UV Index in Kertorejo, Indonesia

Last updated: July 2, 2025

In Kertorejo, Indonesia, awareness of the UV Index is essential for maintaining skin health and preventing sunburn. With the region's tropical climate and consistently high UV exposure, understanding UV levels can help residents and visitors alike protect themselves from harmful rays. The UV Index can reach a peak of 11 during midday, signaling an extreme risk of harm from unprotected sun exposure. By staying informed and taking necessary precautions, you can enjoy the beautiful outdoors while safeguarding your skin against the sun's powerful effects.

Hourly UV Index in Kertorejo

The UV Index throughout the day showcases a fascinating rise and fall, indicating when to bask safely in the sun. Early morning starts off gently, with a maximum UV Index of 1 at 07:00, gradually increasing to 3 by 08:00. The sun reaches its zenith between 10:00 and 12:00, peaking at an intense 11, warning sunbathers of potential overexposure. As the afternoon progresses, UV levels begin to recede; by 15:00, it drops to 3 before settling back to 1 by 17:00. As the sun sets, the Index finally dips to 0 by 18:00, indicating a safe end to sunlit adventures. Keep in mind the importance of protection 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	7	high	25 min
10:00	10	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	9	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 Kertorejo

The UV Index shows consistently high levels throughout the year, peaking in March with an index of 16. The high-risk months are from January to April and again in September to November, where the UV Index is rated as extreme with a burn time of just 10 minutes. With such intensity, it is crucial for both visitors and residents to take protective measures, such as wearing sunscreen with high SPF, donning protective clothing, and seeking shade whenever possible, especially during peak sun hours. To ensure safety during outdoor activities, remain vigilant and plan accordingly to minimize sun exposure.

Monthly Maximum UV Index for Kertorejo, Indonesia

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

The table above highlights how UV exposure in Kertorejo 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.

Kertorejo'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
Kertorejo	15	15	16	14	12	11	11	13	15	15	15	15