UV Index
UV Index
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Today's UV index in Naha, Japan 
will be up to 7.2, indicating a high level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
With Naha's UV index reaching 7.2, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours between 10 a.m. and 4 p.m., when UV rays are strongest.
Naha, Okinawa's weather is characterized by high UV indexes throughout the year, with an average daily maximum of 10-12, indicating extreme risk of exposure to harmful ultraviolet radiation.
The city experiences a subtropical climate with four distinct seasons. Summer is hot and humid from June to September, with temperatures often reaching 32°C. Winter is mild, from December to February, with temperatures ranging from 15°C to 20°C. Spring and autumn are pleasant, with temperatures between 20°C and 25°C.
Compared to other regions in Japan, Naha's climate is significantly warmer and more humid. Its tropical nature sets it apart from the country's mainland, which experiences more temperate climates. Neighboring countries, such as Taiwan and the Philippines, share similar subtropical climates, but Naha's unique location near the tropics makes its weather distinct.