tristan da Cunha — FAQ
Common questions about forecasts, units, and sources for Saint Helena, Ascension and Tristan da Cunha.
What is the weather like in Saint Helena, Ascension and Tristan da Cunha right now?
Live weather observations and 14-day forecasts are shown above for 1 city(ies) across Saint Helena, Ascension and Tristan da Cunha. Click any city for full hourly + daily details.
How are forecasts for Saint Helena, Ascension and Tristan da Cunha produced?
Forecasts come from WeatherAPI.com — a commercial provider aggregating data from national meteorological agencies. In Saint Helena, Ascension and Tristan da Cunha the underlying source is the national weather service plus global model output (ECMWF, GFS, etc.).
How often does the weather data refresh?
Current conditions refresh every 15-60 minutes. The hourly forecast updates roughly every hour. The 7- and 14-day outlook is recomputed several times per day as new observations arrive.
What units are used on this page?
Temperatures are in degrees Celsius (°C), wind speed in km/h, precipitation in millimetres, and pressure in hPa (mbar). Conversions are available on the per-city pages.