UV Index in Medan, Indonesia

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Medan, Indonesia, where high humidity and tropical temperatures create a unique climate. As Medan tends to experience elevated UV exposure, particularly during midday hours, being aware of the UV levels can help prevent sunburn and protect skin health. With the UV Index peaking at 12 during noon, it's essential to stay informed about the risks associated with sun exposure. By monitoring the UV Index, you can take necessary precautions and enjoy the vibrant outdoor life while keeping your skin safe!

Hourly UV Index in Medan

The UV Index throughout the day showcases a dramatic rise and fall in sun exposure risks. **As the sun climbs, the index starts at a modest 1 at 07:00, escalating to a notable 2 by 08:00. However, from 09:00, it surges to a peak of 12 at both 12:00 and 13:00, indicating the highest risk for skin damage. Fortunately, this intense exposure dips sharply after 14:00, settling at 10 and then tapering off to 6 by 15:00. As evening approaches, the index falls back down to a safe 1 by 17:00, and eventually drops to 0 by 19:00. This clear pattern emphasizes the importance of sun safety during the midday hours when the UV levels reach their zenith.

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	4	moderate	30 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	6	high	25 min
16:00	3	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 Medan

The UV Index exhibits remarkably high levels throughout the year, with particularly extreme values from January to April, where the index peaks at 15. The high-risk months for UV exposure are consequently January, February, March, and April, all maintaining the same burn time of just 10 minutes. As summer approaches, the index slightly decreases, yet it remains in the extreme exposure category. Notably, visitors and residents should exercise caution during these months by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade to minimize the risk of harmful UV exposure. Staying vigilant is crucial, as even on less intense days, the potential for skin damage remains significant.

Monthly Maximum UV Index for Medan, Indonesia

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

The table above highlights how UV exposure in Medan 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.

Medan'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	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