Best year time to visit Sullivans Island

General weather information about Sullivans Island

Average annual temperature is 19.6 °C

Absolute maximum temperature: 36.7 °C

Absolute minimum temperature: 0.4 °C

Number of sunny days: 170 days

Number of rainy days: 195 days

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	21.2	26.3	26.9	26.7	32.5	32.6	36.7	34.6	32.5	28.6	26.0	21.7
Average daytime temperature (°C)	16.5	19.2	19.9	23.4	25.1	28.3	31.5	31.3	28.3	24.2	19.2	16.4
Average temperature (°C)	12.3	14.9	16.1	19.2	21.3	24.6	27.9	27.9	24.3	19.7	14.6	12.4
Average night temperature (°C)	8.7	11.7	12.5	15.3	17.6	21.4	24.8	24.8	20.7	15.9	11.1	9.3
Absolute minimum temperature (°C)	0.4	1.5	2.2	7.9	11.9	16.5	21.6	22.2	17.2	11.0	3.3	1.0

The largest precipitation sum in Sullivans Island is at

April — 153(mm)

June — 151(mm)

July — 151(mm)

December — 208(mm)

When is the best time to visit Sullivans Island?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Sullivans Island.

What is the weather like in Sullivans Island?

See average temperature, rainfall and daylight hours for Sullivans Island by month in the table above.

How many sunny days does Sullivans Island have?

The monthly weather statistics above show sunshine and rainfall patterns for Sullivans Island throughout the year.