UV Index in La Union, Peru

Last updated: July 2, 2025

Understanding the UV Index in La Union, Peru, is essential for safeguarding your skin and overall health. With UV levels reaching a peak of 14 during midday hours, awareness of these numbers is crucial to prevent sunburn and long-term skin damage. The Cfb climate of La Union presents unique challenges, where even moderate exposure can lead to significant UV exposure risks. By staying informed about daily UV Index readings, you can take proactive steps to protect yourself and enjoy the beautiful, sun-drenched days in this vibrant coastal region.

Hourly UV Index in La Union

As the sun rises, the UV Index steadily climbs, starting at a moderate 1 at 07:00 and reaching a significant 14 by 12:00, marking the peak of the day. Between 10:00 and 13:00, UV levels soar, peaking at 13 for a few hours, a reminder to stay protected under the midday sun. However, as the afternoon wanes, the index drops sharply, down to 6 by 15:00, before continuing to decline to 3 at 16:00 and ultimately returning to a safe 0 by 18:00. This data underscores the importance of being sun-smart during peak hours when the risk of UV exposure is at its highest.

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	2	low	45 min
09:00	5	moderate	30 min
10:00	9	very high	15 min
11:00	13	extreme	10 min
12:00	14	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 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

During the year, UV Index levels remain consistently high, with an extreme exposure category from January through April, where the index reaches a peak of 19. The risk continues to be significant from May to October, with the index fluctuating between 13 and 17, before slightly decreasing in November and December at 18 and 17, respectively. The high-risk months are primarily from January to April and again in September to November, where the burn time is a mere 10 minutes. It is crucial for both visitors and residents to take necessary precautions during these months, such as wearing protective clothing, applying sunscreen regularly, and seeking shade when outdoors to mitigate the risks associated with prolonged sun exposure.

Monthly Maximum UV Index for La Union, Peru

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 Peru Cities

The table above highlights how UV exposure in La Union compares to other major locations across Peru. 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 Peru. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Callao UVI	14	14	14	12	10	9	10	11	12	13	14	13
Lima UVI	14	14	14	12	10	9	10	11	12	13	14	13
Trujillo UVI	15	15	15	14	12	11	11	11	13	14	14	14
Chiclayo UVI	14	15	15	14	13	11	11	12	15	14	14	13
Arequipa UVI	18	17	17	15	12	10	11	13	15	17	18	17
La Union	19	19	19	19	15	13	14	15	17	18	18	17