UV Index in Sonaf, Indonesia

Last updated: July 2, 2025

In Sonaf, Indonesia, awareness of the UV Index is crucial for maintaining your skin health and preventing sunburn. Understanding UV levels helps residents and visitors alike to take necessary precautions against harmful ultraviolet rays, particularly during peak hours when the index soars—a staggering 11 at noon. Characterized by its tropical climate, Sonaf experiences high UV exposure risks year-round, making it essential to stay informed and protected against sun damage. By keeping an eye on the UV Index, you can enjoy the beautiful sunshine while safeguarding your skin’s well-being!

Hourly UV Index in Sonaf

The UV Index shows a dramatic rise in intensity as the day unfolds, starting from a gentle 1 at 07:00. By 09:00, it escalates to 5, indicating a moderate level of UV radiation. The peak occurs between 11:00 and 12:00, where the index reaches a blazing 11, signaling a very high risk of harm from unprotected sun exposure. As the afternoon progresses to 13:00, it slightly dips to 10 before steadily declining through 14:00 with a value of 7, to a much safer 2 by 16:00. The evening brings relief as the UV Index wanes to 1 by 17:00, effectively diminishing to 0 after 18:00. Remain cautious during the intense hours, particularly around midday, to protect your skin from UV damage!

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	9	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	10	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 Sonaf

The UV Index reveals significant seasonal changes in sun exposure, with extreme levels occurring consistently from January through November. The highest risk months are February, March, July, August, and September, all averaging a UV Index of 16 or higher, resulting in a burn time of just 10 minutes. Even in June, while the Index lowers slightly to 10, the exposure remains categorized as very high, allowing for a bit more time before burning at 15 minutes. It is crucial for both residents and visitors to prioritize sun safety throughout the year, particularly between January and November, by wearing protective clothing, applying high-SPF sunscreen regularly, and seeking shade during peak sunlight hours.

Monthly Maximum UV Index for Sonaf, Indonesia

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

The table above highlights how UV exposure in Sonaf 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.

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