UV Index in Motobu, Japan

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Motobu, Japan, where the tropical climate brings both beautiful days and elevated sun exposure risks. As the UV Index can reach a staggering 13 at midday, being aware of the UV levels helps in preventing sunburn and protecting skin health. Awareness of these levels can equip you to make informed decisions, from planning outdoor activities to applying sunscreen, ensuring you enjoy Motobu's stunning beaches and landscapes while staying safe from harmful UV rays.

Hourly UV Index in Motobu

The UV Index for the day exhibits a striking daytime peak, rising steadily from a gentle 1 at 07:00 to an intense 13 by 12:00. As the sun reaches its zenith, the 11:00 and 12:00 hours warn of heightened exposure, with the index hitting its maximum at 13:00 before beginning its gradual decline. By 15:00, it slips to 7, reminding us that even in the afternoon, protection is vital. As the day winds down, the UV levels fall back to a safe 1 by 18:00, ensuring a return to safer conditions for evening activities. Stay vigilant and protect your skin during those midday hours!

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	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	7	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 Motobu

Throughout the year, the UV Index experiences significant fluctuations, with the highest risk months occurring from March to September, where the index peaks at 13, indicating an extreme exposure level with a burn time of only 10 minutes. February also sees a notably high index of 9 (very high), while October and November remain elevated at 9 and 8, respectively, both categorized as very high as well. To ensure safety, it is essential for both visitors and residents to take precautions during these high-risk months, such as applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours. From January to December, being mindful of the UV levels and adjusting outdoor activities accordingly can help reduce the risk of skin damage and encourage safer sun exposure practices.

Monthly Maximum UV Index for Motobu, Japan

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

The table above highlights how UV exposure in Motobu 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.

Motobu'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
Motobu	7	9	11	12	13	13	13	13	13	9	8	6