Charleston UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index8.2
- Avg Clouds69%
- Max Temp28.6 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Charleston, United States 
will reach a high of 8.2 today. This means a veryhigh level of sun exposure. See our tips below to stay safe!
Last checked: 2025-09-11
Hourly Forecast Chart
Today's Safety Tips
The risk is very high. It's best to stay out of the sun between 10 a.m. and 4 p.m. If you must be outside, wear protective clothing and apply sunscreen often.
Charleston's UV Index
Charleston's UV index can be high, especially in summer, often reaching levels 8 to 10, indicating strong sun exposure. It is lower in winter, usually around 2 to 4. UV levels fluctuate with the seasons.
Weather Seasons
Charleston has hot, humid summers with temperatures often above 85°F and mild winters that rarely drop below freezing. Rainfall is spread throughout the year but heavier in summer due to thunderstorms and hurricanes. Spring and fall are generally warm and pleasant.
Charleston's Climate
Compared to nearby cities like Savannah, Charleston is slightly more humid and has a longer rainy season. Relative to the wider southeastern U.S., Charleston experiences more tropical storms due to its coastal location. Neighboring states like Georgia and North Carolina have similar seasonal patterns but less humidity.
Hourly UV Index Trend
See the UV index hour by hour for Charleston. When the level is high, it's smart to find some shade.
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