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 | 4.9 | 7.1 | 13.4 | 19 | 23.9 | 28 | 29.5 | 28.9 | 25.7 | 19.8 | 13.8 | 7.5 |
°F | 40.8 | 44.7 | 56 | 66.1 | 75 | 82.4 | 85.1 | 84 | 78.3 | 67.6 | 56.9 | 45.5 |
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 | 79 | 76 | 97 | 86 | 97 | 86 | 123 | 102 | 87 | 70 | 80 | 82 |
inches | 3.1 | 3 | 3.8 | 3.4 | 3.8 | 3.4 | 4.9 | 4 | 3.4 | 2.7 | 3.1 | 3.2 |
Rainy days | 15 | 14 | 14 | 14 | 13 | 11 | 13 | 11 | 10 | 10 | 12 | 14 |
Average annual rainfall in Charleston: 1020.734mm (401.9 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 | 4.4 | 5.2 | 6.4 | 7.5 | 8.4 | 9 | 8.6 | 8.2 | 7.5 | 6.8 | 4.6 | 3.8 |
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 | -5.4 | -4 | 1.2 | 5.5 | 10.4 | 15.1 | 17.8 | 17.2 | 13.4 | 6.5 | 2.1 | -2.6 |
Max °C | 5.2 | 7.4 | 13.7 | 19.3 | 24.2 | 28.3 | 29.8 | 29.2 | 26 | 20.1 | 14.1 | 7.8 |
Min °F | 22.4 | 24.9 | 34.1 | 41.9 | 50.7 | 59.2 | 64 | 63 | 56.1 | 43.7 | 35.8 | 27.4 |
Max °F | 31.8 | 35.1 | 45.3 | 54.3 | 63.1 | 71.1 | 74.8 | 73.8 | 67.5 | 55.9 | 46.6 | 36.7 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 7.7 | 6.8 | 6.9 | 9 | 13.8 | 19.9 | 24.1 | 24.9 | 22.9 | 18.5 | 13.8 | 10 |
°F | 45.9 | 44.3 | 44.4 | 48.2 | 56.9 | 67.8 | 75.4 | 76.8 | 73.3 | 65.2 | 56.8 | 49.9 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 13 | 13 | 14 | 13 | 11 | 9 | 9 | 8 | 9 | 10 | 12 | 12 |
mph | 8 | 8 | 9 | 8 | 7 | 6 | 5 | 5 | 5 | 6 | 7 | 8 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
69% | 68% | 62% | 60% | 67% | 72% | 76% | 77% | 78% | 72% | 69% | 71% |
Hottest month: | July | 29.5°C 85.1°F |
---|---|---|
Driest month: | October | 70mm 2.8ins |
Sunniest month: | June | 9hrs |
Coldest month: | January | 4.9°C 40.8°F |
Wettest month: | July | 123mm 4.8ins |
Warmest sea: | August | 24.9°C 76.8°F |