UV Index in Kawamoto, Japan

Last updated: May 3, 2025

Understanding the UV Index in Kawamoto, Japan is essential for safeguarding your skin and overall health. With UV levels peaking at 11 during midday, awareness of these fluctuations can prevent painful sunburns and long-term skin damage. Kawamoto's humid subtropical climate amplifies the risk of UV exposure, particularly in the warmer months when locals and visitors enjoy outdoor activities. By staying informed about the daily UV Index, you can take proactive measures to protect yourself, ensuring that your time under the sun is both enjoyable and safe.

Hourly UV Index in Kawamoto

The UV Index paints a vivid picture of the sun's intensity throughout the day. Starting with a gentle 2 at 7:00 AM, the index climbs steadily, reaching 3 by 8:00 AM. As the sun rises higher, it peaks at an impressive 11 at noon, signaling a time when sun protection is crucial. The index begins to taper off in the afternoon, with readings of 10 at 1:00 PM and 8 at 2:00 PM, before gradually decreasing to 6 at 3:00 PM. By late afternoon, the UV Index returns to a more moderate 3 at 4:00 PM, and continues to decline, settling at 1 by 6:00 PM. It’s clear that the midday sun demands respect, making awareness of UV levels essential for outdoor safety.

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	8	very high	15 min
11:00	10	very high	15 min
12:00	11	extreme	10 min
13:00	10	very high	15 min
14:00	8	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 Kawamoto

Throughout the year, the UV Index experiences notable fluctuations, with significant increases during the spring and summer months. March marks the beginning of high-risk UV exposure, peaking in July and August at a severe UV Index of 12, where the recommended burn time is just 10 minutes. Both April and May maintain an extreme category, urging outdoor enthusiasts to exercise caution. From September onward, UV levels gradually decline, but the risk remains high into early fall. Residents and visitors are advised to protect themselves, especially during the high-risk months of March to September, by applying sunscreen, wearing protective clothing, and seeking shade to minimize sun exposure. As the year progresses, understanding and adapting to these changes can help ensure safety and enjoyment in outdoor activities.

Monthly Maximum UV Index for Kawamoto, Japan

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

The table above highlights how UV exposure in Kawamoto 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.

Kawamoto'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
Kawamoto	4	5	8	11	11	11	12	12	10	7	5	3
Osaka UVI	4	6	8	11	11	11	12	11	10	7	5	3