UV Index in La Union, Chile

Last updated: June 2, 2025

In La Union, Chile, understanding the UV Index is crucial for safeguarding your skin against harmful sun exposure. With the region's Cfb climate, characterized by mild conditions, the UV levels can vary throughout the day, peaking at a modest 2 around midday. Awareness of these levels is essential, as even low UV readings can lead to sunburn and long-term skin health issues. By staying informed about the UV Index in La Union, you can take proactive steps to protect yourself and enjoy the beautiful outdoor activities this vibrant area has to offer.

Hourly UV Index in La Union

The UV Index data reveals a gradual increase in sun intensity throughout the morning, starting from a safe 0 at 07:00 and 08:00. As the day progresses, the index reaches its peak of 2 during midday, specifically at 11:00, 12:00, 13:00, and 14:00—a time when sun protection is advisable. After this peak, the UV levels gently decline to 1 by 15:00 and remain steady until 17:00, before dropping back to 0 in the evening hours at 18:00 and 19:00. This data underscores the importance of being 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	0	low	45 min
08:00	0	low	45 min
09:00	1	low	45 min
10:00	1	low	45 min
11:00	2	low	45 min
12:00	2	low	45 min
13:00	2	low	45 min
14:00	2	low	45 min
15:00	1	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 La Union

Throughout the year, UV exposure reveals distinct seasonal changes, peaking during the winter and late fall months, which may come as a surprise. January and February experience extreme UV indices of 14 and 12, respectively, with a burn time as short as 10 minutes, indicating a high-risk environment for sunburn. March begins a transition to very high levels (UV index 9) with a burn time of 15 minutes, while April reaches a high level (UV 6) with increased burn time at 25 minutes. The UV index drops in June to a low of 2, suggesting a safer period for sun exposure with a burn time of 45 minutes, before gradually rising again into moderate levels from July through September. Notably, both November and December return to extreme levels with UV indices of 12 and 13, again emphasizing the need for caution. Visitors and residents should take extra precautions during these high-risk months (January, February, November, and December) by wearing sunscreen, protective clothing, and seeking shade to minimize the risk of UV-related health issues.

Monthly Maximum UV Index for La Union, Chile

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

The table above highlights how UV exposure in La Union 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.

La Union'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
La Union	14	12	9	6	4	2	3	5	7	9	12	13
Santiago UVI	14	12	11	7	5	3	4	6	8	11	12	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