Charleston weather in July 2025

Expect 31°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Charleston in July. Check more long-term weather averages for Charleston in July before you book your next holiday to South Carolina in 2025/2026.

  • 31°C maximum daytime temperature in July in Charleston31
    31°C max day temperature
  • 9 hours of sunshine per day
  • 12 days with some rainfall in July in Charleston12
    12 days with some rainfall
  • 24°C minimum night-time temperature in July in Charleston24
    24°C min night temperature
  • 14 hours of daylight per day in July in Charleston14
    14 hours of daylight per day
  • Very high heat & humidity in July in CharlestonVH
    Very High heat & humidity
  • 161 mm monthly rainfall in July in Charleston161
    161 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in July in Charleston10
    10 (Very High) UV index
  • 28°C sea temperature in July in Charleston28
    28°C sea temperature

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The July 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 July?

Daytime temperatures usually reach 31°C in Charleston in July with very high heat and humidity, falling to 24°C at night.

How sunny is it in Charleston in July?

There are normally 9 hours of bright sunshine each day in Charleston in July - that's 66% of daylight hours.

How warm is the sea around Charleston in July?

The average sea temperature around Charleston in July is 28°C.

Does it rain in Charleston in July?

There are usually 12 days with some rain in Charleston in July and the average monthly rainfall is 161mm.

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

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

Charleston July sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 05:15 19:32
Wednesday, 16th July 2025 05:23 19:28
Thursday, 31st July 2025 05:33 19:19

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