UV Index in Valparaiso, Chile

Last updated: July 2, 2025

Understanding the UV Index is essential for the residents of Valparaiso, Chile, as it serves as a crucial guide for sun safety and skin health. With its Csb climate, Valparaiso experiences varying UV levels throughout the day, peaking at 4 between 12:00 PM and 2:00 PM. By staying informed about UV exposure, you can effectively prevent sunburn, reduce the risk of skin damage, and enjoy the sun responsibly. Awareness of UV levels is particularly important in a city known for its vibrant outdoor culture, ensuring that both locals and visitors can soak up the beauty of this coastal gem while protecting their skin.

Hourly UV Index in Valparaiso

The UV Index throughout the day shows a gentle morning rise, starting at 0 at 07:00, then climbing to 1 by 08:00 and staying steady until it reaches 2 at 10:00. Midday brings the peak intensity, with the index soaring to 4 from 12:00 to 14:00, indicating a significant need for sun protection. As the afternoon wears on, the UV levels gradually decline, tapering back down to 1 by 16:00, before dropping to 0 after 18:00. This daily pattern highlights the importance of being mindful of UV exposure, especially between noon and early afternoon when the sun’s rays are at their strongest.

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	4	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 Valparaiso

Throughout the year, the UV Index exhibits significant seasonal variations, with extreme levels observed from January to March, as well as in October to December, where the burn time is a mere 10 minutes. April marks a transition to a very high exposure category with a burn time of 15 minutes. From May to July, the index drops to a moderate level, allowing for longer exposure times of 30 minutes. However, the index rises again in August and September, returning to high and very high categories, respectively. Visitors and residents are strongly advised to take precautions during the high-risk months of January to March, October to December, and during April and September when the UV exposure can still be substantial. Always wear protective clothing, use sunscreen, and seek shade whenever possible to mitigate the risks associated with extreme UV radiation.

Monthly Maximum UV Index for Valparaiso, Chile

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

The table above highlights how UV exposure in Valparaiso 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.

Valparaiso'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
Valparaiso	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