UV Index in Castrovirreyna, Peru

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Castrovirreyna, Peru, where the climate is classified as ET (tundra), yet sun exposure can still pose significant risks. With UV levels peaking dramatically from 10 AM to 1 PM, this awareness is vital for sunburn prevention and overall skin health. The high UV Index—reaching peaks of 15—means that even short periods outdoors can lead to skin damage. By staying informed about daily UV levels, you can protect yourself and enjoy the beautiful, clear days that characterize Castrovirreyna while minimizing sun exposure risks.

Hourly UV Index in Castrovirreyna

The UV Index begins its day gently, peaking at 1 at 7:00 AM before climbing steadily. By 9:00 AM, it reaches 7, signaling increased caution. The sun's intensity becomes undeniable as it soars to a striking 15 by 12:00 PM, marking the day’s maximum exposure from 11:00 AM to 1:00 PM. After this zenith, the index gradually falls, dropping to 5 by 3:00 PM, and then retreats to a safe 2 by 4:00 PM. Finally, the day concludes with minimal risk as the index settles at 0 after 6:00 PM. It's a reminder to stay protected and seek shade during 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	1	low	45 min
08:00	3	moderate	30 min
09:00	7	high	25 min
10:00	11	extreme	10 min
11:00	14	extreme	10 min
12:00	15	extreme	10 min
13:00	13	extreme	10 min
14:00	9	very high	15 min
15:00	5	moderate	30 min
16:00	2	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 Castrovirreyna

Throughout the year, the UV Index remains consistently high, with extreme levels recorded from January to December. The highest UV values occur in the early months, with January and February peaking at an index of 22, indicating a critical risk of harm from unprotected sun exposure, where a burn can occur in just 10 minutes. Visitors and residents should be particularly mindful during these months, as well as in March and April, when the index remains above 18. Although the index slightly decreases during the summer months, it remains above 13, necessitating continued sun protection. As such, it is advised to use sunscreen, wear protective clothing, and seek shade during peak hours throughout the year to minimize the risk of skin damage.

Monthly Maximum UV Index for Castrovirreyna, Peru

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

The table above highlights how UV exposure in Castrovirreyna 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.

Castrovirreyna'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
Castrovirreyna	22	22	20	18	15	13	14	15	17	19	20	21