UV Index in Umpak, Indonesia

Last updated: June 2, 2025

In Umpak, Indonesia, understanding the UV Index is essential for maintaining skin health and preventing sunburn, especially given the region's tropical climate with its intense sun exposure. Knowing the daily UV levels helps residents and visitors alike make informed decisions about outdoor activities, particularly between 10 AM and 2 PM, when indices peak at an overwhelming 10—a critical threshold for skin safety. By being aware of these UV risks, you can better protect yourself and enjoy the beautiful sun-soaked days Umpak has to offer.

Hourly UV Index in Umpak

The UV Index reveals a significant morning to afternoon rise in solar intensity, peaking at a striking 10 between 11:00 AM and 12:00 PM. Starting from a modest 2 at 7:00 AM, the index climbs steadily, reaching 6 by 9:00 AM and hitting 9 at 10:00 AM. As the sun reaches its zenith, the UVI holds steady at 10, highlighting a period when sun protection becomes crucial. By 1:00 PM, the index begins its gradual decline, dropping to 8, and easing further to 5 by 2:00 PM. As the day progresses into the late afternoon and evening, the UV Index decreases significantly, falling to 1 by 4:00 PM and dipping to 0 by 6:00 PM. This data underscores the importance of being sun-smart during the peak hours of 11:00 AM to 1:00 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	4	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	10	very high	15 min
12:00	10	very high	15 min
13:00	8	very high	15 min
14:00	5	moderate	30 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 Umpak

The UV Index in the region shows extreme levels from January through April, reaching a peak of 16 in October. This indicates that from January to April and again in September, October, and December, visitors and residents are at high risk for UV exposure, with a dangerously short burn time of just 10 minutes. May sees a decline to an index of 12, though it remains extreme, while June experiences a slight reduction to 10, classified as very high. The peak exposure months, where caution should be exercised, are February, March, September, and October. It is essential for everyone to take precautions during these high-risk months, such as wearing protective clothing, applying sunscreen regularly, and seeking shade during peak sun hours.

Monthly Maximum UV Index for Umpak, Indonesia

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

The table above highlights how UV exposure in Umpak 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.

Umpak'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
Bandung UVI	15	16	16	15	12	11	11	12	14	15	15	14
Umpak	14	15	15	14	12	10	12	13	15	16	14	15