UV Index in Rausu, Japan

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Rausu, Japan, especially given the area's unique climate. With a Dfc climate zone that experiences prolonged daylight hours, awareness of UV levels can be a game-changer in preventing sunburn and protecting skin health. The UV Index here peaks at 9 around midday, signaling a significant risk for harmful effects if proper precautions aren't taken. By comprehending these UV levels, you can enjoy the stunning beauty of Rausu outdoors while safeguarding your skin against the potential dangers of overexposure. Stay informed and stay safe!

Hourly UV Index in Rausu

The UV Index reflects the sun's intensity throughout the day, peaking at 11:00 AM with a maximum value of 9, indicating a high risk of harm from unprotected sun exposure. Starting from a gentle 3 at 07:00, the index rises steadily, reaching 8 by 10:00 AM and peaking at 9 just before noon. As the afternoon unfolds, the intensity begins to decline, dipping to 5 by 14:00, and further decreasing to a low of 1 by 17:00. The day wraps up with a 0 at 19:00, suggesting that the sun's rays pose little threat after sunset. Stay sun-safe by applying sunscreen during peak hours and seeking shade as needed!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
TimeUVICategoryTime to Burn
07:003moderate30 min
08:005moderate30 min
09:007high25 min
10:008very high15 min
11:009very high15 min
12:008very high15 min
13:007high25 min
14:005moderate30 min
15:003moderate30 min
16:002low45 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Rausu

Throughout the year, the UV Index exhibits noticeable seasonal changes, indicating varying levels of sun exposure risk. January and December are characterized by a low UV Index (2), with safe burn times of 45 minutes. As spring approaches, the index rises to a moderate rating of 3 in February and 5 in March. The transition to summer brings significantly higher UV levels, peaking in July at a critical 10, categorizing it as very high, with a burn time of only 15 minutes. May and June also carry very high values (8 and 9, respectively). August begins a gradual decline, yet still remains at a very high level of 9. The fall months see a reduction to high (September) and moderate (October and November) exposure, with burn times increasing again to 25 and 30 minutes respectively. Visitors and residents should exercise heightened caution from April to August, with protective measures, such as sunscreen and appropriate clothing, being essential during these high-risk months for UV exposure.

Monthly Maximum UV Index for Rausu, Japan

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Rausu. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec2357991097532
Data source: Statistical UV Index data for Rausu, based on information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Compare Rausu UV Index with Other Japan Cities

The table above highlights how UV exposure in Rausu compares to other major locations across Japan. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Rausu's solar exposure compared to other cities in Japan. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Rausu2357891097532
Sapporo UVI2367999108532
Yokohama UVI35891111111110754
Tokyo UVI35891111111110754
Nagoya UVI468101111111110753
Osaka UVI468111111121110753