Belfast weather in April
April in Belfast: cool, a little rain, with clean air — a great time to visit.
#6 of 12 months in Belfast · #486 of 897 destinations to visit in April · comfort 79/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Belfast in April
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Belfast climate normals — April
| Daytime high | 11°C / 52°F | 🙂 cool |
|---|---|---|
| Nighttime low | 6°C / 43°F | |
| Rainfall | 51 mm / 2 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 6°C / 42°F | |
| Sunshine | 9.4 h/day | |
| Daylight | 14.1 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Belfast in April — FAQ
- Is April a good time to visit Belfast?
- April in Belfast: cool, a little rain, with clean air — a great time to visit. It ranks #6 of 12 months for Belfast on SeasonMap's comfort score (79/100).
- What is the weather like in Belfast in April?
- In April, Belfast averages a daily high of 11°C and a low of 6.2°C, with about 51 mm of rain over roughly 11 rainy days.
- What is the air quality in Belfast in April?
- Belfast has a mean US Air Quality Index of about 39 in April.