UV Index
UV Index
Today's UV index in Sagamihara, Japan 
will be up to 11.1, 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: 2025-07-15
UV index at 11.1 in Sagamihara 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 Sagamihara varies throughout the year, reaching high levels during summer months, especially in July and August. It is lower in winter, typically from December to February.
Sagamihara experiences four distinct seasons: warm and humid summers, cool and dry winters, mild springs with cherry blossoms, and colorful autumns with falling leaves. Rainfall peaks during the rainy season in June.
Compared to other parts of Japan, Sagamihara has a mild climate with less snowfall than northern areas like Hokkaido. It is warmer than northern cities but cooler than southern regions such as Okinawa. Neighboring Tokyo has similar weather patterns.
See the UV index hour by hour for Sagamihara, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.