UV Index in Tome, Japan

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Tome, Japan, especially given the city's Cfa climate which brings warm summers and moderate sunshine. The UV Index serves as a vital tool in helping you gauge the intensity of ultraviolet radiation, enabling you to take proactive measures to prevent sunburn and protect your skin health. Throughout the day, UV exposure can significantly vary, peaking at a level of 9 between 11:00 AM and 1:00 PM, making it essential to stay informed and plan outdoor activities accordingly. By keeping an eye on the UV levels, you can enjoy the beautiful outdoors while safeguarding your skin from potential harm.

Hourly UV Index in Tome

As the day begins, the UV Index starts at a moderate 3 at 7:00 AM, gradually rising to 4 by 8:00 AM. The intensity peaks sharply at 11:00 AM and 12:00 PM, reaching an impressive 9, highlighting the importance of sun protection during these hours. Following this peak, the index declines gradually, dropping to 6 by 2:00 PM and continuing its descent to 4 by 3:00 PM. By late afternoon, the UV exposure significantly diminishes, with values falling to 2 at 4:00 PM, to 1 by 5:00 PM, and finally resting at a safe 0 by 7:00 PM. Overall, the data underscores a clear trend: the midday hours demand vigilant sun safety practices.

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	4	moderate	30 min
09:00	7	high	25 min
10:00	8	very high	15 min
11:00	9	very high	15 min
12:00	9	very high	15 min
13:00	8	very high	15 min
14:00	6	high	25 min
15:00	4	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 Tome

Throughout the year, UV exposure fluctuates significantly, with the highest risk months occurring from April to August. During this period, the UV Index reaches very high to extreme levels, peaking at 11 in July, where burn time is as little as 10 minutes. In contrast, from January to February and November to December, the UV Index remains at a moderate level (3-4), allowing for 30-minute burn times. To protect against harmful UV radiation, it is crucial for both visitors and residents to take precautions, especially during high-risk months—apply broad-spectrum sunscreen, wear protective clothing, and seek shade during peak sun hours.

Monthly Maximum UV Index for Tome, Japan

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

The table above highlights how UV exposure in Tome 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.

Tome'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
Tome	3	4	6	8	9	10	11	10	9	6	4	3
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