UV Index in Bojonegoro, Indonesia

Last updated: July 2, 2025

In Bojonegoro, Indonesia, being aware of the UV Index is crucial for protecting your skin from the sun's harmful rays. Understanding the UV levels throughout the day can help you prevent painful sunburns and maintain overall skin health. With Bojonegoro's tropical climate, the risk of UV exposure is heightened, especially during peak hours when the index reaches a maximum of 11 around midday. By staying informed about the UV Index, residents and visitors can take proactive measures, ensuring a safer and more enjoyable outdoor experience under the Indonesian sun.

Hourly UV Index in Bojonegoro

As the sun rises, the UV Index climbs steadily, starting at a gentle 1 at 7:00 AM. By 8:00 AM, it reaches 3, marking the beginning of increased sun exposure. The day continues to heat up, with the index peaking at a remarkable 11 from 11:00 AM to 12:00 PM, indicating a high risk for harm from unprotected sun exposure. As the afternoon sets in, it gradually declines, dropping to 6 by 2:00 PM and subsequently to 3 by 3:00 PM. As the sun begins to descend, the index returns to a safer 1 by 4:00 PM and tapers off to 0 after 6:00 PM. This hourly trend underscores the importance of sun protection during the midday hours when the UV exposure is at its highest.

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	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 Bojonegoro

The UV Index shows significant seasonal variation, with extreme levels persisting from January through April, and again from July to October. The months of January to April feature UV Index values ranging from 14 to 15, indicating a burn time of just 10 minutes. Although the intensity drops slightly in June with a very high index of 10, it quickly returns to extreme levels in July and remains high until October. High-risk months, where prolonged sun exposure can lead to severe skin damage, include January through April and July through September. Residents and visitors are strongly advised to take precautions during these months by wearing protective clothing, applying sunscreen frequently, and seeking shade whenever possible, especially during midday hours.

Monthly Maximum UV Index for Bojonegoro, Indonesia

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

The table above highlights how UV exposure in Bojonegoro 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.

Bojonegoro'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
Bojonegoro	14	15	15	13	11	10	11	13	14	14	14	14
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