UV Index in Ongko, Indonesia

Last updated: June 2, 2025

Understanding the UV Index is essential for residents and visitors of Ongko, Indonesia. With a tropical climate that often sees elevated UV levels, awareness of these indices can significantly aid in preventing sunburn and protecting long-term skin health. On a typical day, UV exposure peaks around noon with indices reaching as high as 10, making it crucial to stay informed. By knowing when to seek shade or apply sunscreen, you can enjoy the beauty of Ongko while keeping your skin safe from harmful UV rays.

Hourly UV Index in Ongko

The UV Index throughout the day presents a compelling narrative of sun exposure, peaking at a staggering 10 at 12:00 PM, indicating a need for caution. As the sun rises, the UV Index gradually climbs from 1 at 7:00 AM to a notable 4 by 9:00 AM. The ascent continues, reaching 9 by 11:00 AM, before hitting its maximum at noon. However, as the afternoon progresses, the intensity wanes, with readings dropping to 7 by 2:00 PM and eventually falling to 1 by 5:00 PM. As twilight approaches, the Index dips to 0 after 6:00 PM, promising safe evening conditions. Engaging with the sun requires awareness; ensure you're 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	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	9	very high	15 min
12:00	10	very high	15 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 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