UV Index in Wakimachi, Japan

Last updated: July 2, 2025

Understanding the UV Index in Wakimachi, Japan is crucial for protecting your skin from harmful ultraviolet radiation. As the sun's intensity varies throughout the day, familiarizing yourself with UV levels can help prevent sunburn and long-term skin damage. In this Cfa climate zone, Wakimachi experiences significant UV exposure, especially between 11:00 AM and 1:00 PM, when the index peaks at a striking 12. Being aware of these fluctuations allows residents and visitors alike to take the necessary precautions and enjoy the sun safely while maintaining healthy skin.

Hourly UV Index in Wakimachi

The UV Index throughout the day exhibits a dramatic rise, peaking at 12 around noon. Starting from a humble 2 at 7:00 AM, the intensity steadily climbs as the sun ascends. By 10:00 AM, it reaches 9, signaling that sun protection is essential. The zenith occurs at 11:00 AM with a staggering 11, followed closely by 12 at noon, making it crucial to seek shade and wear sunscreen. The index begins to taper off in the afternoon, descending to 6 by 3:00 PM, and then falls further to 1 as evening sets in. This trend underscores the importance of monitoring UV levels to ensure safe sun exposure at its peak.

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	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	4	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 Wakimachi

Throughout the year, UV exposure levels vary significantly, with the highest risks typically occurring in the late spring to summer months. From April through August, the UV Index reaches extreme levels of 11 to 12, indicating that even short exposure (as little as 10 minutes) can result in skin damage. The highest-risk months are April, May, June, July, and August, where it's crucial for both visitors and residents to take protective measures such as wearing sunscreen, hats, and protective clothing. As summer transitions to fall, UV levels begin to decline, with an Index of 10 in September, followed by 7 in October and 6 in November. Visitors and residents should remain vigilant, especially during these peak months, to ensure their safety and well-being under the sun. In the winter months (December and January), the UV Index drops to 4, indicating a moderate risk, allowing for longer burn times of 30 minutes.

Monthly Maximum UV Index for Wakimachi, Japan

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

The table above highlights how UV exposure in Wakimachi 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.

Wakimachi'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
Wakimachi	4	6	8	11	11	12	12	12	10	7	6	4