8 to 31°C
temperature
2947 hours
sunshine per day
458 mm
rain
222 days
dry
138 days
rain
5 days
snow

Climate of Charleston

Charleston has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Charleston is 39° degrees and there is about 180 inch of rain in a year. It is dry for 199 days a year with an average humidity of 76% and an UV-index of 4.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 8°C and 31°C
  • Night:the average nighttime temperature is between -1°C and 19°C
  • Rain: it rains 138 days and there is a total of approximately 458 mm rainfall
  • Snow: it snows an average of 5 days per year
  • Sun hours: throughout the year there are 2947 sun hours
Maximum temperature: between 8°C and 31°C
Warmest month: 31°C in July
Coldest month: 8°C in January
Night temperature: between -1°C and 19°C
Dry days: 222 days
Days with rain: 138 days
Days with snow: 5 days
Total rain sum: 458 mm
Hours of sunshine: 2947 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Charleston.

Precipitation graph

This graph shows the average amount of rainfall per month for Charleston.

Climate table of Charleston

In this climate table you can see at a glance what the average weather per month is for Charleston. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Charleston might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°F) 46 51 59 70 78 86 88 87 81 70 58 50
Night temp. (°F) 31 35 41 49 57 64 66 65 60 49 40 36
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (inch) 14 15 16 13 17 16 18 16 13 12 12 18
Days with rain 10 11 13 12 13 14 15 13 11 8 7 11
Days with snow 2 1 1 - - - - - - - - 1
Dry days 19 16 17 18 18 16 16 18 19 23 23 19
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 5 6 7 9 10 11 11 10 9 7 6 5
Wind force (Bft) 2 2 2 2 2 2 2 2 2 2 2 2
UV-index 2 2 4 5 6 6 6 6 5 4 3 2

Best time to visit Charleston

The best time to visit Charleston in the state of Tennessee is from April through October. In this period you have a warm temperature and almost no precipitation. The highest average temperature in Charleston is 88°F in July and the lowest is 46°F in January.

Climate of Charleston by month

What is the average climate in a given month for Charleston? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

Charleston weather experiences

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