UV Index in Biak, Indonesia

Last updated: June 2, 2025

Understanding the UV Index in Biak, Indonesia is essential for safeguarding your skin and overall health. With the region's tropical Af climate, residents and visitors can experience heightened UV exposure, especially during peak hours from 10 AM to 2 PM, when the index reaches a maximum of 12—a severe risk for sunburn. By staying informed about daily UV levels, you can take necessary precautions to protect yourself from harmful rays, ensuring your time outdoors is both safe and enjoyable. Stay vigilant and embrace the sun with knowledge!

Hourly UV Index in Biak

At dawn, the UV Index starts low at 1 around 7 AM, gradually rising to 3 by 8 AM. However, from 9 AM, it begins to climb steeply, reaching a peak of 12 at noon, indicating a time for caution and sun protection. The intensity begins to wane in the afternoon, dropping to 8 at 2 PM, and further declining to 5 by 3 PM. As the day winds down, the UV Index lowers significantly to 2 at 4 PM, then 1 at 5 PM, finally fading to 0 after 6 PM. This fluctuation illustrates a clear pattern of midday sun strength, encouraging outdoor enthusiasts to stay vigilant during 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	6	high	25 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 Biak

Throughout the year, UV Index values remain consistently high, indicating extreme exposure categories with a burn time of just 10 minutes across all months. The highest UV Index readings occur from February to April, peaking at 17, making these months the highest risk for sunburn and skin damage. While the index slightly decreases in the summer months of June and July, it still remains at 12, indicating a need for precaution. As the year progresses into the fall and winter, values gradually lower but remain in the 14 to 15 range. Visitors and residents are advised to take protective measures year-round, including wearing sunscreen, protective clothing, and sunglasses, especially during the high-risk months of February through April. Staying informed about UV levels can help mitigate the risk of harm from sun exposure.

Monthly Maximum UV Index for Biak, Indonesia

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

The table above highlights how UV exposure in Biak 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.

Biak'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
Biak	15	16	17	17	14	12	12	14	15	15	14	13