UV Index in Mersam, Indonesia

Last updated: June 2, 2025

Understanding the UV Index in Mersam, Indonesia, is crucial for protecting your skin and overall health. As the region experiences a tropical climate, elevated UV levels—especially from 10 AM to 2 PM when the index peaks at 12—pose significant risks of sunburn and long-term skin damage. Being aware of these UV levels helps residents and visitors alike make informed decisions about sun exposure, ensuring a safer and healthier experience under the Indonesian sun. Stay vigilant and embrace sun safety to enjoy all that Mersam has to offer!

Hourly UV Index in Mersam

The UV Index throughout the day showcases a dramatic rise and fall in intensity, peaking at 12 around noon. Starting from a mild 1 at 07:00, it escalates to a noticeable 5 by 09:00 and skyrockets to a sizzling 11 at 11:00. The highest point occurs just after lunchtime, hitting 12 at 12:00, marking the most critical time for sun exposure. As the afternoon progresses, the index gradually declines, tapering off to 5 by 15:00, before retreating back to a safe 1 by 17:00. By 19:00, the UV Index drops to a 0, signaling a transition from day to night, reminding us to stay vigilant about sun safety during those 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	5	moderate	30 min
10:00	8	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	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Mersam

Throughout the year, the UV Index remains extremely high, with values consistently between 12 and 16, indicating a significant risk of harm from unprotected sun exposure. The high-risk months extend from January to May, where the UV Index peaks at 16 in March, while also reaching 15 in both February and April. Even during the summer months, the UV Index remains elevated, with values of 12 to 14, particularly in August and September. With a burn time of just 10 minutes across all months, it is crucial for both visitors and residents to take proactive measures against sun exposure, such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours. Staying informed and vigilant about UV levels is essential to prevent skin damage and maintain health year-round.

Monthly Maximum UV Index for Mersam, Indonesia

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

The table above highlights how UV exposure in Mersam 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.

Mersam'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
Mersam	14	15	16	15	13	12	12	14	14	14	14	14