UV Index in San Javier, Chile

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of San Javier, Chile, where the Csb climate can lead to varying UV exposure throughout the day. As sunlight intensity fluctuates, being aware of UV levels helps you take essential precautions against sunburn and promotes long-term skin health. Notably, midday UV Index levels peak at 4, indicating a moderate risk of harm from unprotected sun exposure, making it vital to stay informed and protect yourself during those hours. Embrace the sunny days wisely—your skin will thank you!

Hourly UV Index in San Javier

The UV Index throughout the day reveals a dynamic pattern of sun intensity. In the morning, it starts off low, peaking at 1 by 09:00. As the sun climbs higher, we see a steady increase with the index reaching 3 by 11:00. The highest point occurs from 12:00 to 13:00, where the UV Index hits a robust 4, indicating a need for sun protection during those hours. Following this peak, the index gradually declines, returning to 2 at 15:00, and then dropping back down to 0 by 18:00, marking the end of significant UV exposure for the day. Plan your outdoor activities accordingly to stay safe under 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	0	low	45 min
08:00	1	low	45 min
09:00	1	low	45 min
10:00	2	low	45 min
11:00	3	moderate	30 min
12:00	4	moderate	30 min
13:00	4	moderate	30 min
14:00	3	moderate	30 min
15:00	2	low	45 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 San Javier

The UV Index experiences significant seasonal fluctuations, peaking during the winter months and again in late fall. High-risk months for UV exposure include January, February, March, November, and December, all categorized as extreme, with a remarkably short burn time of just 10 minutes. As we transition into spring, April shows a decrease to high levels with a burn time of 25 minutes, followed by moderate levels in May, June, July, and August. However, with September and October presenting very high UV levels, it's crucial for visitors and residents to remain vigilant. To protect your skin, it is advised to seek shade, wear protective clothing, and use broad-spectrum sunscreen, especially during the peak months and high UV days.

Monthly Maximum UV Index for San Javier, Chile

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

The table above highlights how UV exposure in San Javier compares to other major locations across Chile. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

San Javier's solar exposure compared to other cities in Chile. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Santiago UVI	14	12	11	7	5	3	4	6	8	11	12	14
San Javier	14	13	11	7	5	3	4	5	8	10	13	14
Valparaiso UVI	14	12	11	8	5	4	4	6	8	11	12	14
Vina del Mar UVI	14	12	11	8	5	4	4	6	8	11	12	14
Puente Alto UVI	15	14	12	8	6	4	6	8	11	12	14	15
Antofagasta UVI	15	15	13	10	8	6	7	9	11	14	15	15