UV Index in Pematangsiantar, Indonesia

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Pematangsiantar, Indonesia, as it helps you stay informed about sun exposure levels and protect your skin from harmful UV radiation. As a tropical city in the Af climate zone, Pematangsiantar experiences consistently high UV levels, particularly between 11 AM and 1 PM, when the index can soar to 15—a significant risk for sunburn and long-term skin damage. By being aware of the UV Index in your area, you can take proactive steps to safeguard your skin health and enjoy the sun safely.

Hourly UV Index in Pematangsiantar

The UV Index for the day reveals an intense sun exposure as the hours progress. Beginning at a modest 1 at 07:00, the index swiftly climbs, peaking at a scorching 15 by 12:00. This brutal midday sun, reflected in the 13 at 11:00 and slightly dropping to 14 at 13:00, underscores the necessity for sun protection during these hours. As the afternoon wanes, a noticeable decline occurs, with values falling to 4 by 16:00 and tapering off to 1 by 17:00. The day concludes with a UV Index of 0 at 19:00, signaling the end of sun exposure. Stay protected 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	2	low	45 min
09:00	6	high	25 min
10:00	10	very high	15 min
11:00	13	extreme	10 min
12:00	15	extreme	10 min
13:00	14	extreme	10 min
14:00	12	extreme	10 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Pematangsiantar

The UV Index exhibits high levels of intensity throughout the year, particularly from January to March, when it peaks at 16, indicating an extreme exposure category. April through August maintains similarly elevated values, with slight fluctuations, and the burn time remains consistently low at just 10 minutes. As we transition into the fall months, the UV Index remains high, particularly in September and October, both at 15, before gradually decreasing to 14 in November and 12 in December. **Visitors and residents are advised to take precautions—including seeking shade, wearing protective clothing, and applying sunscreen—especially during these high-risk months from January to September when the UV Index is particularly severe. Regular checks on UV levels can further ensure safety while enjoying outdoor activities.

Monthly Maximum UV Index for Pematangsiantar, Indonesia

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

The table above highlights how UV exposure in Pematangsiantar 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.

Pematangsiantar'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
Pematangsiantar	13	15	16	15	15	12	13	14	15	15	14	12