Charleston weather in June 2025

Expect 30°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Charleston in June based on long-term weather averages. There is usually 11 days with some rainfall and 153 mm of average monthly rainfall in June.

  • 30°C maximum daytime temperature in June in Charleston30
    30°C max day temperature
  • 9 hours of sunshine per day
  • 11 days with some rainfall in June in Charleston11
    11 days with some rainfall
  • 22°C minimum night-time temperature in June in Charleston22
    22°C min night temperature
  • 14 hours of daylight per day in June in Charleston14
    14 hours of daylight per day
  • High heat & humidity in June in CharlestonH
    High heat & humidity
  • 153 mm monthly rainfall in June in Charleston153
    153 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in June in Charleston10
    10 (Very High) UV index
  • 26°C sea temperature in June in Charleston26
    26°C sea temperature

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The June weather guide for South Carolina (Charleston) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Charleston in June?

Daytime temperatures usually reach 30°C in Charleston in June with high heat and humidity, falling to 22°C at night.

How sunny is it in Charleston in June?

There are normally 9 hours of bright sunshine each day in Charleston in June - that's 65% of daylight hours.

How warm is the sea around Charleston in June?

The average sea temperature around Charleston in June is 26°C.

Does it rain in Charleston in June?

There are usually 11 days with some rain in Charleston in June and the average monthly rainfall is 153mm.

What is the chance of a hurricane in Charleston in June?

On average less than 1 day in June in Charleston is likely to be affected by the passage of one or more tropical storms.

Charleston June sunrise & sunset times

Browse the sunrise and sunset times for Charleston in June 2025. Select a month to view Charleston sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 05:12 19:23
Sunday, 15th June 2025 05:11 19:30
Monday, 30th June 2025 05:15 19:32

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