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Omagh, Northern Ireland climate
Cfb Oceanic / temperate
Omagh has a mildly seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 18°C, while the coldest is January averaging around 1°C at night. Precipitation is fairly even year-round, totalling about 1307 mm. At latitude 55°N, day length swings from 7.0 hours in midwinter to 17.0 hours at midsummer.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Omagh climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 7 | 8 | 11 | 14 | 16 | 18 | 17 | 15 | 12 | 8 | 6 |
| Avg temp (°C) | 4 | 4 | 5 | 7 | 10 | 12 | 14 | 14 | 12 | 9 | 6 | 4 |
| Avg low (°C) | 1 | 1 | 2 | 3 | 6 | 9 | 10 | 10 | 9 | 6 | 3 | 2 |
| Precipitation (mm) | 128 | 108 | 98 | 82 | 88 | 98 | 100 | 126 | 92 | 122 | 129 | 137 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 7 | 8 | 11 | 14 | 16 |
| Avg temp (°C) | 4 | 4 | 5 | 7 | 10 | 12 |
| Avg low (°C) | 1 | 1 | 2 | 3 | 6 | 9 |
| Precipitation (mm) | 128 | 108 | 98 | 82 | 88 | 98 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 17 | 15 | 12 | 8 | 6 |
| Avg temp (°C) | 14 | 14 | 12 | 9 | 6 | 4 |
| Avg low (°C) | 10 | 10 | 9 | 6 | 3 | 2 |
| Precipitation (mm) | 100 | 126 | 92 | 122 | 129 | 137 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 79 | 80 | 78 | 76 | 81 | 81 | 80 | 78 | 77 | 78 | 78 |
| Relative humidity (%) | 95 | 93 | 91 | 88 | 85 | 84 | 85 | 87 | 89 | 92 | 95 | 95 |
| Wind speed (m/s) | 4.1 | 4.1 | 3.9 | 3.5 | 3.4 | 3.2 | 3.1 | 3.1 | 3.3 | 3.6 | 3.7 | 3.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 79 | 80 | 78 | 76 | 81 |
| Relative humidity (%) | 95 | 93 | 91 | 88 | 85 | 84 |
| Wind speed (m/s) | 4.1 | 4.1 | 3.9 | 3.5 | 3.4 | 3.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 80 | 78 | 77 | 78 | 78 |
| Relative humidity (%) | 85 | 87 | 89 | 92 | 95 | 95 |
| Wind speed (m/s) | 3.1 | 3.1 | 3.3 | 3.6 | 3.7 | 3.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 26 years of daily observations at Lough Fea, a weather station, about 34 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.