UV Index in Minano, Japan

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Minano, Japan, where sunny days are common due to its temperate Cfa climate. Being aware of UV levels helps in preventing sunburns and long-term skin damage, ensuring that outdoor activities remain safe and enjoyable. With peak UV levels reaching a high of 11 between 11:00 AM and 1:00 PM, it's vital to take protective measures during these hours to safeguard your skin from harmful exposure. Whether you’re planning a hike or a leisurely day outdoors, knowing the local UV Index can make a significant difference in your skin health and overall well-being.

Hourly UV Index in Minano

As the sun rises, the UV Index begins to climb, starting at a mild 3 at 07:00. By 08:00, it reaches a moderate 5, signaling that it's time to start thinking about sun protection. The intensity peaks at 11 from 11:00 to 12:00, marking the highest risk period of the day. As the afternoon progresses, the UV Index gradually declines, dropping to 8 at 14:00 before dwindling to 5 by 15:00. As the day winds down, the index continues to fall, hitting a low of 1 from 16:00 to 18:00, and finally reaching 0 after 19:00. It’s essential to stay vigilant and take precautions during the peak hours to enjoy the sunshine safely!

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	3	moderate	30 min
08:00	5	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Minano

Throughout the year, the UV Index demonstrates notable seasonal changes, with the most intense exposure occurring from April to August. During these months, the UV Index reaches extreme levels (10-12), significantly reducing the burn time to just 10 minutes. March and September also pose risks with very high levels (8-10), allowing for a burn time of only 15 minutes. Consequently, February and October present high levels (6-7), where protective measures are still advised with adjusted burn times of 25 minutes. Residents and visitors should exercise caution and protect their skin, especially during the high-risk months of April through August, by using sunscreen, wearing protective clothing, and limiting sun exposure during peak hours.

Monthly Maximum UV Index for Minano, Japan

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

The table above highlights how UV exposure in Minano 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.

Minano'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
Minano	4	6	8	10	11	11	12	11	10	7	5	4