Northern Ireland climate by month
8-year averages · when to visit| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Belfast | 45° | 46° | 48° | 54° | 59° | 63° | 66° | 64° | 61° | 55° | 50° | 46° |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Belfast | 12 | 14 | 16 | 13 | 14 | 15 | 17 | 18 | 15 | 16 | 15 | 15 |
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
Belfast climate in January
8-year averages · when to visit
| December | January | February | |
|---|---|---|---|
| Average temperature | ▼ 43°F | 41°F | ▲ 43°F |
| Typical high | ▼ 46°F | 45°F | ▲ 46°F |
| Typical low | ▼ 39°F | 37°F | → 37°F |
| Precipitation | ▼ 3.9 in | 2.4 in | ▲ 3.2 in |
| Wet days | ▼ 15 d | 12 d | ▲ 14 d |
| Humidity | ▲ 86% | 87% | ▼ 84% |
| Sunshine per day | ▲ 2.9 h | 3.9 h | ▲ 5.2 h |
| Cloud cover | ▼ 60% | 51% | ▼ 46% |
| Midday UV | → 1 | 1 | ▲ 2 |
| Daylight | 7:22 | 7:58 | 9:44 |
| Our take | Poor | Poor | Poor |
January temperatures day by day daily mean + smoothed trend · °F
January precipitation day by day in
January UV day by day clear-sky midday value
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
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Updated: 12:18 PM
Northern Ireland, United Kingdom · 7 weather points · Climate reference: Belfast (54.60°N, 5.93°W) · Europe/London