UV Index in Merdey, Indonesia

Last updated: August 1, 2025

Understanding the UV Index is crucial for the residents and visitors of Merdey, Indonesia, where the tropical climate can lead to significant UV exposure. With peak UV levels reaching as high as 13 around noon, awareness of these levels is vital for preventing sunburn and protecting skin health. By staying informed about daily UV fluctuations, you can take essential precautions to enjoy the sun safely. Given Merdey’s high UV risks, particularly during midday, knowing when to seek shade or apply sunscreen can make all the difference in maintaining skin health and overall well-being.

Hourly UV Index in Merdey

As the day unfolds, the UV Index rises dramatically, peaking at 13 around noon. Starting from a gentle 1 at 7:00 AM, it escalates to a moderate 2 by 8:00 AM and then takes a significant leap to 5 at 9:00 AM. By 10:00 AM, it reaches 8, intensifying further to a striking 11 at 11:00 AM. Just an hour later, the sun's rays hit their zenith with an impressive 13. The index then gradually declines, marking 12 at 1:00 PM, 9 at 2:00 PM, and 6 by 3:00 PM. As the afternoon wanes, the UV Index diminishes to 3 at 4:00 PM, and by sunset, it returns to a safe 1 at 7:00 PM, ultimately dropping to 0 by 8:00 PM. Remember to protect your skin 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	3	moderate	30 min
09:00	6	high	25 min
10:00	10	very high	15 min
11:00	13	extreme	10 min
12:00	14	extreme	10 min
13:00	13	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 Merdey

The UV Index remains extremely high throughout the year, with particularly elevated values from January to April and a notable spike in February and March, reaching 17. For visitors and residents, the highest risk months are therefore January through April, where the burn time is just 10 minutes at this level of UV exposure. Although the index slightly decreases in the summer, it stays elevated until October, with values ranging from 12 to 15. It is crucial for individuals to take protective measures such as wearing sunscreen, hats, and protective clothing, especially during peak hours, to mitigate the increased risk of skin damage year-round. Always remember to check the local UV index daily to stay informed and safe.

Monthly Maximum UV Index for Merdey, Indonesia

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

The table above highlights how UV exposure in Merdey 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.

Merdey'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
Merdey	15	17	17	17	14	12	13	14	15	15	14	14