UV Index in Kin, Japan

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Kin, Japan, where the subtropical Cfa climate keeps sun exposure high, especially during summer months. Awareness of UV levels is essential not only for preventing sunburn but also for maintaining long-term skin health. With peak UV readings soaring to 13 around midday, it's vital to take protective measures during peak hours to safeguard against harmful effects. By keeping an eye on the UV Index, you can enjoy the beautiful outdoors of Kin while minimizing your risk of skin damage.

Hourly UV Index in Kin

From 07:00 to 19:00, the UV Index exhibits a pronounced peak during midday hours, soaring to 13 between 12:00 and 13:00. The intensity rises steadily from a mild 1 at 07:00 to a substantial 12 at 11:00, indicating peak sun exposure just before noon. As the afternoon progresses, the index gradually declines, dropping to 5 by 16:00 and further to a safe 1 as the sun sets. With a dramatic increase during the late morning and early afternoon, it's crucial to stay protected against UV rays, especially when the index hits 9 and above between 10:00 and 14:00.

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	1	low	45 min
08:00	3	moderate	30 min
09:00	5	moderate	30 min
10:00	9	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Kin

Throughout the year, the UV Index exhibits significant seasonal changes, with the highest levels occurring from March to September. During these months, the UV Index consistently reaches an extreme level of 12 to 13, resulting in a burn time of just 10 minutes—a clear warning for both residents and visitors to take precautions. Notably, February to October also features high to very high UV exposure, particularly in the spring and summer months. Therefore, it is crucial to limit sun exposure during these high-risk months, wear adequate sun protection such as sunscreen, hats, and sunglasses, and seek shade whenever possible to reduce the risk of harmful UV damage. In contrast, the winter months (January, November, December) present lower UV levels, with a maximum index of 9, but precautions should still be taken, especially for prolonged outdoor activities.

Monthly Maximum UV Index for Kin, Japan

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

The table above highlights how UV exposure in Kin 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.

Kin'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
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
Kin	7	9	12	12	13	13	13	13	13	9	9	6