UV Index in Cosos, Peru

Last updated: June 2, 2025

In Cosos, Peru, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding daily UV levels can help you take protective measures, especially during peak hours when the sun is strongest. With a BWk climate, Cosos experiences significant UV exposure, particularly between 11:00 AM and 1:00 PM, when the index reaches a maximum of 10. Being informed about these levels empowers residents and visitors alike to enjoy the beautiful sunny days while safeguarding their skin against harmful effects.

Hourly UV Index in Cosos

The UV Index throughout the day shows a dynamic pattern of sun exposure. Starting at a low of 1 at 07:00, it gently rises to 2 by 08:00. As the morning progresses, the intensity increases more noticeably, peaking at a striking 10 at 12:00, marking the highest level of sun strength. From there, the index begins its descent, falling to 8 at 13:00 and tapering off to 6 by 14:00. The afternoon witnesses a further decline, with values dropping to 3 at 15:00 and easing to 1 by 17:00. As the sun sets, the index finally drops to 0 at 18:00 and remains insignificant through the evening hours. This data highlights the importance of protecting your skin during peak hours, especially from 10:00 to 14:00, when the 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	7	high	25 min
11:00	9	very high	15 min
12:00	10	very high	15 min
13:00	8	very high	15 min
14:00	6	high	25 min
15:00	3	moderate	30 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 Cosos

Throughout the year, UV Index values remain notably high, with the most extreme levels occurring from January to April and again in July and August. The highest risk months for sun exposure are January, February, March, and October, where the UV Index reaches 18, suggesting an exposure category of extreme and a dangerous burn time of just 10 minutes. During these months, it is crucial for visitors and residents to take precautions by seeking shade, wearing protective clothing, and using sunscreen with a high SPF. Even in the summer months, while the UV Index decreases slightly, vigilance is still necessary as the index remains high to very high. Long-term exposure can lead to skin damage, so staying informed about daily UV forecasts is essential for safety.

Monthly Maximum UV Index for Cosos, Peru

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

The table above highlights how UV exposure in Cosos 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.

Cosos'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
Cosos	18	17	17	14	12	10	11	13	15	17	17	17
Arequipa UVI	18	17	17	15	12	10	11	13	15	17	18	17