UV Index in Shitara, Japan

Last updated: July 2, 2025

Understanding the UV Index in Shitara, Japan, is crucial for maintaining skin health and preventing sunburn, especially during the peak hours of UV exposure. As a region in the temperate Cfa climate zone, Shitara experiences significant fluctuations in UV levels throughout the day, with a maximum index of 12 typically recorded around noon. Raising awareness about these UV levels can help residents and visitors alike take proactive measures to protect their skin from harmful effects. By knowing when to seek shade or apply sunscreen, you can enjoy the beautiful outdoors while keeping your skin safe from the sun’s damaging rays.

Hourly UV Index in Shitara

Starting off the day, the UV Index begins at a modest 2 at 07:00, gradually rising to a moderately high 4 by 08:00. As the sun climbs higher, the intensity peaks with a striking 12 at 12:00, marking the sun’s strongest rays. The Index remains remarkably high, peaking at 11 from 11:00 to 13:00, prompting sun safety precautions. By 14:00, the value drops to 8, then continues to decline, ending the day at a minimal 0 by 19:00. With this data, it's clear that the sun calls for protection during the midday hours, especially between 10:00 and 13:00, making sunscreen and shade a must for outdoor activities!

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	4	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	8	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Shitara

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 Shitara, Japan

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

The table above highlights how UV exposure in Shitara 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.

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