UV Index in Sidorejo, Indonesia

Last updated: June 2, 2025

Understanding the UV Index is essential for residents and visitors of Sidorejo, Indonesia, a region known for its warm Af climate. With UV levels peaking between 10 AM and 1 PM, reaching a high of 11, awareness of these readings can be crucial in preventing sunburn and promoting long-term skin health. By grasping how UV exposure varies throughout the day, locals can take proactive measures to protect themselves and enjoy the beautiful tropical environment safely. Remember, knowledge is your best defense against those harmful rays!

Hourly UV Index in Sidorejo

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 Sidorejo

Throughout the year, UV Index levels remain notably high, consistently classified as extreme across all months. The highest readings occur from January to April, peaking at 16, making this period particularly hazardous. May and June witness a slight decrease to 12 and 11, respectively, but the risk remains elevated even during summer months. August sees a resurgence to an index of 12, while September and October regain higher ratings of 14 and 15. Notably, November and December also maintain high levels of 15 and 14, respectively. Given the consistently high UV exposure, particularly from January to April, it is crucial for visitors and residents to take precautionary measures such as using sunscreen, wearing protective clothing, and avoiding direct sunlight during peak hours to mitigate the risk of sunburn and skin damage.

Monthly Maximum UV Index for Sidorejo, Indonesia

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

The table above highlights how UV exposure in Sidorejo 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.

Sidorejo'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
Sidorejo	15	16	16	15	12	11	11	12	14	15	15	14