Belfast residents can expect a day of mixed weather, with sunny intervals and a comfortable average temperature. The day begins with a pleasant start, transitioning through periods of sunshine and cloud cover. the overall conditions suggest a day suitable for most outdoor activities, though a light jacket might be advisable for cooler moments While there is a low chance of rain.
Source: Data referenced in this article is taken from https://www.metoffice.gov.uk
Today, September 11, 2026, Belfast will experience a day characterized by sunny intervals. The maximum temperature is forecast to reach 18°C, while the minimum temperature will be around 13°C, resulting in an average temperature of 15.5°C. The wind is expected to reach a maximum speed of 35.41 kph. Humidity levels will be around 75%, contributing to a generally comfortable atmosphere. The daily chance of rain is less than 5%, indicating a very low likelihood of precipitation. The combination of sunshine and a moderate average temperature of 15.5°C makes it an ideal day for outdoor pursuits. Temperatures are expected to fluctuate, with a peak of 21°C on September 12th and a low of 11°C on September 17th.
With sunny intervals expected throughout the day and mild temperatures, residents should prepare for a pleasant September day. The weather in Belfast is set to remain varied over the next seven days, with a mix of overcast skies, sunny intervals, and cloudy conditions.