The bar chart below shows the average monthly peak daytime temperatures at Charleston
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 5.2 | 8.1 | 14.5 | 20.9 | 25.8 | 30.7 | 32.3 | 31 | 27.2 | 21.6 | 14.3 | 7.8 |
°F | 41.3 | 46.5 | 58.1 | 69.7 | 78.5 | 87.3 | 90.1 | 87.7 | 81 | 70.9 | 57.7 | 46 |
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 | 87 | 92 | 121 | 114 | 128 | 100 | 96 | 94 | 91 | 75 | 109 | 109 |
inches | 3.4 | 3.6 | 4.8 | 4.5 | 5 | 3.9 | 3.8 | 3.7 | 3.6 | 3 | 4.3 | 4.3 |
Rainy days | 9 | 9 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 7 | 9 | 10 |
Average annual rainfall in Charleston: 1163.9mm (458.2 inches)
The bar chart below shows the average daily sunshine hours in Charleston
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 5.3 | 5.9 | 7 | 8.5 | 9.7 | 11 | 11 | 10.4 | 8.7 | 7.7 | 5.3 | 4.6 |
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 | -4.2 | -1.7 | 3.9 | 9.4 | 14.3 | 19 | 21.1 | 19.6 | 15.7 | 8.9 | 4.1 | -1.2 |
Max °C | 5.4 | 8.3 | 14.8 | 21.2 | 26.1 | 31 | 32.6 | 31.3 | 27.5 | 21.9 | 14.6 | 8 |
Min °F | 24.4 | 28.9 | 38.9 | 48.9 | 57.7 | 66.2 | 69.9 | 67.2 | 60.3 | 48 | 39.3 | 29.8 |
Max °F | 33.1 | 37.9 | 48.7 | 59.5 | 68.4 | 77 | 80.2 | 77.7 | 70.9 | 59.7 | 48.7 | 38.1 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 11.8 | 11.4 | 12 | 13.6 | 16.3 | 19.3 | 22.2 | 24.5 | 23 | 19 | 15.6 | 13.4 |
°F | 53.3 | 52.4 | 53.5 | 56.6 | 61.3 | 66.7 | 72 | 76 | 73.4 | 66.1 | 60.2 | 56.1 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 17 | 17 | 18 | 17 | 15 | 13 | 12 | 12 | 12 | 13 | 16 | 17 |
mph | 10 | 11 | 11 | 11 | 9 | 8 | 8 | 7 | 8 | 8 | 10 | 10 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
71% | 69% | 66% | 64% | 68% | 68% | 70% | 71% | 72% | 68% | 70% | 72% |
Hottest month: | July | 32.3°C 90.1°F |
---|---|---|
Driest month: | October | 75mm 3ins |
Sunniest month: | July | 11hrs |
Coldest month: | January | 5.2°C 41.4°F |
Wettest month: | May | 128mm 5ins |
Warmest sea: | August | 24.5°C 76.1°F |