UV Index
Osaka UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index9.3
- Avg Clouds91%
- Max Temp34.3 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Osaka, Japan 
will reach a high of 9.3 today. This means a veryhigh level of sun exposure. See our tips below to stay safe!
Last checked: 2025-08-22
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.
Osaka's UV Index
Osaka's UV index is highest in summer, often reaching very high to extreme levels around July and August, and lowest in winter, typically low to moderate from December to February. Seasonal patterns include hot, humid summers with heavy rain due to the monsoon, and cool, mild winters with less precipitation. Compared to other parts of Japan, Osaka is warmer and wetter than northern regions like Hokkaido but cooler and less rainy than southern areas like Okinawa; it experiences more rainfall than most inland areas but less than some coastal zones.
Hourly UV Index Trend
See the UV index hour by hour for Osaka. When the level is high, it's smart to find some shade.
- Loading hourly data...