Hiroshima UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index2.8
- Avg Clouds56%
- Max Temp9.3 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Hiroshima, Japan 
will reach a high of 2.8 today. This means a low level of sun exposure. See our tips below to stay safe!
Last checked: 2025-12-04
Hourly Forecast Chart
Today's Safety Tips
The sun danger is low (0-2). You can enjoy the outdoors safely! On bright days, sunglasses are a good idea.
Hiroshima's UV Index
The UV index in Hiroshima varies through the year, typically reaching high levels during summer months, especially in July and August. It can sometimes be moderate to low during winter and early spring seasons.
Weather Seasons
Hiroshima experiences four distinct seasons with hot, humid summers and mild winters. Spring brings cherry blossoms and moderate temperatures, while autumn has pleasant, cooler weather and colorful leaves. The rainy season happens in early summer.
Hiroshima's Climate
Compared to other parts of Japan, Hiroshima's climate is milder and less snowy than northern areas like Hokkaido. It is warmer and wetter than many inland regions. Nearby countries like South Korea have similar seasonal patterns but can be colder in winter.
Hourly UV Index Trend
See the UV index hour by hour for Hiroshima. When the level is high, it's smart to find some shade.
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