UV Index in Sumur, Indonesia

Last updated: June 2, 2025

In Sumur, Indonesia, being aware of the UV Index is essential for protecting your skin and promoting overall health. Understanding UV levels helps in preventing sunburn and reduces the risk of long-term skin damage, especially in a region with a tropical climate like Sumur, where UV exposure can be intense. With peak values soaring to 11 around noon, it's crucial to be vigilant about sun protection, ensuring you enjoy the brilliant sunshine safely while keeping your skin in top condition.

Hourly UV Index in Sumur

At the break of dawn, the UV Index begins its gentle rise, starting at a mild 1 at 07:00. By 08:00, it escalates to a moderate 3, signaling the sun’s growing intensity. Things heat up as the clock strikes 09:00, reaching a 5, before peaking at a striking 11 by 11:00 and 12:00—the time for sun protection is now! As the afternoon wanes, the index gradually declines: down to 9 at 13:00, then settling at 7 by 14:00. The evening brings relief with a drop to 4 by 15:00, further to 2 at 16:00, and eventually fading to 1 at 17:00. By 18:00, the UV implications disappear altogether with a 0, making the evening safe for outdoor activities. Remember, it’s crucial to stay protected during those peak hours!

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	5	moderate	30 min
10:00	8	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	4	moderate	30 min
16:00	2	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 Sumur

The UV Index experiences significant highs throughout the year, remaining in the extreme exposure category from January to December. Notably, the highest UV levels occur from February to March and in October, with indices reaching 16, marking these months as high-risk for skin damage. Visitors and residents should be aware that burn time is only 10 minutes regardless of the month, indicating a consistent risk for sunburn. To protect against harmful UV exposure, it is essential to seek shade, wear protective clothing, use broad-spectrum sunscreen, and limit time outdoors during peak sunlight hours, particularly from February to March and October. Staying vigilant year-round is crucial given the persistent high UV levels.

Monthly Maximum UV Index for Sumur, Indonesia

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

The table above highlights how UV exposure in Sumur 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.

Sumur'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
Sumur	15	16	16	15	12	11	11	13	15	16	15	14