UV Index in Ube, Japan

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Ube, Japan, where the climate offers a mix of sunshine and humidity typical of the Cfa zone. With midday UV levels reaching as high as 11, awareness of these levels can be essential for preventing sunburn and safeguarding skin health. By grasping the daily UV fluctuations—from moderate levels in the morning to intense rays around noon—locals can take proactive measures to protect themselves, ensuring their outdoor activities remain enjoyable and safe throughout the year.

Hourly UV Index in Ube

The UV Index paints a vivid picture of the sun's intensity throughout the day. Starting with a gentle 2 at 7:00 AM, the index climbs steadily, reaching 3 by 8:00 AM. As the sun rises higher, it peaks at an impressive 11 at noon, signaling a time when sun protection is crucial. The index begins to taper off in the afternoon, with readings of 10 at 1:00 PM and 8 at 2:00 PM, before gradually decreasing to 6 at 3:00 PM. By late afternoon, the UV Index returns to a more moderate 3 at 4:00 PM, and continues to decline, settling at 1 by 6:00 PM. It’s clear that the midday sun demands respect, making awareness of UV levels essential for outdoor safety.

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	8	very high	15 min
11:00	10	very high	15 min
12:00	11	extreme	10 min
13:00	10	very high	15 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	1	low	45 min

Monthly UV Index Trends in Ube

Throughout the year, the UV Index experiences significant seasonal variation, peaking during the summer months. High-risk months for UV exposure are from March to August, where the index reaches extreme levels of 11 to 12, with burn times as short as 10 minutes. In contrast, the UV index is lower and safer from November to February, with moderate exposure and burn times of 30 minutes in January and February. To protect yourself, it is crucial to apply sunscreen, wear protective clothing, and seek shade during peak UV hours, particularly in high-risk months. Stay vigilant and prioritize skin safety, especially from March through August when the chances of sunburn and long-term skin damage are significantly heightened.

Monthly Maximum UV Index for Ube, Japan

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

The table above highlights how UV exposure in Ube 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.

Ube'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
Ube	4	5	8	10	11	11	12	12	10	7	6	3