UV Index in Kajen, Indonesia

Last updated: June 2, 2025

In Kajen, Indonesia, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels empowers residents and visitors alike to take proactive measures against sunburn and long-term skin damage, especially during peak hours when the index soars. Kajen's tropical climate contributes to consistently high UV exposure, with indices reaching a maximum of 10 around midday. By staying informed, you can enjoy the beautiful Indonesian sun while protecting yourself from its potentially harmful effects.

Hourly UV Index in Kajen

As the sun rises, the UV Index starts low at 1 at 07:00, making it a safe time for early birds. By 08:00, it climbs to 3, indicating a slight increase in UV exposure. The peak arrives sharply at 11:00 and 12:00, hitting a maximum of 10—a strong reminder to wear sunscreen and seek shade. Following this, the index gradually decreases, dipping to 6 by 14:00 and dropping further to 3 by 15:00. As the day winds down, UV levels return to a comfortable 1 by 16:00, fading to 0 by 18:00. This hourly pattern emphasizes the importance of midday protection while reminding us of the sun's dynamic presence throughout the day.

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	8	very high	15 min
11:00	10	very high	15 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 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