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Weather & Climate
Hillsborough, Lisburn and Castlereagh, United Kingdom
Overview
Climate data and monthly weather averages for Hillsborough.
Key Metrics
Annual Avg
9.1°C
Summer Avg
14.1°C
Winter Avg
4.7°C
Record High
25.5°C
Record Low
-4.8°C
Annual Precipitation
1066.8 mm
Avg Humidity
89%
Summer Humidity
85%
Winter Humidity
93%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 12.5° | 4.5° | -4.3° | 93.3 | 94% | 19 | 71.6 |
| Feb | 12.8° | 4.5° | -2.8° | 73.4 | 92% | 36 | 66.3 |
| Mar | 16.3° | 5.5° | -2.7° | 75.6 | 90% | 72 | 74.5 |
| Apr | 18.7° | 7.8° | -1.5° | 62.1 | 87% | 112 | 54.9 |
| May | 21.9° | 10.5° | 1.5° | 76.6 | 84% | 144 | 66.2 |
| Jun | 25.4° | 13.3° | 4° | 89.7 | 84% | 141 | 58.3 |
| Jul | 25.5° | 14.6° | 6.3° | 98.9 | 85% | 134 | 51.7 |
| Aug | 24.3° | 14.4° | 6.3° | 106.3 | 87% | 111 | 54.7 |
| Sep | 21.7° | 12.6° | 3.4° | 81.6 | 89% | 80 | 73.6 |
| Oct | 18.3° | 9.9° | 0.3° | 109.4 | 91% | 48 | 69.8 |
| Nov | 15.2° | 6.9° | -2.2° | 104.7 | 93% | 23 | 65.1 |
| Dec | 13.2° | 5° | -4.8° | 95.2 | 94% | 14 | 68.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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