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The best time to visit Belfast
May, June, July, August and September — daytime highs around 17°C. Every number on this page is measured, not guessed.
Belfast month by month
| Month | Day | Night | Wet days | |
|---|---|---|---|---|
| January | 7°C | 3°C | 10 | |
| February | 8°C | 4°C | 14 | |
| March | 10°C | 4°C | 15 | |
| April | 11°C | 4°C | 13 | Shoulder |
| May | 14°C | 7°C | 15 | Best |
| June | 18°C | 11°C | 13 | Best |
| July | 19°C | 12°C | 16 | Best |
| August | 19°C | 12°C | 17 | Best |
| September | 17°C | 11°C | 15 | Best |
| October | 14°C | 9°C | 19 | Shoulder |
| November | 10°C | 6°C | 13 | |
| December | 8°C | 4°C | 15 |
The short version
Warmest: July, around 19°C by day. Coolest: January, around 7°C by day and 3°C at night. Wettest: October with about 19 wet days. Driest: January with about 10.
If you want fewer people: April, October sit right beside the best months. The weather is close and the crowds are not.
Book it for those months
Prices climb as the good months fill up.
Common questions
When is the best time to visit Belfast?
The best months are May, June, July, August and September, when daytime highs sit around 17°C.
What is the hottest month in Belfast?
July, with daytime highs around 19°C.
What is the wettest month in Belfast?
October, with about 19 wet days. The driest is January with about 10.
When is the cheapest time to visit Belfast?
Prices follow the weather. The months either side of the best ones — April, October — are usually cheaper with similar conditions.
Temperatures and wet days are measured, not estimated: ERA5 reanalysis for 2021-2023, at Belfast, Northern Ireland. Source: Open-Meteo. Hotel and activity links are partner links — the price you pay is the same.