Belfast’s November weather: 9.8°C highs and 90 mm of rain
Belfast in November averages 9.8°C highs and 5.4°C lows, with around 90 mm of rain over 14 rainy days. Use this historical context for planning—check today’s forecast for what to expect.
Historical averages offer a guide to Belfast’s seasonal weather, not a forecast for today or tomorrow. For immediate travel or outdoor plans, check a current forecast and any active weather warnings.
Belfast weather: temperature and rainfall averages
In November, Belfast’s average high is 9.8°C and its average low is 5.4°C. Average rainfall is 90 mm, with 14.1 rainy days. These figures cover October 2016 to September 2026 and come from the Open-Meteo archive (ERA5, Copernicus).

Across the same ten-year period, the highest recorded temperature was 28.1°C, while the lowest was -4.6°C. These are the highest and lowest figures in the archive, not typical November temperatures.
Weather in Belfast through the seasons
Monthly average highs range from 7.1°C in January to 18.9°C in July. They then fall to 18.4°C in August and 16.2°C in September. These monthly figures provide a seasonal comparison rather than a prediction for a particular day.
In September 2026, the average high was 17.5°C, or 1.3°C above the September average. That comparison relates to September 2026 and should not be read as a figure for the current month.
Belfast weather forecast: do not mistake averages for tomorrow
For the weather forecast in Belfast tomorrow, use a dated forecast rather than historical temperatures. The figures here do not report current rain, wind, feels-like temperatures or weather warnings. For tomorrow’s conditions, check the Met Office Belfast forecast and select the city reading rather than an airport forecast.
Monthly rainfall is an accumulated total, not a guide to when rain will fall. A 90 mm average cannot show whether a particular journey will be dry. Use these averages for seasonal context and check a current forecast for conditions during the hours you plan to be outside.