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 December
8-year averages · when to visit
| November | December | January | |
|---|---|---|---|
| Average temperature | ▼ 46°F | 43°F | ▼ 41°F |
| Typical high | ▼ 50°F | 46°F | ▼ 45°F |
| Typical low | ▼ 43°F | 39°F | ▼ 37°F |
| Precipitation | ▼ 3.9 in | 3.9 in | ▼ 2.4 in |
| Wet days | → 15 d | 15 d | ▼ 12 d |
| Humidity | ▼ 87% | 86% | ▲ 87% |
| Sunshine per day | ▼ 4.1 h | 2.9 h | ▲ 3.9 h |
| Cloud cover | ▲ 51% | 60% | ▼ 51% |
| Midday UV | → 1 | 1 | → 1 |
| Daylight | 8:28 | 7:22 | 7:58 |
| Our take | Poor | Poor | Poor |
December temperatures day by day daily mean + smoothed trend · °F
December precipitation day by day in
December 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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NBM + global weather models
Updated: 12:18 PM
Northern Ireland, United Kingdom · 7 weather points · Climate reference: Belfast (54.60°N, 5.93°W) · Europe/London