UV Index in Gero, Indonesia

Last updated: June 2, 2025

Understanding the UV Index in Gero, Indonesia is crucial for protecting your skin and overall health from the sun's harmful rays. With a tropical climate characterized by high UV exposure, awareness of UV levels can be the difference between enjoying the sunny outdoors and suffering from painful sunburns. During the peak hours of sunlight, particularly between 10 AM and 2 PM when the UV Index can soar to a severe 11, it's essential to take precautions to safeguard your skin. By keeping an eye on local UV forecasts, you can enjoy Gero's beautiful beaches and vibrant landscapes while minimizing your risk of skin damage.

Hourly UV Index in Gero

As the sun rises, the UV Index steadily increases, starting at a mild 1 at 7:00 AM. By 9:00 AM, it surges to a moderate 5, signaling the need for some sun protection. The intensity peaks dramatically at 12:00 PM with a daunting 11, marking the height of solar exposure where precautions are essential. As the afternoon progresses, the index begins to decline, but still remains significant at 9 by 1:00 PM. By 3:00 PM, it drops to 4, and the late afternoon sees it further fade to a gentle 1 by 5:00 PM. By sunset, the UV Index diminishes to 0, providing a reassuring end to a day of sun. Stay safe and enjoy the sunshine!

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	10	very high	15 min
12:00	11	extreme	10 min
13:00	9	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 Gero

Throughout the year, the UV Index remains notably high, with extreme levels persisting from January to April and again in July, August, September, October, and November. The high-risk months for UV exposure are consistently January through April, as well as July through September, where the burn time is alarmingly short—approximately 10 minutes for most of these periods. Even in June, while slightly lower at a UV Index of 10, the risk remains very high with a burn time of 15 minutes. To ensure safety, visitors and residents should take proactive measures such as wearing protective clothing, applying sunscreen regularly, and seeking shade, especially during peak sun hours. Being vigilant about UV exposure is essential throughout the year given these consistent, elevated levels.

Monthly Maximum UV Index for Gero, Indonesia

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

The table above highlights how UV exposure in Gero 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.

Gero'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
Gero	15	16	16	14	12	10	12	13	15	15	15	14