UV Index in Nakamura, Japan

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Nakamura, Japan, where the warm Cfa climate can lead to significant UV exposure. With peak UV levels soaring to 12 in midday hours, awareness is key to preventing sunburn and protecting skin health. By monitoring the UV Index, you can effectively plan your outdoor activities, ensuring you're equipped with the necessary sun protection. As Nakamura enjoys sunny days, knowing the UV risks can help you enjoy the outdoors without compromising your wellbeing.

Hourly UV Index in Nakamura

The UV Index throughout the day reveals a striking pattern of solar intensity. Starting at 07:00, the index is a manageable 2, but it quickly climbs as the sun rises higher. By 08:00, it's at 4, and by 09:00, it reaches 6, signaling a push towards midday sun. The peak intensity strikes at 12:00 with a blistering 12, making it essential to seek shade and wear sunscreen. From this zenith, the index gradually declines: 11 at 13:00, 10 at 14:00, and finally dipping to 7 by 15:00. As daylight wanes, the UV levels fall rapidly, resting at 2 by 17:00 and dropping to a safe 1 by 18:00 and 19:00. Enjoy the sun, but be mindful of those 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	4	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	10	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 Nakamura

Throughout the year, UV exposure varies significantly, with the highest levels observed from March to September, indicating a seasonal increase in UV radiation. During this period, visitors and residents should be particularly cautious, as the UV Index reaches extreme levels of 12, especially from May to August, with a burn time as brief as 10 minutes. Even in October and November, the UV Index remains elevated, categorized as very high and high, respectively. To ensure safety, it's advisable to wear protective clothing, apply broad-spectrum sunscreen, and seek shade during peak sun hours, particularly in high-risk months from April to September. As the year progresses, individuals can take advantage of the lower UV indices from December to February, when burn times increase to 30 and 25 minutes, making sun safety less critical but still important.

Monthly Maximum UV Index for Nakamura, Japan

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

The table above highlights how UV exposure in Nakamura 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.

Nakamura'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
Nakamura	4	6	9	10	12	12	12	12	11	8	6	4