Climate of Belfast, United Kingdom
Area-weighted average across Belfast. For where people actually live and travel, see the cities below.
Belfast, a subdivision of United Kingdom, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 3.6°C / 38.5°F in January to 15.4°C / 59.7°F in July, with rainfall from 60 mm / 2.4 in to 98 mm / 3.9 in depending on the season (957 mm / 37.7 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 3.6°C38.5°F | 97 mm3.8″ | — |
| February | 4.1°C39.4°F | 68 mm2.7″ | — |
| March | 5.8°C42.4°F | 79 mm3.1″ | — |
| April | 7.8°C46°F | 64 mm2.5″ | — |
| May | 10.8°C51.4°F | 60 mm2.4″ | — |
| June | 13.5°C56.3°F | 65 mm2.6″ | — |
| July | 15.4°C59.7°F | 70 mm2.8″ | — |
| August | 14.9°C58.8°F | 85 mm3.3″ | — |
| September | 12.4°C54.3°F | 88 mm3.5″ | — |
| October | 9.4°C48.9°F | 98 mm3.9″ | — |
| November | 6°C42.8°F | 91 mm3.6″ | — |
| December | 4.2°C39.6°F | 92 mm3.6″ | — |
Frequently asked questions
What is the best time to visit Belfast?
Belfast, United Kingdom does not have a clear sunny-and-dry window by our cutoffs. The warmest month is July at 15.4°C / 59.7°F, and the driest is May at 60 mm / 2.4 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Belfast?
Belfast, United Kingdom has area-weighted monthly average temperatures ranging from 3.6°C / 38.5°F in January to 15.4°C / 59.7°F in July. Annual rainfall averages about 957 mm / 37.7 in, with the wettest month being October (98 mm / 3.9 in) and the driest May (60 mm / 2.4 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Belfast?
The hottest month in Belfast is July, with an area-wide average temperature of 15.4°C / 59.7°F.
What is the coldest month in Belfast?
The coldest month in Belfast is January, with an area-wide average temperature of 3.6°C / 38.5°F.
When does it rain most in Belfast?
The wettest month in Belfast is October, averaging about 98 mm / 3.9 in of rainfall. The driest is May with about 60 mm / 2.4 in.