UV Index in Caldera, Peru

Last updated: June 2, 2025

In Caldera, Peru, awareness of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels can significantly aid in preventing sunburn and reducing the long-term risks of skin damage. With Caldera's warm BSh climate, residents and visitors are often exposed to high UV rays, peaking between 10 AM and 1 PM, where values soar to 10. Being informed about these daily fluctuations allows you to take necessary precautions, ensuring your time under the sun is enjoyable and safe.

Hourly UV Index in Caldera

The UV Index throughout the day presents a compelling narrative of sun exposure, peaking at a staggering 10 at 12:00 PM, indicating a need for caution. As the sun rises, the UV Index gradually climbs from 1 at 7:00 AM to a notable 4 by 9:00 AM. The ascent continues, reaching 9 by 11:00 AM, before hitting its maximum at noon. However, as the afternoon progresses, the intensity wanes, with readings dropping to 7 by 2:00 PM and eventually falling to 1 by 5:00 PM. As twilight approaches, the Index dips to 0 after 6:00 PM, promising safe evening conditions. Engaging with the sun requires awareness; ensure you're 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	2	low	45 min
09:00	4	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	9	very high	15 min
14:00	7	high	25 min
15:00	4	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 Caldera

The UV Index demonstrates significant seasonal variation, remaining exceedingly high throughout the year, with an extreme exposure category consistently marked. The months from January to April show a peak UV Index of 15-16, indicating the most critical risk periods for skin damage due to sun exposure, with a burn time as brief as 10 minutes. As we transition into summer, the UV Index begins to stabilize, dropping slightly to a maximum of 12 in June and August, yet still necessitating caution. Notably, July has an 11 UV Index while September sees a rise back to 13. The risk remains elevated through October to December, with indices returning to 14. Residents and visitors should adhere to sun safety measures—such as wearing protective clothing, applying sunscreen regularly, and seeking shade during peak hours—to protect against harmful UV exposure, especially during these high-risk months when burn times are critically short.

Monthly Maximum UV Index for Caldera, Peru

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

The table above highlights how UV exposure in Caldera 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.

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