UV Index in Jepara, Indonesia

Last updated: June 2, 2025

In Jepara, Indonesia, understanding the UV Index is essential for protecting your skin and maintaining overall health. With the region's tropical Af climate, residents and visitors face heightened risks of sunburn and long-term skin damage, especially during peak UV hours. The UV Index often reaches alarming levels—topping at 11 midday—making it crucial to stay informed about daily UV exposure. By recognizing and adapting to these UV levels, you can take proactive steps to safeguard your skin—because knowledge is the first line of defense against harmful sun rays.

Hourly UV Index in Jepara

The UV Index rises sharply throughout the morning, starting from a modest 1 at 07:00 and making a steady climb to reach its peak of 11 at both 11:00 and 12:00. During this prime time, sun protection is essential to safeguard against harmful rays. As the afternoon progresses, the index begins to decline, dropping to 10 at 13:00 and then tapering off to 4 by 15:00. By late afternoon, the UV Index diminishes significantly, falling to 1 by 17:00 and ultimately reaching 0 at 18:00 and 19:00. This trend emphasizes the importance of planning outdoor activities for early morning or late afternoon to enjoy the sun safely!

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	5	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	10	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 Jepara

The UV Index throughout the year remains consistently high, indicating extreme exposure levels, particularly from January to April when the index peaks at 16. May marks a slight decrease to 13, followed by a gradual decline to 11 in June. However, despite lower readings in the summer months, the UV Index stays notably elevated, reaching 14 in September and remaining above 15 towards the end of the year. The high-risk months for sunburn are primarily the early months of the year, making it crucial for visitors and residents to take precautionary measures. It is advisable to wear sunscreen, protective clothing, and UV-blocking sunglasses, and to limit direct sun exposure, especially during peak hours, to protect against harmful effects.

Monthly Maximum UV Index for Jepara, Indonesia

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

The table above highlights how UV exposure in Jepara 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.

Jepara'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
Jepara	15	16	16	15	13	11	12	12	14	15	15	14