UV Index in Tsuma, Japan

Last updated: May 3, 2025

In Tsuma, Japan, being aware of the UV Index is essential for protecting your skin and promoting overall health. Understanding UV levels can help prevent sunburn and long-term skin damage, which can lead to more serious issues down the line. With a Cfa climate characterized by humid summers, Tsuma faces elevated UV exposure, particularly around midday when the index peaks at a staggering 12. This makes it crucial for residents and visitors alike to stay informed about UV conditions and take necessary precautions to enjoy the sun safely.

Hourly UV Index in Tsuma

As the sun rises, the UV Index steadily climbs, peaking at 12 around noon, indicating a high risk of harm from unprotected sun exposure. From 07:00 with a low index of 2, it swiftly escalates to 11 by 11:00. The intensity continues with 12 during 12:00, urging everyone to take protective measures. After this zenith, the UV Index begins to decline, falling to 9 at 14:00, and tapering off to a gentle 1 by 18:00, where daylight gives way to twilight. Stay safe and enjoy the sun wisely!

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	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	3	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 Tsuma

As the seasons change, so do the UV index levels, significantly affecting sun exposure and safety. Throughout the year, high-risk months generally occur from March to September, where the UV index peaks at 12, classified as extreme exposure, particularly during May through August. During these months, burn time is as short as 10 minutes, necessitating vigilant sun protection measures. Visitors and residents are urged to use sunscreen, wear protective clothing, and seek shade during peak hours to mitigate the risk of skin damage. In contrast, the UV index is lower in January, February, October, and November, where exposure is categorized as moderate to high; however, sunscreen remains advisable during all months to ensure skin health year-round.

Monthly Maximum UV Index for Tsuma, Japan

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

The table above highlights how UV exposure in Tsuma 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.

Tsuma'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
Tsuma	5	6	9	10	12	12	12	12	11	8	6	4