Best year time to visit Charleston

General weather information about Charleston

Average annual temperature is 9.1 °C

Absolute maximum temperature: 31.6 °C

Absolute minimum temperature: -25.3 °C

Number of sunny days: 144 days

Number of rainy days: 196 days

Number of snow days: 25 days

Look at detailed online map of Charleston

* Weather data for Charleston Canada 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)	11.6	13.3	10.3	19.4	28.7	31.6	30.3	26.6	27.0	24.1	16.1	15.1
Average daytime temperature (°C)	5.1	2.7	4.5	11.4	16.2	19.1	25.1	23.2	21.8	16.7	7.7	5.5
Average temperature (°C)	1.8	-2.2	0.8	6.5	10.9	15.0	20.9	19.2	17.5	12.7	3.6	2.0
Average night temperature (°C)	-1.4	-6.7	-2.4	2.6	6.5	11.7	17.9	16.0	14.6	9.7	0.2	-0.9
Absolute minimum temperature (°C)	-7.9	-25.3	-7.7	-3.5	2.9	6.7	15.0	11.0	7.7	3.4	-5.6	-7.5

Charleston monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	11.0	12.0	14.0	15.0	15.0	15.0	14.0	13.0	11.0	10.0	9.0
Daylight mean duration (h)	9.3	10.5	11.9	13.5	14.8	15.4	15.1	14.0	12.5	11.0	9.6	8.9
Daylight minimum duration (h)	8.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	9.0	8.0
Sunshine mean duration (h)	4.0	5.3	6.9	8.9	10.4	6.9	8.4	8.3	7.7	6.9	5.6	3.7
Precipitation (mm)	249	82	125	59	49	237	253	197	86	142	147	158
Sunny days	7	11	10	15	18	10	8	10	16	10	15	14
Rainy days	19	8	14	14	13	20	23	21	14	21	13	16
Snow days	5	9	7	1	0	0	0	0	0	0	2	1

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:

April — 8.9(h)
May — 10.4(h)

Months with the longest average daylight duration in Charleston:

June — 15.4(h)

The largest precipitation sum in Charleston is at

January — 249(mm)

June — 237(mm)

July — 253(mm)

August — 197(mm)

Weather forecast in the closest to Charleston admin centers