Mesa UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index11
- Avg Clouds1%
- Max Temp43.5 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Mesa, United States 
will reach a high of 11 today. This means a extreme level of sun exposure. See our tips below to stay safe!
Last checked: 2025-08-03
Hourly Forecast Chart
Today's Safety Tips
Extreme danger! Avoid being in the sun, especially during midday. If you go out, cover up with clothing, a hat, and sunglasses, and use plenty of sunscreen.
Mesa's UV Index
Mesa has a high UV index, especially in summer, often reaching very dangerous levels above 10 during midday hours. Winter months have a lower UV index, but it remains moderate compared to many places.
Weather Seasons
Seasonally, summers are extremely hot and dry, with temperatures often above 100°F (38°C). Winters are mild and pleasant, with daytime temperatures around the 60s to 70s°F (15-25°C). Rainfall is sparse and mostly occurs during brief monsoon storms in late summer.
Mesa's Climate
Compared to other places in Arizona, Mesa is hotter than northern cities like Flagstaff but similar to Phoenix since they are close. Compared to neighboring states, Mesa is much warmer and drier than northern New Mexico or Colorado, which get cooler and snowier winters.
Hourly UV Index Trend
See the UV index hour by hour for Mesa. When the level is high, it's smart to find some shade.
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