The weather in Belfast is always unpredictable, but that’s part of the charm, right? Do you want to know what the forecast is for today and tomorrow? Well, you’ve come to the right place.
Weather Forecast Today - Belfast - Friday 29th September 2023
It will be partly cloudy in Belfast today. Peak temperature should be approximately 17°C (but it will feel like 15°C due to the wind chill factor).
The probability of rain today is around 31%. Humidity today will be around 67%.
The UV Index today is 3 (moderate). Sun protection is recommended. You should stay in the shade at midday.
The visibility level today is expected to be very good. From a good vantage point, you should be able to see for 20 to 40 km (12.4 to 24.9 miles). The wind speed today (noon) will be approximately 16 mph (moderate breeze), blowing west south west.
Weather Forecast Tonight - Belfast - Friday 29th September 2023
It will be cloudy in Belfast tonight. The minimum temperature at night is going to be 10°C (but it is going to feel like 10°C).
There is only a small chance of rain tonight (5% to be precise). Humidity will be around 86%.
The wind speed this evening will be approximately 2 mph (light air), blowing south south west.
Weather Forecast Tomorrow - Belfast - Saturday 30th September 2023
The rain will be bucketing down in Belfast tomorrow. The highest temperature in the daytime is forecast to be 14°C (it will feel like 13 °C).
There is a high probability of rain (97%). Take a coat if you are planning on spending time outdoors. The humidity level tomorrow will be roughly 84%.
A low UV Index of 1 is expected.
The visibility tomorrow will be good. You should be able to see places as far as 10 to 20 km away (6.2 to 12.4 miles).
The wind speed at midday should be approximately 9 mph (gentle breeze), blowing south south east.
5-Day Forecast For Belfast
A 5-day weather forecast for Belfast is shown in the table below.
Date | Weather Type | Day Max Temp (°C) | Night Min Temp (°C) | Chance of Rain (%) | Wind Speed (mph) | Max UV |
---|---|---|---|---|---|---|
Friday 29th September - Day | Partly Cloudy | 17 | - | 31 | 16 | 3 |
Friday 29th September - Night | Cloudy | - | 10 | 5 | 2 | - |
Saturday 30th September - Day | Heavy Rain | 14 | - | 97 | 9 | 1 |
Saturday 30th September - Night | Cloudy | - | 13 | 48 | 7 | - |
Sunday 1st October - Day | Partly Cloudy | 18 | - | 8 | 9 | 3 |
Sunday 1st October - Night | Cloudy | - | 11 | 3 | 9 | - |
Monday 2nd October - Day | Cloudy | 16 | - | 13 | 13 | 2 |
Monday 2nd October - Night | Partly Cloudy | - | 10 | 4 | 11 | - |
Tuesday 3rd October - Day | Partly Cloudy | 15 | - | 31 | 16 | 3 |
Tuesday 3rd October - Night | Cloudy | - | 10 | 5 | 9 | - |
Forecast - Location Details
The weather forecast for Belfast is based on data provided by the Met Office for the location shown on the map below. The weather in other areas of Belfast may vary slightly.

Sunrise and Sunset Times
Sunrise and sunset times in Belfast can be found here.
Weather in Other Areas of the UK
Current conditions and 5-day weather forecasts for other areas of the United Kingdom and Northern Ireland can be found here.