The bar chart below shows the average monthly peak daytime temperatures at Chelsea
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | -3.9 | -2 | 3.3 | 10.1 | 18 | 22.5 | 25.1 | 23.6 | 19 | 12.7 | 5.3 | -1.8 |
°F | 25 | 28.3 | 37.9 | 50.3 | 64.3 | 72.4 | 77.2 | 74.5 | 66.3 | 54.9 | 41.6 | 28.7 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
The graph below shows the average rainfall and number of rainy days per month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
mm | 73 | 68 | 78 | 82 | 94 | 92 | 95 | 104 | 90 | 88 | 98 | 88 |
inches | 2.9 | 2.7 | 3.1 | 3.2 | 3.7 | 3.6 | 3.7 | 4.1 | 3.5 | 3.4 | 3.8 | 3.5 |
Rainy days | 14 | 12 | 13 | 13 | 14 | 13 | 12 | 13 | 11 | 12 | 15 | 15 |
Average annual rainfall in Chelsea: 1020.7mm (401.9 inches)
The bar chart below shows the average daily sunshine hours in Chelsea
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 4.6 | 5.6 | 6.2 | 7.1 | 8.2 | 9 | 9.6 | 8.3 | 6.9 | 5.6 | 3.6 | 3.6 |
The graph below shows the daily range of temperatures for each month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Min °C | -16.8 | -15.7 | -9 | -2.5 | 3.7 | 8.6 | 11.4 | 10.3 | 5.9 | 0.1 | -4.4 | -12.5 |
Max °C | -3.6 | -1.7 | 3.6 | 10.5 | 18.3 | 22.8 | 25.5 | 24 | 19.4 | 13.1 | 5.6 | -1.6 |
Min °F | 1.8 | 3.7 | 15.8 | 27.6 | 38.7 | 47.5 | 52.4 | 50.5 | 42.5 | 32.3 | 24.2 | 9.6 |
Max °F | 13.6 | 16.3 | 27.1 | 39.2 | 51.8 | 60.3 | 65.1 | 62.8 | 54.7 | 43.9 | 33.1 | 19.4 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 4.9 | 3.5 | 3.2 | 4.6 | 8.1 | 13.1 | 17.6 | 18.9 | 16.9 | 13.2 | 9.7 | 7 |
°F | 40.8 | 38.3 | 37.8 | 40.3 | 46.5 | 55.6 | 63.7 | 66 | 62.4 | 55.7 | 49.5 | 44.5 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 14 | 14 | 15 | 15 | 14 | 13 | 12 | 11 | 12 | 13 | 14 | 14 |
mph | 9 | 9 | 9 | 9 | 9 | 8 | 7 | 7 | 7 | 8 | 9 | 9 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
70% | 68% | 66% | 62% | 65% | 71% | 73% | 76% | 77% | 74% | 75% | 75% |
Hottest month: | July | 25.1°C 77.2°F |
---|---|---|
Driest month: | February | 68mm 2.7ins |
Sunniest month: | July | 9.6hrs |
Coldest month: | January | -3.9°C 25°F |
Wettest month: | August | 104mm 4.1ins |
Warmest sea: | August | 18.9°C 66°F |