UV Index in Kumai, Indonesia

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Kumai, Indonesia, where tropical sun exposure can pose significant health risks. With high UV levels peaking around midday—reaching a maximum of 11—awareness becomes essential for effective sunburn prevention and maintaining long-term skin health. Kumai's humid tropical climate means that UV radiation is a constant threat, especially during the peak hours from 10 AM to 1 PM. By staying informed about UV levels, you can better protect yourself and enjoy the beautiful Indonesian outdoors safely.

Hourly UV Index in Kumai

As the sun rises and begins to assert its strength, the UV Index increases rapidly throughout the morning. At 7:00 AM, it starts at a modest 2, but by 9:00 AM, it leaps to a notable 7. The peak intensity hits high noon, with 11 at both 11:00 AM and 12:00 PM, indicating a critical time for sun safety. After that, the index begins to drop, falling to 6 by 2:00 PM and further declining toward the evening, finally reaching 0 by 7:00 PM. This data starkly illustrates the importance of sun protection during the midday hours when UV exposure is at its most dangerous.

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	7	high	25 min
10:00	10	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 Kumai

Throughout the year, UV Index levels remain consistently high, categorizing the exposure as extreme. Notably, from February to April, the UV Index peaks at 16, indicating a significant risk of skin damage with a burn time of just 10 minutes. As summer approaches, the index slightly declines to 12-13 in June through August but remains in the extreme category. In the fall, the UV Index rises again to 15 in September and October before tapering off slightly in November and December. Given this information, it is crucial for both visitors and residents to take protective measures against UV exposure, especially during the high-risk months of February through April. It is recommended to utilize sunscreen, wear protective clothing, and seek shade whenever possible to minimize the risk of skin damage throughout the year.

Monthly Maximum UV Index for Kumai, Indonesia

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

The table above highlights how UV exposure in Kumai 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.

Kumai'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
Kumai	14	16	16	14	14	12	12	13	15	15	14	13