UV Index in Trenggalek, Indonesia

Last updated: June 2, 2025

In the sunny coastal town of Trenggalek, Indonesia, being aware of the UV Index is crucial for ensuring your skin's health and preventing sunburn. Understanding UV levels is vital, especially as the region's tropical climate presents heightened exposure risks. With peak UV readings reaching 11 around midday, residents and visitors must stay informed to protect themselves from harmful rays. By monitoring the UV Index, you can enjoy Trenggalek's beautiful beaches and vibrant outdoor activities while safeguarding your skin for years to come.

Hourly UV Index in Trenggalek

The UV Index starts off low at 7:00 AM with a reading of 1, making it a safe time to be outdoors. As the sun rises higher, the index climbs dramatically, peaking at 11 by 11:00 AM—a clear indicator that sun protection is essential during this time. Although it remains high at 10 at 12:00 PM, there's a gradual decline from 1:00 PM, where it drops to 8. By mid-afternoon, it further decreases to 6 at 2:00 PM and continues to dwindle until it reaches 0 after 6:00 PM. The data highlights the importance of being sun-smart during the peak hours of 10 AM to 2 PM, when UV exposure is at its highest, ensuring you stay safe while enjoying the outdoors.

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	9	very high	15 min
11:00	11	extreme	10 min
12:00	10	very high	15 min
13:00	8	very high	15 min
14:00	6	high	25 min
15:00	3	moderate	30 min
16:00	1	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 Trenggalek

The UV Index data indicates consistently extreme exposure levels throughout the year, with a notable high-risk period from January to April and again in September to November, where values reach up to 16 in October. Visitors and residents alike should be particularly vigilant during these months, as the burn time remains a rapid 10 minutes across all months analyzed. It is essential to adopt protective measures such as wearing sunscreen, hats, and protective clothing when outdoors, regardless of the month, to minimize the risk of skin damage from the sun's rays.

Monthly Maximum UV Index for Trenggalek, Indonesia

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

The table above highlights how UV exposure in Trenggalek 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.

Trenggalek'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
Trenggalek	15	15	15	14	12	11	11	13	15	16	15	15