UV Index
UV Index
Today's UV index in Uwajima, Japan 
will be up to 11.6, indicating a extreme level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-06-21
UV index at 11.6 in Uwajima means extreme risk: limit outdoor time especially from 10 a.m. to 4 p.m., actively seek shade, wear protective clothing, broad-brimmed hat, apply SPF 30+ sunscreen every 2 hours, and wear UV-blocking sunglasses. Watch for bright surfaces like water and snow increasing UV exposure.
The UV index in Uwajima varies through the year, reaching higher levels around summer, especially in July and August, while lower during winter months, typically around December and January.
Uwajima experiences hot and humid summers with temperatures often above 30°C (86°F) and mild winters with temperatures rarely dropping below freezing. Rain is common in the rainy season, mainly June and early July, while autumn brings cooler, drier weather.
Compared to other parts of Japan, Uwajima is generally warmer and more humid, especially in summer, due to its southern coastal location. It has milder winters than northern Japan but can be wetter than inland areas of Shikoku and neighboring countries like South Korea.
See the UV index hour by hour for Uwajima, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.