UV Index in Noshiro, Japan

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents and visitors in Noshiro, Japan, where the temperate climate can lead to significant levels of ultraviolet radiation. With UV levels peaking at 10 during midday, awareness is key to preventing sunburn and promoting long-term skin health. This knowledge allows individuals to protect themselves from the harmful effects of excessive UV exposure, particularly during the warm summer months. As Noshiro typically experiences high UV risks, being informed about daily fluctuations in the UV Index can help ensure a safe and enjoyable outdoor experience.

Hourly UV Index in Noshiro

At sunrise, the UV Index starts at a gentle 2 at 7:00 AM, gradually climbing to a moderate 4 by 8:00 AM. As the day progresses, the sun's intensity peaks with a striking 10 at both 11:00 AM and 12:00 PM, indicating a high risk of harm from unprotected sun exposure. By 1:00 PM, the index remains strong at 9, but starts to decline to 7 by 2:00 PM. Early afternoon light gives way to a safer environment as the index sinks to 5 at 3:00 PM, then further drops to 3 by 4:00 PM. As the sun sets, the UV Index descends into the low range, resting at 1 by 5:00 PM and tapering off to 0 after 7:00 PM—a clear reminder to protect your skin during those peak sun 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.
Time	UVI	Category	Time to Burn
07:00	2	low	45 min
08:00	4	moderate	30 min
09:00	7	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Noshiro

Throughout the year, UV levels fluctuate significantly, with higher levels observed from March to September. The peak risk months are June, July, and August, where the UV Index reaches as high as 11, categorized as extreme, boasting a burn time of just 10 minutes. In spring, particularly April and May, the UV exposure escalates to very high levels (Index of 8-9), requiring heightened awareness. From October to March, UV Index values decrease, though residents and visitors should still take precautions in March (Index of 6) and October (Index of 6) due to higher risk levels. As a general guideline, it’s advisable to wear sunscreen and protective clothing, especially during peak hours, from March to August, to minimize sun exposure and reduce the risk of skin damage.

Monthly Maximum UV Index for Noshiro, Japan

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Noshiro. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Noshiro, 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 Noshiro UV Index with Other Japan Cities

The table above highlights how UV exposure in Noshiro 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.

Noshiro's solar exposure compared to other cities in Japan. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sapporo UVI	2	3	6	7	9	9	9	10	8	5	3	2
Noshiro	3	4	6	8	9	10	10	11	8	6	4	2
Yokohama UVI	3	5	8	9	11	11	11	11	10	7	5	4
Tokyo UVI	3	5	8	9	11	11	11	11	10	7	5	4
Nagoya UVI	4	6	8	10	11	11	11	11	10	7	5	3
Osaka UVI	4	6	8	11	11	11	12	11	10	7	5	3