UV Index in Hamatonbetsu, Japan

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Hamatonbetsu, Japan, especially when it comes to protecting your skin from harmful ultraviolet radiation. With UV levels peaking at 8 between 11:00 AM and 1:00 PM, awareness can significantly aid in preventing sunburn and promoting overall skin health. Hamatonbetsu's Dfb climate brings a mix of sunny days and varying UV exposure risks, making it essential to stay informed and take proactive measures during high UV hours. Stay safe and enjoy the outdoors with knowledge about UV levels!

Hourly UV Index in Hamatonbetsu

The UV Index analysis reveals a striking pattern throughout the day. Starting at 07:00 with a manageable level of 3, the intensity of ultraviolet radiation escalates, peaking at 11:00 and 12:00, where it reaches a high of 8. After this midday zenith, the UV Index begins to decline, dropping to 7 by 13:00 and gradually tapering off to 4 at both 14:00 and 15:00. By the late afternoon, it dwindles further to 2 at 16:00, before settling to a safe 1 by 17:00 and 18:00, ultimately reaching 0 by 19:00. This data underscores the importance of sun protection during the peak hours, especially between 10:00 and 14:00, when UV exposure can be most harmful.

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
08:004moderate30 min
09:006high25 min
10:007high25 min
11:008very high15 min
12:008very high15 min
13:007high25 min
14:005moderate30 min
15:004moderate30 min
16:002low45 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Hamatonbetsu

Throughout the year, the UV Index fluctuates markedly, with high-risk months typically occurring from April to August. During this period, the UV Index regularly reaches very high levels, particularly in May, June, and July, where a burn time of just 15 minutes indicates an increased risk of skin damage. As the year transitions towards autumn and winter, the UV Index drops to moderate and then low, with safer exposure times of 30 to 45 minutes in effect during the colder months. Visitors and residents are advised to take precautions during the high-risk months by wearing sunscreen, protective clothing, and seeking shade, especially during midday hours when the sun's rays are strongest. Staying informed about the daily UV Index can help ensure safe and enjoyable outdoor activities year-round.

Monthly Maximum UV Index for Hamatonbetsu, Japan

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Hamatonbetsu. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235689987521
Data source: Statistical UV Index data for Hamatonbetsu, 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 Hamatonbetsu UV Index with Other Japan Cities

The table above highlights how UV exposure in Hamatonbetsu 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.
Hamatonbetsu's solar exposure compared to other cities in Japan. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Hamatonbetsu235689987532
Sapporo UVI2367999108532
Yokohama UVI35891111111110754
Tokyo UVI35891111111110754
Nagoya UVI468101111111110753
Osaka UVI468111111121110753