UV Index in Alerta, Peru

Last updated: June 2, 2025

In Alerta, Peru, understanding the UV Index is crucial for safeguarding your skin and overall health. With the region's tropical climate often subjecting residents and visitors to elevated UV levels, awareness can significantly reduce the risk of sunburn and long-term skin damage. During peak hours, particularly between 10:00 AM and 1:00 PM when the UV Index reaches a maximum of 10, it becomes vital to take protective measures. By keeping an eye on the UV levels, you can enjoy the beautiful, sun-soaked days of Alerta while ensuring your skin remains healthy and protected from the sun's harmful rays.

Hourly UV Index in Alerta

The UV Index throughout the day shows a pronounced peak around midday. Starting at a mild 1 at 7:00 AM, it gradually climbs to 3 by 8:00 AM. As the sun rises higher, the index reaches a notable 10 from 11:00 AM to 12:00 PM, indicating a high risk for harm from unprotected sun exposure. Following this zenith, the intensity tapers off, dropping to 8 at 1:00 PM and gently descending to 5 by 2:00 PM. Afterward, the UV Index continues to decline, sinking to 3 at 3:00 PM, before finally resting at 1 by 4:00 PM and diminishing to 0 by 6:00 PM, signaling a safe end to sun exposure for the day. It's a classic reminder of the sun's potent power—stay protected during those 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	5	moderate	30 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	10	very high	15 min
13:00	8	very high	15 min
14:00	5	moderate	30 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 Alerta

The UV Index in this region exhibits significant fluctuations throughout the year, with extreme levels persisting from January to April and then again in August and November. May marks a slight decrease, transitioning to a very high UV Index in June and July, where the burn time extends to 15 minutes. Visitors and residents should be particularly cautious from January through April and again in August and November, as these months pose the highest risk for UV exposure. It is advisable to apply sunscreen, wear protective clothing, and limit sun exposure during these times, especially during peak hours, to prevent skin damage.

Monthly Maximum UV Index for Alerta, Peru

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

The table above highlights how UV exposure in Alerta 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.

Alerta'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
Alerta	15	16	15	14	12	10	10	11	13	15	16	15
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