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 | 1 | 3.8 | 10.6 | 17.7 | 23.3 | 28.2 | 29.8 | 28.6 | 25.4 | 19 | 11.1 | 3.7 |
°F | 33.8 | 38.9 | 51.1 | 63.9 | 74 | 82.7 | 85.7 | 83.4 | 77.7 | 66.1 | 52 | 38.6 |
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 | 57 | 53 | 84 | 96 | 103 | 96 | 108 | 79 | 82 | 72 | 90 | 77 |
inches | 2.3 | 2.1 | 3.3 | 3.8 | 4 | 3.8 | 4.2 | 3.1 | 3.2 | 2.8 | 3.6 | 3 |
Rainy days | 10 | 9 | 12 | 12 | 11 | 9 | 9 | 8 | 8 | 8 | 10 | 11 |
Average annual rainfall in Charleston: 947.267mm (372.9 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 | 5.2 | 5.8 | 6.6 | 8 | 9.6 | 11 | 10.9 | 10.1 | 8.7 | 7.4 | 4.9 | 4.3 |
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 | -8.3 | -6.1 | -0 | 5.8 | 11.4 | 16.4 | 18.5 | 17.2 | 13.3 | 7 | 1.3 | -4.9 |
Max °C | 1.3 | 4.1 | 10.9 | 18 | 23.6 | 28.5 | 30.1 | 28.9 | 25.7 | 19.3 | 11.4 | 3.9 |
Min °F | 17.2 | 21.1 | 31.9 | 42.4 | 52.5 | 61.4 | 65.3 | 62.9 | 55.9 | 44.5 | 34.3 | 23.2 |
Max °F | 25.7 | 30.2 | 41.7 | 53.4 | 63.5 | 72.3 | 75.7 | 73.4 | 67.1 | 55.6 | 43.3 | 31.1 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 8.6 | 8 | 8.3 | 9.5 | 11.8 | 15.3 | 19.6 | 22.4 | 20.8 | 16.2 | 12.6 | 10.1 |
°F | 47.5 | 46.4 | 46.9 | 49.1 | 53.2 | 59.6 | 67.2 | 72.3 | 69.4 | 61.2 | 54.6 | 50.2 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 18 | 18 | 20 | 19 | 16 | 14 | 13 | 12 | 13 | 15 | 17 | 18 |
mph | 11 | 11 | 12 | 12 | 10 | 9 | 8 | 8 | 8 | 9 | 11 | 11 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
74% | 73% | 70% | 65% | 67% | 67% | 71% | 73% | 73% | 69% | 73% | 77% |
Hottest month: | July | 29.8°C 85.6°F |
---|---|---|
Driest month: | February | 53mm 2.1ins |
Sunniest month: | July | 10.9hrs |
Coldest month: | January | 1°C 33.8°F |
Wettest month: | July | 108mm 4.3ins |
Warmest sea: | August | 22.4°C 72.3°F |