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Barry, Wales climate
Cfb Oceanic / temperate
Barry 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 2°C at night. Around 1321 mm of precipitation falls each year, peaking in December (159 mm) and easing off in April (75 mm). At latitude 51°N, day length swings from 7.7 hours in midwinter to 16.3 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)Barry climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 7 | 9 | 12 | 14 | 17 | 19 | 19 | 17 | 13 | 9 | 7 |
| Avg temp (°C) | 4 | 4 | 6 | 8 | 10 | 13 | 15 | 15 | 13 | 10 | 7 | 5 |
| Avg low (°C) | 2 | 1 | 2 | 4 | 6 | 9 | 11 | 11 | 9 | 7 | 4 | 2 |
| Precipitation (mm) | 133 | 111 | 101 | 75 | 84 | 80 | 88 | 102 | 85 | 151 | 153 | 159 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 7 | 9 | 12 | 14 | 17 |
| Avg temp (°C) | 4 | 4 | 6 | 8 | 10 | 13 |
| Avg low (°C) | 2 | 1 | 2 | 4 | 6 | 9 |
| Precipitation (mm) | 133 | 111 | 101 | 75 | 84 | 80 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 19 | 17 | 13 | 9 | 7 |
| Avg temp (°C) | 15 | 15 | 13 | 10 | 7 | 5 |
| Avg low (°C) | 11 | 11 | 9 | 7 | 4 | 2 |
| Precipitation (mm) | 88 | 102 | 85 | 151 | 153 | 159 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 77 | 76 | 73 | 72 | 73 | 71 | 73 | 71 | 76 | 79 | 79 |
| Relative humidity (%) | 93 | 92 | 89 | 86 | 84 | 84 | 84 | 85 | 87 | 89 | 92 | 93 |
| Wind speed (m/s) | 4.7 | 4.5 | 4.2 | 3.7 | 3.6 | 3.4 | 3.4 | 3.4 | 3.6 | 4.1 | 4.2 | 4.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 77 | 76 | 73 | 72 | 73 |
| Relative humidity (%) | 93 | 92 | 89 | 86 | 84 | 84 |
| Wind speed (m/s) | 4.7 | 4.5 | 4.2 | 3.7 | 3.6 | 3.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 71 | 73 | 71 | 76 | 79 | 79 |
| Relative humidity (%) | 84 | 85 | 87 | 89 | 92 | 93 |
| Wind speed (m/s) | 3.4 | 3.4 | 3.6 | 4.1 | 4.2 | 4.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Liscombe, a weather station, about 42 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.