UV Index in Shinjo, Japan

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Shinjo, Japan, where the climate can intensify sun exposure throughout the year. Awareness of UV levels helps in preventing sunburn and promoting overall skin health, safeguarding you from harmful effects linked to excessive UV radiation. With typical summer days peaking at a UV Index of 10 during midday hours, Shinjo’s climate poses specific exposure risks. By staying informed about the UV Index in your area, you can enjoy the outdoors while protecting your skin from damage.

Hourly UV Index in Shinjo

As the sun rises, the UV Index begins its ascent, starting at a mild 2 by 07:00. By 08:00, it escalates to 4, hinting that it’s time to apply some sunscreen. The intensity peaks at 10 around 11:00 and 12:00, making midday the most crucial time for sun protection. After this high, the index gently declines, dropping to 8 at 13:00 and further to 6 by 14:00, suggesting the danger is easing. As the afternoon progresses, the UV levels diminish, reaching 4 at 15:00, until they settle down to a mere 1 by 17:00 and 0 by 19:00. Throughout the day, it’s essential to stay vigilant and shield your skin during 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.
Time	UVI	Category	Time to Burn
07:00	2	low	45 min
08:00	4	moderate	30 min
09:00	6	high	25 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	10	very high	15 min
13:00	8	very high	15 min
14:00	6	high	25 min
15:00	4	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Shinjo

Throughout the year, seasonal changes in the UV Index indicate varying levels of sun exposure risk. The high-risk months are primarily from April to August, where the UV Index peaks at 9-11 and exposure category ranges from very high to extreme, resulting in a burn time as short as 10 minutes during July and August. In contrast, the winter months of January, February, November, and December feature a moderate UV Index of 3-4, with a longer burn time of 30 minutes. Residents and visitors should take precautions during the high-risk months, such as seeking shade, wearing protective clothing, and using sunscreen, especially between 11 AM and 4 PM when the sun’s rays are most intense. As sun exposure can lead to skin damage, being cautious during peak UV periods is essential for maintaining skin health.

Monthly Maximum UV Index for Shinjo, Japan

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Shinjo. 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 Shinjo, 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 Shinjo UV Index with Other Japan Cities

The table above highlights how UV exposure in Shinjo 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.

Shinjo'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
Shinjo	3	4	7	9	9	10	11	11	9	6	4	3
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