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 | 13.3 | 15 | 18.7 | 22.8 | 26.6 | 29.5 | 31.2 | 30.6 | 28.3 | 23.9 | 19.6 | 15.4 |
°F | 56 | 59 | 65.6 | 73.1 | 79.8 | 85.1 | 88.1 | 87.1 | 82.9 | 75 | 67.3 | 59.7 |
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 | 86 | 81 | 109 | 64 | 95 | 153 | 162 | 185 | 121 | 73 | 60 | 76 |
inches | 3.4 | 3.2 | 4.3 | 2.5 | 3.7 | 6 | 6.4 | 7.3 | 4.8 | 2.9 | 2.4 | 3 |
Rainy days | 10 | 9 | 9 | 7 | 9 | 11 | 13 | 13 | 10 | 6 | 7 | 8 |
Average annual rainfall in Charleston: 1216.833mm (479.1 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 | 6.4 | 7.2 | 8.4 | 9.8 | 10.1 | 9.9 | 9.8 | 8.8 | 7.8 | 7.8 | 6.9 | 6.1 |
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 | 4.7 | 6 | 9.9 | 14 | 18.7 | 22.1 | 23.9 | 23.6 | 21.4 | 15.5 | 10.8 | 6.6 |
Max °C | 13.6 | 15.2 | 18.9 | 23.1 | 26.8 | 29.7 | 31.4 | 30.8 | 28.5 | 24.1 | 19.9 | 15.6 |
Min °F | 40.4 | 42.8 | 49.8 | 57.1 | 65.6 | 71.8 | 74.9 | 74.5 | 70.4 | 59.9 | 51.4 | 43.9 |
Max °F | 48.4 | 51.1 | 57.9 | 65.3 | 72.9 | 78.6 | 81.7 | 81 | 76.8 | 67.6 | 59.5 | 52 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 20.8 | 20.3 | 20.1 | 20.8 | 23.4 | 26.4 | 28.1 | 28.4 | 27.7 | 25.4 | 23 | 21.8 |
°F | 69.4 | 68.5 | 68.2 | 69.5 | 74.1 | 79.5 | 82.6 | 83.2 | 81.9 | 77.8 | 73.5 | 71.2 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 15 | 17 | 17 | 16 | 14 | 14 | 13 | 12 | 13 | 14 | 14 | 14 |
mph | 9 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 9 | 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% | 67% | 68% | 68% | 73% | 75% | 77% | 79% | 78% | 74% | 73% | 72% |
Hottest month: | July | 31.2°C 88.2°F |
---|---|---|
Driest month: | November | 60mm 2.4ins |
Sunniest month: | April | 9.8hrs |
Coldest month: | January | 13.3°C 55.9°F |
Wettest month: | August | 185mm 7.3ins |
Warmest sea: | August | 28.4°C 83.1°F |