UV Index in Ongko, Indonesia

Last updated: May 3, 2025

Understanding the UV Index is crucial for the residents of Ongko, Indonesia, where sun exposure is a significant part of daily life. With the region's tropical Aw climate, UV levels can soar, particularly between 10 AM and 2 PM, when they reach a peak of 12—indicating a very high risk of harm from unprotected sun exposure. By being aware of the UV Index, you can take proactive steps to prevent sunburn and protect your skin health, ensuring you enjoy the beautiful outdoors safely. So, whether you’re planning a beach day or simply strolling through town, knowing the UV levels can make all the difference in keeping your skin safe and healthy.

Hourly UV Index in Ongko

As the day unfolds, the UV Index begins to rise steadily, peaking at 12 around noon, indicating a high risk of harm from unprotected sun exposure. Starting from a mild 1 at 07:00, it climbs to 2 by 08:00, then surges to a significant 9 by 10:00. The intensity continues to escalate, reaching its maximum at 11 by 11:00, just before noon. After a slight dip to 8 by 14:00, the UV Index begins its gradual decline, dropping to 2 by 16:00, and finally resting at 0 by 18:00—a clear indication that the sun's rays are no longer a concern. To protect your skin, it's crucial to seek shade and apply sunscreen 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	2	low	45 min
09:00	5	moderate	30 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	8	very high	15 min
15:00	5	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 Ongko

Throughout the year, the UV Index remains notably high, particularly from January through April, where it consistently hits 15-16 in the extreme exposure category, meaning a burn time of just 10 minutes. This hazardous UV level continues into July and August, peaking again in September at 15 and maintaining high levels in October and November. The only slight relief is observed in June with a UV Index of 10 (very high exposure) with a marginally longer burn time of 15 minutes. Residents and visitors should exercise caution and implement protective measures—such as wearing sunscreen, protective clothing, and hats—especially from January to April, as well as during the summer months of July and August when UV levels remain dangerously high.

Monthly Maximum UV Index for Ongko, Indonesia

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

The table above highlights how UV exposure in Ongko 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.

Ongko'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
Ongko	15	16	15	15	12	10	11	13	15	15	14	14