UV Index in Jaha, Indonesia

Last updated: July 2, 2025

Understanding the UV Index is crucial for the residents of Jaha, Indonesia, where the tropical Af climate brings intense sunlight year-round. Recognizing UV levels not only helps in preventing sunburn but also plays a vital role in maintaining long-term skin health. In Jaha, the UV Index peaks at a high of 10 during midday hours, indicating significant risk for unprotected skin. By staying informed about daily UV exposure, you can enjoy the beautiful weather while effectively safeguarding your health against the harmful effects of the sun.

Hourly UV Index in Jaha

As the sun rises, the UV Index begins its daily ascent, starting at a gentle 1 at 07:00. It climbs steadily, reaching 2 by 08:00, before making a significant leap to 5 at 09:00. The intensity peaks around midday, hitting a remarkable 10 from 11:00 to 13:00—a clear signal to protect your skin. Following this zenith, the UV Index gradually declines; it drops to 7 by 14:00, then further decreases to 4 at 15:00, and continues its descent to 2 and 1 in the late afternoon. By 18:00 and 19:00, the UV levels settle at 0, signaling that the sun is setting and the day’s UV exposure has passed. Remember, during peak hours, it’s crucial to wear sunscreen and seek shade to ensure your safety in the sun!

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	2	low	45 min
09:00	5	moderate	30 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	10	very high	15 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 Jaha

The UV Index experiences significant seasonal changes, with notably high-risk months dominated by extreme exposure levels from January through December, peaking at 16 in February and March. Throughout the year, the burn time remains dangerously low, with most months allowing only 10 minutes of sun exposure before risking harm, except for July which permits slightly longer exposure of 15 minutes. Given these levels, it is crucial for visitors and residents to take precautions year-round, such as wearing protective clothing, applying high-SPF sunscreen, and seeking shade during peak hours, especially from January to April and during the late summer months. Prioritizing skin safety is essential to enjoy outdoor activities without the adverse effects of UV radiation.

Monthly Maximum UV Index for Jaha, Indonesia

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

The table above highlights how UV exposure in Jaha 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.

Jaha'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
Jaha	15	16	16	15	12	11	10	11	13	15	15	14
Bandung UVI	15	16	16	15	12	11	11	12	14	15	15	14