UV Index
UV Index
Today's UV index in Nagoya, Japan 
will be up to 9.6, 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
With a UV index of 9.6 in Nagoya, 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.
Nagoya's UV index is highest in summer, often reaching 7 to 9, indicating strong sunlight. In spring and autumn, it drops to around 3 to 5, while winter has the lowest levels, usually 1 to 2.
Nagoya experiences four distinct seasons: hot, humid summers with temperatures around 30°C, cool winters with some snow, mild springs with cherry blossoms, and colorful autumns. Rain mainly falls in June and July during the rainy season.
Compared to other Japanese cities, Nagoya is warmer than northern areas like Sapporo but cooler than southern cities such as Fukuoka. Its rainfall is less than Tokyo's but more than dry regions in western Japan. Neighboring countries like South Korea have similar seasonal changes but generally lower humidity.
See the UV index hour by hour for Nagoya, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.