Belfast weather today: Sunny intervals expected with mild temperatures up to 20°C

Belfast is set for a day of mixed weather, with sunny intervals expected to dominate the skies. While the day will offer periods of sunshine, residents should be prepared for a generally cloudy atmosphere. Temperatures will be mild, making for a comfortable day overall, though a slight chance of showers could impact outdoor plans.Belfast Weather TodayToday, September 22, 2026, Belfast will experience a day characterized by sunny intervals. The maximum temperature is forecast to reach 20°C, while the minimum temperature will be around 12°C. The average temperature for the day is expected to be 16.0°C. Humidity levels are predicted to be relatively high, at 87%, which may make the air feel a bit damp. There is a low chance of rain, with the daily chance of rain indicated as less than 5%. Wind speeds could reach up to 25.75 kph, adding a slight breeze to the day. The overall condition is described as 'Sunny intervals', suggesting a mix of sunshine and cloud cover throughout the day.Expect a day of pleasant but changeable conditionsResidents of Belfast can anticipate a day where outdoor activities are generally feasible, but with a need to be prepared for potential shifts in weather. The combination of sunny intervals and mild temperatures means that while sunshine will be present, cloud cover will also be a feature. The low chance of rain means that umbrellas are unlikely to be essential, but it's always wise to keep an eye on the sky. The moderate wind speeds will provide a gentle breeze, not strong enough to cause significant disruption. The high humidity might make the air feel a little close at times, but overall, it should be a comfortable day for most activities. Planning for a day with periods of sunshine interspersed with cloud is advisable.Belfast Weather for Upcoming 7 DaysDateMax Temp (°C)Min Temp (°C)Avg Temp (°C)Condition2026-09-22201216.0Sunny intervals2026-09-23161013.0Sunny intervals2026-09-24171214.5Cloudy2026-09-25161013.0Cloudy2026-09-26171214.5Sunny intervals2026-09-27161214.0Light showers2026-09-28161214.0Sunny intervalsLooking ahead, Belfast can expect a continuation of mixed weather patterns over the next seven days. Following today's mild conditions with sunny intervals, tomorrow, September 23rd, will see a slight dip in temperatures, with a maximum of 16°C and a minimum of 10°C, under continued sunny intervals. The latter half of the week will bring more cloud cover, with cloudy conditions expected on September 24th and 25th. Temperatures will hover around the mid-teens, with highs of 17°C and lows of 10-12°C. The week will see a return to sunny intervals on September 26th, followed by a chance of light showers on September 27th, before clearing to sunny intervals again on September 28th. Overall, the week ahead suggests a period of mild temperatures with a variable mix of sunshine and cloud, and a possibility of light rain towards the end of the period.Source: Data referenced in this article is taken from the latest World News and Live updates. Download the TOI app.