UV Index in Morohongo, Japan

Last updated: June 2, 2025

In Morohongo, Japan, awareness of the UV Index is crucial for residents and visitors alike, as it plays a key role in safeguarding skin health. Understanding UV levels can prevent painful sunburns and reduce long-term damage to your skin. With Morohongo's temperate Cfa climate, UV exposure can peak dramatically during the day, reaching alarming levels of 11 around midday. Staying informed about the UV Index helps you take proactive measures, ensuring you enjoy the sun safely while protecting your skin from its harmful effects.

Hourly UV Index in Morohongo

As the sun rises, the UV Index begins its ascent, starting at a modest 2 at 7:00 AM. By 8:00 AM, it surges to 5, signaling the onset of midday sun exposure. The intensity peaks at 11 from 11:00 AM to 12:00 PM, making these hours crucial for sun protection. As the afternoon progresses, the index gradually declines, dipping to 9 at 1:00 PM, and then further to 7 by 2:00 PM. By late afternoon, at 5:00 PM, the UV Index drops to 5, and eventually settles at a low of 1 by 6:00 PM. Finally, as the sun sets, the UV Index returns to 0 by 7:00 PM. It's clear that during the peak hours of 11 AM to 12 PM, protective measures are highly recommended for safety under the sun.

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	5	moderate	30 min
09:00	7	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	9	very high	15 min
14:00	7	high	25 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Morohongo

Throughout the year, UV exposure varies significantly, necessitating careful planning for both visitors and residents. The high-risk months for UV radiation are from March to August, with the UV Index peaking at an extreme level of 11 during May, June, July, and August, where the recommended burn time is just 10 minutes. In contrast, January, November, and December present a moderate UV Index of 3 to 5, allowing for longer exposure times of 30 minutes. To ensure safety, it is crucial to wear sunscreen, protective clothing, and sunglasses during the high-risk months, and to seek shade whenever possible to minimize skin damage from excessive UV radiation.

Monthly Maximum UV Index for Morohongo, Japan

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

The table above highlights how UV exposure in Morohongo 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.

Morohongo'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
Morohongo	3	5	8	9	11	11	11	11	9	7	5	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