Belfast weather forecast: light showers and cool temperatures expected September 15

Belfast residents can expect a day of mixed weather, with the possibility of light showers and a generally cool temperature. The day begins with a chance of rain, though it is not expected to be heavy. Temperatures will remain moderate, offering a mild experience for those venturing outdoors.Belfast Weather TodayToday, September 15, 2026, Belfast will experience a day characterized by light showers and a moderate temperature range. The maximum temperature is forecast to reach 17°C, while the minimum temperature will be around 12°C. The average temperature for the day is expected to be 14.5°C. There is a 20% chance of rain, and the humidity levels are predicted to be high, averaging 87%. Wind speeds could reach up to 46.67 kph, contributing to a brisk feel. The sky is likely to be partly cloudy with intermittent sunshine.Light Showers Expected: Carry an UmbrellaWith the forecast indicating light showers and high humidity, residents of Belfast are advised to carry an umbrella or wear waterproof clothing when heading out. The moderate temperatures mean that heavy winter wear is not necessary, but a light jacket or sweater would be advisable for comfort, especially in the morning and evening. The chance of rain, while not high, is present throughout the day, so being prepared will ensure a more comfortable experience. The wind, though not excessively strong, could make the air feel cooler, so layering clothing is a practical approach to managing the day's conditions.Belfast Weather for Upcoming 7 DaysThe weather in Belfast is set to remain relatively consistent over the next seven days, with a mix of cloudy spells and chances of light rain. Following today's conditions, tomorrow, September 16, is expected to be characterized by sunny intervals with a maximum temperature of 17°C and a minimum of 11°C. September 17 will see a return to light showers, with temperatures similar to today, peaking at 16°C and dropping to 11°C. The forecast for September 18 suggests light rain, with a high of 17°C and a low of 13°C. The latter half of the week appears to offer some improvement, with September 19 predicted to have sunny intervals and a high of 17°C. September 20 is forecast to be cloudy with a high of 17°C and a low of 14°C. The week concludes with September 21, which is expected to be cloudy with a warmer high of 20°C and a low of 14°C.DateMax Temp (C)Min Temp (C)Avg Temp (C)Condition2026-09-15171214.5Light showers2026-09-16171114.0Sunny intervals2026-09-17161113.5Light showers2026-09-18171315.0Light rain2026-09-19171214.5Sunny intervals2026-09-20171415.5Cloudy2026-09-21201417.0CloudyThe week ahead in Belfast will see a continuation of mild temperatures with intermittent chances of rain, offering a generally stable weather pattern.Source: Data referenced in this article is taken from the latest World News and Live updates. Download the TOI app.