Charleston weather in September 2025

Expect 26°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Charleston in September. Check more long-term weather averages for Charleston in September before you book your next holiday to West Virginia in 2025/2026.

  • 26°C maximum daytime temperature in September in Charleston26
    26°C max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in September in Charleston10
    10 days with some rainfall
  • 13°C minimum night-time temperature in September in Charleston13
    13°C min night temperature
  • 12 hours of daylight per day in September in Charleston12
    12 hours of daylight per day
  • Low heat & humidity in September in CharlestonL
    Low heat & humidity
  • 87 mm monthly rainfall in September in Charleston87
    87 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Charleston7
    7 (High) UV index

More about Charleston

Charleston by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for West Virginia

Cosmos: up to £200 off USA & Canada tours

  • Save up to £200 per couple on USA & Canada escorted tours
  • Book tours to southern USA & national parks in 2024
  • Travel before 31st December 2024 (inclusive)
Go to Cosmos deal >>

Expires at 23:59 on Tuesday 31st Dec 2024 · View all Cosmos offers

The September weather guide for West Virginia (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)

Back to top

More about the USA

How hot is it in Charleston in September?

Daytime temperatures usually reach 26°C in Charleston in September with low heat and humidity, falling to 13°C at night.

How sunny is it in Charleston in September?

There are normally 7 hours of bright sunshine each day in Charleston in September - that's 56% of daylight hours.

Does it rain in Charleston in September?

There are usually 10 days with some rain in Charleston in September and the average monthly rainfall is 87mm.

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

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

Charleston September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:56 18:56
Monday, 15th September 2025 06:08 18:34
Tuesday, 30th September 2025 06:22 18:10

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^