UV Index in Sumurbatu, Indonesia

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Sumurbatu, Indonesia, as it plays a vital role in safeguarding skin health and preventing sunburn. With a tropical climate characterized by strong sunlight, the UV exposure can reach levels as high as 11 during midday, underscoring the importance of staying informed about UV levels. By being aware of these fluctuations, especially during peak hours, individuals can take essential precautions against harmful effects, ensuring healthy and enjoyable outdoor experiences in this vibrant region.

Hourly UV Index in Sumurbatu

The UV Index throughout the day paints a vivid picture of solar intensity, peaking sharply in the late morning. At 07:00, the UV Index starts off modestly at 1, but by 08:00, it climbs to 3, indicating a gradual increase in sunlight. As the day progresses, it reaches 5 at 09:00 and then escalates dramatically to 8 by 10:00. The sun's strength hits its zenith at 11:00 with a striking 10, peaking even further at 12:00, where it soars to 11—an optimal time for sun protection. After this high, the UV Index begins to wane, falling back to 10 at 13:00, before declining steadily to 4 at 15:00, 2 at 16:00, and eventually drifting down to 1 by 17:00. As dusk approaches, the UV Index drops to 0 by 18:00, signaling a safe end to sun exposure for the day. Such daily fluctuations highlight the importance of being mindful of UV levels, especially during midday 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	5	moderate	30 min
10:00	8	very high	15 min
11:00	10	very high	15 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 Sumurbatu

Throughout the year, UV Index levels remain extremely high, peaking at 16 during the winter months of February, March, and October. This means that January through April and again in October are considered high-risk months for sun exposure, with a consistent burn time of just 10 minutes. Even during the summer, UV levels remain significant, with values around 11 to 13. It is crucial for both visitors and residents to take protective measures, such as wearing broad-spectrum sunscreen, protective clothing, and seeking shade, especially during these high-risk months, to mitigate the risk of skin damage from UV radiation.

Monthly Maximum UV Index for Sumurbatu, Indonesia

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

The table above highlights how UV exposure in Sumurbatu 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.

Sumurbatu'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
Sumurbatu	15	16	16	15	13	11	11	12	14	16	15	14