UV Index in Coasa, Peru

Last updated: June 2, 2025

Understanding the UV Index in Coasa, Peru is essential for safeguarding your skin and overall health under the intense rays of the sun. Awareness of UV levels helps prevent sunburn and chronic skin issues, making it vital for residents and visitors alike. Nestled in an ET climate zone, Coasa experiences significant UV exposure, particularly from 10 AM to 12 PM when the index reaches its peak of 11. Being informed about these fluctuations empowers you to take necessary precautions, ensuring you enjoy the sun while keeping your skin safe and healthy.

Hourly UV Index in Coasa

As the sun rises, the UV Index climbs steadily, starting at a gentle 1 at 7:00 AM. By 8:00 AM, it reaches 3, marking the beginning of increased sun exposure. The day continues to heat up, with the index peaking at a remarkable 11 from 11:00 AM to 12:00 PM, indicating a high risk for harm from unprotected sun exposure. As the afternoon sets in, it gradually declines, dropping to 6 by 2:00 PM and subsequently to 3 by 3:00 PM. As the sun begins to descend, the index returns to a safer 1 by 4:00 PM and tapers off to 0 after 6:00 PM. This hourly trend underscores the importance of sun protection during the midday hours 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	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	9	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 Coasa

Throughout the year, the UV Index consistently remains high, showcasing extreme levels of UV radiation from January to December. The months with the highest UV readings—January, February, March, and November—each record a UV index of 20. All months experience a burn time of just 10 minutes, signaling an urgent need for protective measures. Notably, while UV levels begin to decline slightly in June and are consistently high through the summer into October, visitors and residents are advised to exercise caution year-round. During these extreme conditions, it's crucial to wear sunscreen, protective clothing, and sunglasses to minimize the risk of skin damage. Staying in the shade during peak hours will also help safeguard against harmful UV exposure.

Monthly Maximum UV Index for Coasa, Peru

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

The table above highlights how UV exposure in Coasa 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.

Coasa'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
Coasa	20	19	20	17	13	11	12	15	18	19	20	20