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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 66°F, while the coldest is January averaging around 38°F at night. Precipitation is fairly even year-round, totalling about 49 inches. 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 (°F) | 47 | 47 | 50 | 54 | 58 | 63 | 66 | 65 | 62 | 56 | 51 | 48 |
| Avg temp (°F) | 42 | 42 | 44 | 47 | 52 | 56 | 59 | 59 | 56 | 51 | 46 | 43 |
| Avg low (°F) | 38 | 37 | 39 | 41 | 45 | 50 | 53 | 53 | 50 | 46 | 41 | 39 |
| Precipitation (in) | 5.5 | 3.8 | 3.8 | 3.3 | 3.1 | 3.4 | 3.6 | 3.6 | 3.7 | 5.2 | 4.7 | 4.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 47 | 47 | 50 | 54 | 58 | 63 |
| Avg temp (°F) | 42 | 42 | 44 | 47 | 52 | 56 |
| Avg low (°F) | 38 | 37 | 39 | 41 | 45 | 50 |
| Precipitation (in) | 5.5 | 3.8 | 3.8 | 3.3 | 3.1 | 3.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 66 | 65 | 62 | 56 | 51 | 48 |
| Avg temp (°F) | 59 | 59 | 56 | 51 | 46 | 43 |
| Avg low (°F) | 53 | 53 | 50 | 46 | 41 | 39 |
| Precipitation (in) | 3.6 | 3.6 | 3.7 | 5.2 | 4.7 | 4.9 |
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 (mph) | 9.8 | 9.8 | 9.0 | 8.3 | 8.0 | 7.7 | 7.5 | 7.5 | 7.9 | 8.6 | 9.0 | 9.7 |
| 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 (mph) | 9.8 | 9.8 | 9.0 | 8.3 | 8.0 | 7.7 |
| 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 (mph) | 7.5 | 7.5 | 7.9 | 8.6 | 9.0 | 9.7 |
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.