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Haywards Heath, England climate
Cfb Oceanic / temperate
Haywards Heath has a mildly seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is August with an average daily high near 71°F, while the coldest is January averaging around 35°F at night. Around 33 inches of precipitation falls each year, peaking in December (4.1 inches) and easing off in June (2.0 inches). 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)Haywards Heath climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 46 | 47 | 51 | 57 | 62 | 67 | 71 | 71 | 66 | 60 | 52 | 47 |
| Avg temp (°F) | 40 | 41 | 44 | 49 | 54 | 59 | 62 | 63 | 58 | 51 | 45 | 41 |
| Avg low (°F) | 35 | 35 | 37 | 40 | 45 | 50 | 54 | 54 | 49 | 43 | 38 | 36 |
| Precipitation (in) | 3.6 | 2.6 | 2.0 | 2.0 | 2.1 | 2.0 | 2.2 | 2.6 | 2.3 | 3.9 | 4.1 | 4.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 46 | 47 | 51 | 57 | 62 | 67 |
| Avg temp (°F) | 40 | 41 | 44 | 49 | 54 | 59 |
| Avg low (°F) | 35 | 35 | 37 | 40 | 45 | 50 |
| Precipitation (in) | 3.6 | 2.6 | 2.0 | 2.0 | 2.1 | 2.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 71 | 71 | 66 | 60 | 52 | 47 |
| Avg temp (°F) | 62 | 63 | 58 | 51 | 45 | 41 |
| Avg low (°F) | 54 | 54 | 49 | 43 | 38 | 36 |
| Precipitation (in) | 2.2 | 2.6 | 2.3 | 3.9 | 4.1 | 4.1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 75 | 72 | 66 | 66 | 66 | 63 | 65 | 66 | 72 | 78 | 77 |
| Relative humidity (%) | 90 | 88 | 86 | 83 | 82 | 82 | 81 | 81 | 83 | 85 | 89 | 91 |
| Wind speed (mph) | 12.1 | 11.5 | 10.5 | 9.0 | 8.9 | 8.2 | 8.2 | 8.5 | 9.4 | 10.8 | 11.1 | 11.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 75 | 72 | 66 | 66 | 66 |
| Relative humidity (%) | 90 | 88 | 86 | 83 | 82 | 82 |
| Wind speed (mph) | 12.1 | 11.5 | 10.5 | 9.0 | 8.9 | 8.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 65 | 66 | 72 | 78 | 77 |
| Relative humidity (%) | 81 | 81 | 83 | 85 | 89 | 91 |
| Wind speed (mph) | 8.2 | 8.5 | 9.4 | 10.8 | 11.1 | 11.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Herstmonceux West End, a weather station, about 31 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.