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Douglas, Ireland climate
Cfb Oceanic / temperate
Douglas has a mildly seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 19°C, while the coldest is January averaging around 3°C at night. Precipitation is fairly even year-round, totalling about 1235 mm. At latitude 52°N, day length swings from 7.6 hours in midwinter to 16.4 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)Douglas climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 8 | 9 | 10 | 12 | 15 | 17 | 19 | 18 | 17 | 13 | 10 | 9 |
| Avg temp (°C) | 6 | 6 | 7 | 9 | 11 | 14 | 15 | 15 | 13 | 11 | 8 | 6 |
| Avg low (°C) | 3 | 3 | 4 | 5 | 7 | 10 | 12 | 11 | 10 | 8 | 5 | 4 |
| Precipitation (mm) | 139 | 96 | 98 | 84 | 78 | 87 | 90 | 91 | 95 | 131 | 119 | 126 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 8 | 9 | 10 | 12 | 15 | 17 |
| Avg temp (°C) | 6 | 6 | 7 | 9 | 11 | 14 |
| Avg low (°C) | 3 | 3 | 4 | 5 | 7 | 10 |
| Precipitation (mm) | 139 | 96 | 98 | 84 | 78 | 87 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 18 | 17 | 13 | 10 | 9 |
| Avg temp (°C) | 15 | 15 | 13 | 11 | 8 | 6 |
| Avg low (°C) | 12 | 11 | 10 | 8 | 5 | 4 |
| Precipitation (mm) | 90 | 91 | 95 | 131 | 119 | 126 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 76 | 73 | 69 | 69 | 70 | 73 | 71 | 68 | 71 | 70 | 73 |
| Relative humidity (%) | 93 | 92 | 90 | 88 | 86 | 85 | 87 | 87 | 89 | 91 | 93 | 94 |
| Wind speed (m/s) | 4.4 | 4.4 | 4.0 | 3.7 | 3.6 | 3.4 | 3.4 | 3.4 | 3.5 | 3.9 | 4.0 | 4.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 76 | 73 | 69 | 69 | 70 |
| Relative humidity (%) | 93 | 92 | 90 | 88 | 86 | 85 |
| Wind speed (m/s) | 4.4 | 4.4 | 4.0 | 3.7 | 3.6 | 3.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 71 | 68 | 71 | 70 | 73 |
| Relative humidity (%) | 87 | 87 | 89 | 91 | 93 | 94 |
| Wind speed (m/s) | 3.4 | 3.4 | 3.5 | 3.9 | 4.0 | 4.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Cork, a weather station, about 5 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.