Belfast weather in April
Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Poor
Best time to visit: June – August
What is the weather like in Belfast in April?
In April, Belfast is cool: daytime highs average 10 °C, and nights cool down to about 6 °C. The sea averages 8.4 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 61 mm in total. All in all, April is not an ideal month for a holiday in Belfast.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 14 h 1 min06:24 – 20:24
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 24 km/haverage daily peakAll months
- Cloud cover
- 67 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+1Europe/London
How the score comes together
- Temperatureweight 50 %24 %
- Sunshineweight 20 %38 %
- Few rainy daysweight 30 %39 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in April
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Belfast in April: quick answers
Is Belfast hot in April?
No. In April, Belfast is cool: daytime highs average 10 °C and nights drop to about 6 °C.
Can you swim in Belfast in April?
Only if you don't mind cold water: in April the sea averages just 8.4 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Belfast in April?
Rain is frequent, with about 13 rainy days and 61 mm in total.
Belfast month by month
The whole year in BelfastAll destinations: United KingdomWhere to go in AprilSea temperature in April
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences