UV Index in San Ignacio, Peru

Last updated: August 1, 2025

Understanding the UV Index in San Ignacio, Peru is crucial for both residents and visitors alike, as it serves as a vital tool for preventing sunburn and protecting overall skin health. Given San Ignacio’s Aw climate, characterized by warm temperatures and strong sunlight, awareness of UV levels is essential to avoid the risks associated with high exposure. With peak UV Index values soaring to 13 around midday, it’s important to take precautions to shield your skin and enjoy the beautiful outdoors safely.

Hourly UV Index in San Ignacio

As the day unfolds, the UV Index begins its ascent at 07:00, peaking at a remarkable 13 during the 12:00 to 13:00 hour, indicating optimal sun exposure for avid sun-worshippers. The maximum intensity is observed at 11:00 with an impressive score of 11, urging caution as midday rays can be especially harsh. Following this peak, the index gradually declines, dropping to 10 by 14:00, and steadily tapering off, signaling a safer environment for outdoor activities in the late afternoon and evening. By 19:00, the UV Index plummets to 0, allowing evening strollers to bask in the fading sunlight without worry. Remember, when the sun is at its highest, embrace protection to enjoy the outdoors safely!

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	8	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	7	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in San Ignacio

Throughout the year, the UV Index demonstrates consistently extreme levels, peaking at 18 in March. The months of January through April see the highest UV Index readings, all remaining above 15, indicating that sun exposure is critical during this period with a burn time of just 10 minutes. While UV levels slightly decrease from May to August, they remain extreme, with values around 13. As the year progresses into September and October, the index stabilizes back at 16. It is essential for both visitors and residents to take precautions year-round; always wear sunscreen, protective clothing, and seek shade, particularly in the high-risk months of January through April, where UV exposure is at its most intense.

Monthly Maximum UV Index for San Ignacio, Peru

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

The table above highlights how UV exposure in San Ignacio 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.

San Ignacio'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
San Ignacio	16	17	18	17	15	13	13	13	16	16	15	15