UV Index in Iwamizawa, Hokkaidō, Japan

· Asia/Tokyo

3.1
Moderate · clear-sky maximum Wednesday, October 21, 2026

At solar noon (11:17:37 AM) the sun reaches 36.2° above the horizon in Iwamizawa. Without clouds, that corresponds to a maximum UV index of about 3.1 (moderate). Clouds usually lower the real value; snow, sand, water and altitude can raise it.

☀️ Sun Safety: When the UV index is high, protect yourself with sunscreen, shade, and a hat. Values of 6 or more indicate increased sunburn risk!

UV index in Iwamizawa, next 14 days

DateSun at noonClear-sky maxForecast max
36.2° 3.1 Moderate —
35.8° 3.0 Moderate —
35.5° 2.9 Low —
35.1° 2.9 Low —
34.8° 2.8 Low —
34.4° 2.8 Low —
34.1° 2.7 Low —
33.7° 2.6 Low —
33.4° 2.6 Low —
33.1° 2.5 Low —
32.8° 2.5 Low —
32.4° 2.4 Low —
32.1° 2.4 Low —
31.8° 2.3 Low —

Clear-sky values are calculated from the sun's height at solar noon (cloud-free sky, average ozone). Forecast values from Open-Meteo include clouds and load in your browser.

☀️ Sun Protection Pick
Banana Boat Sport Ultra SPF 100 Sunscreen
★★★★★ ★★★★★ 4.8 · 11,180 ratings

High UV today? Sport sunscreen with SPF 100 stays on through sweat — essential for long outdoor activities.

View on Amazon →
*Affiliate link — we may earn a small commission at no extra cost to you.
The UV index in Iwamizawa measures the intensity of ultraviolet radiation reaching the ground. Values below 3 are considered low risk, while 6 and above require sun protection such as sunscreen, sunglasses, and shade. The clear-sky value shows how strong the sun can get on each day; the forecast shows what is expected with clouds. See today's sunrise and sunset times for Iwamizawa or discover the best light for photos during the golden hour in Iwamizawa.

About Iwamizawa

Iwamizawa is a city in Hokkaidō, Japan. It has existed as a municipality since 1943 and covers an area of 481.0 square kilometres. According to the 2020 census, the population of the city is 79,361 residents. The local infrastructure includes Iwamizawa Station, which serves as a notable railway facility alongside other locations such as Horomui Station and Kami-Horomui Station. Residents and visitors may also visit the Iwamizawa Shrine, a Shinto shrine classified as a Soma Shrine. The city maintains international ties through twinning arrangements with the towns of Pocatello and Canby.

AI-assisted description based on geographic data and editorial notes.