UV Index in Miyake, Japan

Last updated: May 3, 2025

In Miyake, Japan, being aware of the UV Index is essential for protecting your skin and overall health. Understanding UV levels helps you take proactive steps against sunburn and long-term skin damage, making it crucial for both locals and visitors. With a Cfa climate, Miyake experiences varied UV exposure throughout the day, peaking at a potent 11 between 11:00 AM and 12:00 PM. This knowledge empowers you to enjoy the sun safely, ensuring you can bask in the island's natural beauty without risking your skin's health.

Hourly UV Index in Miyake

The UV Index today showcases a dramatic rise as the morning unfolds, starting at a gentle 2 at 07:00 AM. By 08:00 AM, it escalates to 5, and then peaks at a striking 11 from 11:00 AM to 12:00 PM—the sun is at its strongest during these hours. After the midday high, the index gracefully dips, dropping back to 10 at 1:00 PM, and then to 7 by 2:00 PM. In the afternoon, it continues to decline, reaching 5 at 3:00 PM and settling to a calmer 2 by 4:00 PM. As evening approaches, the UV intensity wanes further, with values dropping to 1 at both 5:00 PM and 6:00 PM, before fading to 0 by 7:00 PM. Remember to protect your skin during peak 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	2	low	45 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	7	high	25 min
15:00	5	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Miyake

Throughout the year, UV exposure varies significantly, highlighting the need for awareness among visitors and residents. High-risk months for UV exposure fall between March and August, where the UV Index reaches very high to extreme levels, particularly in May and July when it peaks at 12. The burn time during these months can be as little as 10 minutes, stressing the importance of protective measures like sunscreen and clothing. In contrast, January and December present a relatively lower risk, with a moderate UV Index of 4 and a burn time of 30 minutes. Therefore, as summer approaches, it is essential to remain vigilant against UV exposure and take necessary precautions, while also being aware of the seasonal decrease in UV risk during the winter months.

Monthly Maximum UV Index for Miyake, Japan

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

The table above highlights how UV exposure in Miyake 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.

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