UV Index in Jepun, Indonesia

Last updated: July 2, 2025

In Jepun, Indonesia, being aware of the UV Index is essential for protecting your skin and overall health. Understanding UV levels helps you prevent sunburn and long-term skin damage, ensuring you enjoy the beautiful tropical climate without undue risk. With a climate characterized by high sun exposure, particularly from 10 AM to 2 PM when the UV Index peaks at 11, the potential for harmful effects is significant. Knowing when the UV levels are highest can empower residents and visitors alike to take appropriate precautions and enjoy their time outdoors safely.

Hourly UV Index in Jepun

As the sun rises, the UV Index climbs steadily, starting at a gentle 1 at 7:00 AM. By 8:00 AM, it reaches 3, marking the beginning of increased sun exposure. The day continues to heat up, with the index peaking at a remarkable 11 from 11:00 AM to 12:00 PM, indicating a high risk for harm from unprotected sun exposure. As the afternoon sets in, it gradually declines, dropping to 6 by 2:00 PM and subsequently to 3 by 3:00 PM. As the sun begins to descend, the index returns to a safer 1 by 4:00 PM and tapers off to 0 after 6:00 PM. This hourly trend underscores the importance of sun protection during the midday hours when the UV exposure is at its highest.

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	1	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	11	extreme	10 min
13:00	9	very high	15 min
14:00	6	high	25 min
15:00	3	moderate	30 min
16:00	1	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Jepun

The UV Index indicates that the highest risk months for UV exposure are January through April, where values remain consistently at 14-15 (extreme) with a burn time of just 10 minutes. Notably, September through December also exhibit high UV levels of 15. As such, both residents and visitors are strongly advised to take precautionary measures year-round, applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak sun hours. Staying informed about UV levels is crucial to minimizing the risk of skin damage throughout the year.

Monthly Maximum UV Index for Jepun, Indonesia

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

The table above highlights how UV exposure in Jepun compares to other major locations across Indonesia. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Jepun's solar exposure compared to other cities in Indonesia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Surabaya UVI	13	15	14	12	12	10	11	12	14	13	13	13
Bekasi UVI	14	16	16	14	11	10	10	11	13	15	14	13
Jakarta UVI	14	16	16	14	11	10	10	11	13	15	14	13
Medan UVI	13	15	15	15	14	12	12	13	14	14	13	12
Jepun	14	15	15	14	12	11	11	13	15	15	15	15
Bandung UVI	15	16	16	15	12	11	11	12	14	15	15	14