UV Index in Imari, Japan

Last updated: May 3, 2025

Understanding UV Index levels in Imari, Japan is crucial for safeguarding your skin and overall health. With the region's humid subtropical climate (Cfa), residents and visitors alike face higher UV exposure, especially during peak sunlight hours. The UV Index can soar to 11 around midday, indicating an extreme risk of harm from unprotected sun exposure. By staying informed about these levels, you can take preventative measures against sunburn and long-term skin damage, ensuring you enjoy the beautiful sunny days in Imari while taking care of your skin health.

Hourly UV Index in Imari

The UV Index today follows a dynamic trajectory, peaking dramatically as the sun climbs. Starting at a modest 1 at 07:00, it rises to 3 by 08:00 and then continues its ascent, reaching 5 by 09:00. The intensity escalates further, peaking at an impressive 11 at 12:00—a time when sun protection is crucial. As the afternoon wears on, the index moderately descends, dropping to 10 by 13:00 and gradually decreasing to 6 at 15:00. By 16:00, it falls to 4, before tapering off to 1 by 18:00 and remaining constant until 19:00. This hourly breakdown highlights the importance of being sun-smart during peak hours, especially when the index is at its highest!

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	5	moderate	30 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	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 Imari

The UV Index experiences significant fluctuations throughout the year, with the highest levels occurring from May to September, where it peaks at an extreme level of 12 in both July and August. This period marks the high-risk months for sun exposure, with a critical burn time of just 10 minutes. Conversely, the UV levels are more moderate in January and December, with a UV Index of 4 and a longer burn time of 30 minutes. Residents and visitors are advised to take proactive sun safety measures, particularly during the spring and summer months, including wearing sunscreen, protective clothing, and seeking shade during peak hours when the UV Index is highest.

Monthly Maximum UV Index for Imari, Japan

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

The table above highlights how UV exposure in Imari 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.

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