Best year time to visit Charleston

General weather information about Charleston

Average annual temperature is 13.4 °C

Absolute maximum temperature: 36.7 °C

Absolute minimum temperature: -12.3 °C

Number of sunny days: 191 days

Number of rainy days: 167 days

Number of snow days: 7 days

Look at detailed online map of Charleston

* Weather data for Charleston United States is based on climate observations for 2026 year

Charleston air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	18.4	19.0	21.0	27.3	31.3	32.8	35.5	36.7	31.9	29.1	24.7	16.1
Average daytime temperature (°C)	6.5	9.9	11.2	18.9	24.6	28.8	30.0	28.6	26.2	19.3	12.9	9.0
Average temperature (°C)	2.4	3.9	5.5	12.0	18.5	22.6	24.6	23.5	20.7	14.3	7.4	4.6
Average night temperature (°C)	-0.6	-0.3	1.2	6.7	12.5	17.0	19.8	19.1	15.8	10.4	3.0	1.8
Absolute minimum temperature (°C)	-12.2	-12.3	-7.9	-1.2	3.7	10.9	16.3	13.0	11.4	-2.7	-8.4	-7.3

Charleston monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	10.0	11.0	12.0	13.0	14.0	14.0	14.0	14.0	13.0	11.0	10.0	9.0
Daylight mean duration (h)	9.7	10.7	12.0	13.2	14.3	14.9	14.6	13.7	12.5	11.2	10.0	9.4
Daylight minimum duration (h)	9.0	10.0	11.0	12.0	13.0	14.0	14.0	13.0	11.0	10.0	9.0	9.0
Sunshine mean duration (h)	4.2	7.5	6.5	9.5	11.1	12.2	12.3	10.5	10.1	7.3	7.9	5.0
Precipitation (mm)	91	69	128	70	44	37	118	116	32	59	18	65
Sunny days	14	17	13	17	19	18	11	12	18	17	22	13
Rainy days	12	11	16	13	12	12	20	19	12	14	8	18
Snow days	5	0	2	0	0	0	0	0	0	0	0	0

Charleston - weather forecast by months

Charleston weather in january Charleston weather in february Charleston weather in march Charleston weather in april Charleston weather in may Charleston weather in june Charleston weather in july Charleston weather in august Charleston weather in september Charleston weather in october Charleston weather in november Charleston weather in december

Best time to visit Charleston:

The best time to visit Charleston during the most sunny months:

May — 11.1(h)
June — 12.2(h)
July — 12.3(h)

The largest precipitation sum in Charleston is at

January — 91(mm)

March — 128(mm)

July — 118(mm)

August — 116(mm)

Weather forecast in the closest to Charleston admin centers