UV Index in Bireun, Indonesia

Last updated: August 1, 2025

In Bireun, Indonesia, awareness of the UV Index is essential for maintaining skin health and preventing sunburn. The UV Index provides a clear indicator of the sun's strength, helping residents gauge their exposure and take necessary precautions. With Bireun's tropical climate, where UV levels can soar as high as 12 around noon, understanding these fluctuations becomes crucial for minimizing the risks of skin damage. By staying informed about UV levels, you can enjoy the sun safely while protecting your skin from harmful effects that can occur in this vibrant locale.

Hourly UV Index in Bireun

As the sun climbs higher in the sky, the UV Index surges, peaking at a sweltering 12 around noon. Early morning hours start off with a manageable index, registering only 1 at 7:00 and gradually rising to 4 by 9:00. However, the real intensity hits between 11:00 and 13:00, where it reaches its maximum of 12, signaling a critical period for sun exposure. As the afternoon wanes, the index begins to decline, dropping to 7 by 15:00 and tapering off to 1 by 18:00. Finally, after 19:00, it dips to a 0, marking a safe window for those looking to escape the sun’s harmful rays. Stay protected during peak hours for a safer and more enjoyable outdoor experience!

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	8	very high	15 min
11:00	12	extreme	10 min
12:00	14	extreme	10 min
13:00	14	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Bireun

Throughout the year, the UV Index remains consistently high, indicating a extreme exposure category and a quick burn time of just 10 minutes. However, the highest risk months are from February to May, where the UV Index peaks at 15. This level of intensity continues into March and April, maintaining the same dangerous standards. As summer approaches, the UV Index slightly decreases but remains elevated, with values between 12 and 14 in July through October. Given these persistent hazardous levels, it's crucial for both visitors and residents to take precautions such as wearing sunscreen, protective clothing, and limiting sun exposure during peak hours, particularly from February to May and during the summer months.

Monthly Maximum UV Index for Bireun, Indonesia

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

The table above highlights how UV exposure in Bireun 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.

Bireun'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
Bireun	13	15	15	15	15	13	12	14	14	14	13	12
Bandung UVI	15	16	16	15	12	11	11	12	14	15	15	14