Belfast weather by month & the best time to visit
🇬🇧 United Kingdom · city break · oceanic / maritime climate
The best time to visit Belfast is July — its sunniest month (Sunshine Score 56/100), with August and June close behind. Belfast averages about 1,263 hours of sunshine a year. Daytime highs around 18°C / 64°F and roughly 99 mm of rain in July.
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- Sun hours / year
- 1,263
- Sunniest month
- July
- Peak score
- 56/100
- Rain / year
- 1,068 mm
- Midday UV at peak
- 4 (moderate)
- Population
- 450k
- Elevation
- 68 m
When is the best time to visit Belfast?
For sunshine, the best time to visit Belfast is July, then August and June. The dullest month is January (0/100, 93 mm of rain). The full month-by-month picture is in the table below.
How sunny is Belfast?
Belfast isn't a sunny place by world standards: about 1,263 hours of sunshine a year. 56 Sunshine Score points separate July (56) from January (0), so the month you pick matters. It ranks #35 of 48 destinations in United Kingdom for annual sunshine, below the national median of 1,345 hours. The year's 1,068 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 6° / 43°F | 3° / 37°F | 93 mm | 0 |
| February | 0 | 7° / 45°F | 2° / 36°F | 74 mm | 1 |
| March | 0 | 8° / 46°F | 3° / 37°F | 76 mm | 1 |
| April | 19 | 11° / 52°F | 5° / 41°F | 62 mm | 3 |
| May | 36 | 14° / 57°F | 7° / 45°F | 77 mm | 4 |
| June | 52 | 17° / 63°F | 10° / 50°F | 90 mm | 4 |
| July | 56 | 18° / 64°F | 11° / 52°F | 99 mm | 4 |
| August | 55 | 18° / 64°F | 11° / 52°F | 106 mm | 3 |
| September | 47 | 16° / 61°F | 10° / 50°F | 82 mm | 2 |
| October | 27 | 13° / 55°F | 8° / 46°F | 109 mm | 1 |
| November | 6 | 9° / 48°F | 5° / 41°F | 105 mm | 0 |
| December | 0 | 7° / 45°F | 3° / 37°F | 95 mm | 0 |
See Belfast on the interactive sunshine globe →
Nearby places for sunshine
- Castletown Isle of Man · 121 km · best in Jul · 1,459 h sun/yr
- Dublin Ireland · 137 km · best in Jul · 1,488 h sun/yr
- Glasgow United Kingdom · 140 km · best in Jul · 1,304 h sun/yr
- Glasgow United Kingdom · 176 km · best in Jul · 1,306 h sun/yr
- Charlestown Ireland · 188 km · best in Jul · 1,412 h sun/yr
- Edinburgh United Kingdom · 230 km · best in Jul · 1,292 h sun/yr
Nearest destinations
- Derry United Kingdom · 74 km · 1,326 h sun/yr · best in Jul
- Campbeltown United Kingdom · 93 km · 1,303 h sun/yr · best in Jul
- Isle of Islay, Argyll and Bute United Kingdom · 114 km · 1,329 h sun/yr · best in Jul
Head-to-head
How Belfast compares month by month: Belfast vs Glasgow · Belfast vs Dublin · Belfast vs Castletown · Belfast vs Charlestown · all comparisons
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