UV Index in Kajen, Indonesia

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Kajen, Indonesia, where the tropical climate brings both sunshine and potential risks for skin damage. Awareness of UV levels not only helps in preventing painful sunburn but also plays a significant role in maintaining long-term skin health. In Kajen, peak UV readings can reach as high as 11 around noon, dramatically increasing the risk of harm from the sun's rays. By knowing when and how to protect yourself, you can enjoy the beautiful Indonesian sun while safeguarding your skin!

Hourly UV Index in Kajen

The UV Index for the day displays a striking pattern of intensity, peaking at 11 around 12:00 PM. Early morning hours start on a low note, with a maximum of only 1 at 07:00 AM. As the sun climbs higher, the index escalates rapidly, hitting 6 by 09:00 AM and soaring to an impressive 10 at 11:00 AM. From there, it reaches its apex at 12:00 PM, before gradually declining in the afternoon. By 3:00 PM, the index drops to 3, further decreasing to 1 by 5:00 PM and finally settling at 0 by 6:00 PM, indicating a much safer level as the day winds down. It’s a clear reminder to stay protected 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	9	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	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 Kajen

Throughout the year, the UV Index in this region consistently remains in the extreme exposure category, with values ranging from 12 to 15. The high-risk months for sun exposure are from January to March, when the UV Index peaks at 14-15. Even as the year progresses, the UV Index remains notably high, with values remaining at 12 in May, August, and November. Residents and visitors should exercise caution and take preventive measures throughout the year, particularly during these months. Always wear broad-spectrum sunscreen, protective clothing, and seek shade whenever possible, especially during peak sun hours. With a burn time of just 10 minutes, it is crucial to prioritize skin safety to prevent damage from the intense UV radiation.

Monthly Maximum UV Index for Kajen, Indonesia

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

The table above highlights how UV exposure in Kajen 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.

Kajen'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
Kajen	14	15	15	13	12	11	11	12	14	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