UV Index in Shizukuishi, Japan

Last updated: May 3, 2025

In Shizukuishi, Japan, being aware of the UV Index is crucial for safeguarding your skin against harmful ultraviolet rays. Understanding these levels not only helps in preventing painful sunburns but also plays a significant role in promoting long-term skin health. Nestled in a Dfb climate zone, Shizukuishi experiences unique weather patterns that can lead to varying UV exposure risks throughout the year. With peak UV Index readings reaching up to 9 around noon, it's essential to stay informed and proactive about sun protection to enjoy the beautiful outdoors safely.

Hourly UV Index in Shizukuishi

As the sun rises, the UV Index begins its ascent, peaking at 11:00 AM and 12:00 PM with a blistering 9. The day starts gently, with 07:00 AM registering a modest 2, but by 09:00 AM, it climbs to a moderate 6. The intensity escalates, hitting 8 at 10:00 AM and reaching its zenith shortly after noon. After this peak, the index gradually dips, easing down to 6 by 2:00 PM, before falling further to 4 at 3:00 PM. As evening approaches, the UV radiation wanes significantly, dropping to 2 by 4:00 PM and near zero after sunset, signaling a shift in the skies. Remember to protect your skin during those peak hours!

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
07:002low45 min
08:004moderate30 min
09:006high25 min
10:008very high15 min
11:009very high15 min
12:009very high15 min
13:008very high15 min
14:006high25 min
15:004moderate30 min
16:002low45 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Shizukuishi

Throughout the year, the UV Index experiences notable fluctuations, with high-risk months occurring between April and August. In April and May, the UV index peaks at 9, categorized as very high, requiring quick precautions with just 15 minutes of burn time. June and July sustain a UV Index of 10, also indicating very high levels, while August reaches an extreme UV Index of 11, minimizing safe sun exposure to just 10 minutes. In contrast, the UV levels are moderate from January to February and again from October to December, notably lowering burn times back to 30 minutes. Visitors and residents are strongly advised to protect their skin with sunscreen, hats, and protective clothing especially during the highest UV Index periods, ensuring they avoid prolonged sun exposure during peak hours. Stay informed and prioritize skin safety!

Monthly Maximum UV Index for Shizukuishi, Japan

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Shizukuishi. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec346991010119643
Data source: Statistical UV Index data for Shizukuishi, 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 Shizukuishi UV Index with Other Japan Cities

The table above highlights how UV exposure in Shizukuishi 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.
Shizukuishi's solar exposure compared to other cities in Japan. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Sapporo UVI2367999108532
Shizukuishi346991010119643
Yokohama UVI35891111111110754
Tokyo UVI35891111111110754
Nagoya UVI468101111111110753
Osaka UVI468111111121110753