UV Index in Sagae, Japan

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Sagae, Japan, where the climate offers both beautiful days and significant UV exposure risks. By monitoring UV levels, you can effectively prevent sunburn and promote long-term skin health. Sagae, with its Dfa climate, experiences fluctuating UV Index values throughout the day, peaking at 11 between 11:00 AM and 12:00 PM. Being aware of these levels empowers the community to take proactive measures, ensuring safe outdoor activities while enjoying the stunning landscapes of this region.

Hourly UV Index in Sagae

During the day, the UV Index experiences a significant peak, reaching a maximum of 11 between 11:00 AM and 12:00 PM, indicating a very high risk of harm from unprotected sun exposure. The index rises steadily from 3 at 7:00 AM to hit 9 at 10:00 AM, before surging past 10 just before noon. As the afternoon progresses, the intensity of UV rays begins to decline, dropping to 7 by 2:00 PM and further down to 5 by 3:00 PM. Transitioning into the evening, the threat diminishes significantly, with the UV Index plummeting to 1 by 5:00 PM and eventually reaching 0 after 7:00 PM. It's essential to take precautions during the peak hours to protect your skin from harmful UV radiation!

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
09:007high25 min
10:009very high15 min
11:0011extreme10 min
12:0011extreme10 min
13:0010very high15 min
14:007high25 min
15:005moderate30 min
16:003moderate30 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Sagae

Throughout the year, the UV Index experiences significant fluctuations, peaking during the summer months. January and December see a moderate UV Index of 3, with a burn time of 30 minutes. As early as February, the Index rises to 5, indicating a continued moderate exposure. However, March marks the onset of high risk with an Index of 7, reducing burn time to 25 minutes. The real concern arises from April to August, where the Index reaches very high (9-10) and even extreme levels (11) in July and August, with dangerously short burn times of just 10-15 minutes. The season begins to taper off in September (UV Index 9) and October (UV Index 6), before returning to moderate levels in November and December. For visitors and residents, it is crucial to take protective measures, especially from April to August, by seeking shade, wearing protective clothing, and applying sunscreen rigorously to prevent harmful UV exposure.

Monthly Maximum UV Index for Sagae, Japan

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Sagae. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec35710101111119643
Data source: Statistical UV Index data for Sagae, 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 Sagae UV Index with Other Japan Cities

The table above highlights how UV exposure in Sagae 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.
Sagae's solar exposure compared to other cities in Japan. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Sapporo UVI2367999108532
Sagae3579101011119643
Yokohama UVI35891111111110754
Tokyo UVI35891111111110754
Nagoya UVI468101111111110753
Osaka UVI468111111121110753