UV Index in Sidorejo, Indonesia

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Sidorejo, Indonesia, where the sun's rays can be surprisingly intense. With a tropical Aw climate, the region experiences elevated UV exposure, particularly during midday hours, with indices soaring to as high as 11 around 11:00 AM. Being aware of UV levels helps in effectively preventing sunburn and promoting overall skin health. With such significant daily fluctuations in UV intensity, familiarizing yourself with the UV Index not only empowers you to take proactive measures against skin damage but also enhances your outdoor enjoyment, ensuring you make the most of Sidorejo's sunny climate.

Hourly UV Index in Sidorejo

The UV Index for the day presents a dynamic picture of sun intensity, peaking sharply between 11:00 AM and 12:00 PM. At 7:00 AM, the index starts at a serene 1, but by 8:00 AM, it escalates to 4, indicating a need for some sun protection. The intensity continues to climb, reaching a robust 9 by 10:00 AM and hitting its maximum of 11 at 11:00 AM—a clear signal to seek shade and wear sunscreen. As the afternoon rolls in, the index gradually declines, falling to 8 by 1:00 PM and further down to 5 at 2:00 PM. By late afternoon, the numbers dwindle, with the UV Index dropping to 1 or less from 4:00 PM until sunset. This day highlights the essential rhythm of UV exposure, urging us to be sun-smart during those peak hours.

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	4	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	10	very high	15 min
13:00	8	very high	15 min
14:00	5	moderate	30 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 Sidorejo

The UV Index shows consistently high levels throughout the year, peaking in March with an index of 16. The high-risk months are from January to April and again in September to November, where the UV Index is rated as extreme with a burn time of just 10 minutes. With such intensity, it is crucial for both visitors and residents to take protective measures, such as wearing sunscreen with high SPF, donning protective clothing, and seeking shade whenever possible, especially during peak sun hours. To ensure safety during outdoor activities, remain vigilant and plan accordingly to minimize sun exposure.

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	15	16	14	12	11	11	13	15	15	15	15