UV Index in Kobayashi, Japan

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Kobayashi, Japan, where the sun can be both a source of vitality and a risk to skin health. With the Cfa climate providing ample sunshine throughout the year, being aware of UV levels helps safeguard against sunburn while promoting overall skin wellness. On a typical day, UV readings can soar dramatically, peaking at 12 around noon, emphasizing the importance of sun safety measures. By keeping an eye on the UV Index, you can enjoy the beautiful outdoors without compromising your skin's health!

Hourly UV Index in Kobayashi

The UV Index throughout the day showcases a dynamic shift in sun intensity, peaking at 12 around noon. Beginning with a gentle 2 at 7:00 AM, the index steadily increases, hitting 11 by 11:00 AM as the sun climbs higher. By 12:00 PM, the sun reaches its zenith at 12, marking the highest UV exposure, making sun safety a priority. As the afternoon progresses, from 1:00 PM to 3:00 PM, the UV Index gradually decreases to 9 by 2:00 PM and 7 by 3:00 PM. The day winds down with a notable drop in intensity, returning to a mild 1 by 6:00 PM, emphasizing that the safest time to enjoy the sun is before noon or after 4:00 PM.

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	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	12	extreme	10 min
13:00	11	extreme	10 min
14:00	9	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 Kobayashi

Throughout the year, UV index levels show significant variation, with the highest risk months being May through September, where the index reaches an extreme level of 12 and a burn time as short as 10 minutes. Notably, March and April also pose high risks with a very high index of 10. In contrast, the UV index drops to moderate levels in January (5) and December (4), allowing for safer sun exposure. Visitors and residents are advised to remain vigilant during the high and extreme UV months, applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade, particularly between 10 AM and 4 PM when UV radiation is strongest.

Monthly Maximum UV Index for Kobayashi, Japan

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

The table above highlights how UV exposure in Kobayashi 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.

Kobayashi'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
Kobayashi	5	6	10	10	12	12	12	12	11	8	6	4