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UV Index in Tokyo

Day Summary

Today's UV index in Tokyo, Japan Japan will be up to 10.9, indicating a very high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.

Last checked: 2025-05-09

Forecast

Today's tips

With a UV index of 10.9 in Tokyo, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.

Tokyo's UV Index

Tokyo's UV index is highest in summer, often reaching levels 7 to 9, indicating strong sunlight. It is lowest in winter, usually around 1 to 2, showing weak sunlight exposure during those months.

Weather Seasons

UV index

Tokyo experiences four distinct seasons: hot, humid summers with frequent rain and typhoons; cool, dry winters with occasional snow; mild springs with cherry blossoms; and colorful autumns with falling leaves.

Tokyo's Climate

Compared to other places in Japan, Tokyo has milder winters than northern areas like Hokkaido but hotter summers than northern Honshu. Neighboring countries like South Korea and China share similar seasonal weather, but Tokyo's coastal location makes its climate more humid.

Hourly Trend

See the UV index hour by hour for Tokyo, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.

Disclaimer

* This page's content about the UV index in Tokyo (Japan) is for educational and informational purposes only. The developers and data providers are not liable for the accuracy, reliability, or availability of the information. The information is not a substitute for professional medical advice, and the developers and data providers are not medical professionals. Seek advice from a qualified health provider for any medical concerns, and do not disregard medical advice or delay seeking it based on the information provided on this site.