UV Index in Challas, Peru

Last updated: July 2, 2025

In Challas, Peru, being aware of the UV Index is crucial for protecting your skin and maintaining overall health. Understanding UV levels helps you plan your outdoor activities, ensuring that you avoid sunburn and long-term skin damage. With a Cfb climate that brings consistent sun exposure, Challas experiences notably high UV ratings, particularly between 11:00 AM and 1:00 PM, where the index can soar to 14. Knowing when to seek shade or apply sunscreen can be pivotal for enjoying the beautiful landscapes safely. Stay informed, stay protected!

Hourly UV Index in Challas

As the day unfolds, the UV Index makes a notable journey. Beginning at a modest 1 at 07:00, the intensity ramps up swiftly. By 09:00, it hits 5, but the real peak arrives at 12:00 with a powerful 14, signaling the need for sun protection. The sun reaches its zenith at 11:00 with a 12, and a slight decline occurs as we move into the afternoon, dropping to 10 by 14:00. Gradually, the UV levels retreat, falling to 6 at 15:00, and further down to 3 by 16:00. Finally, relief comes as the sun begins to set, with the index sinking to 1 at 17:00 and 0 by 18:00, marking the end of a day filled with vibrant solar energy.

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	12	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 Challas

Throughout the year, UV index values consistently remain in the extreme range, peaking from January to April with levels reaching 19 and a burn time of only 10 minutes. The high-risk months for UV exposure are between January and April as well as in September, where the UV Index remains at high levels (up to 18). Despite a slight decrease in June and July, the UV risk remains significant with values around 13 to 14, followed by another uptick in September to November. Visitors and residents are advised to take precautions year-round: wear protective clothing, apply broad-spectrum sunscreen, and limit sun exposure during peak hours to safeguard against harmful UV rays.

Monthly Maximum UV Index for Challas, Peru

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

The table above highlights how UV exposure in Challas 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.

Challas'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
Challas	18	19	19	18	15	13	14	14	17	18	17	17