UV Index in Casma, Peru

Last updated: July 2, 2025

In Casma, Peru, staying informed about the UV Index is crucial for safeguarding your skin health against harmful ultraviolet rays. Understanding UV levels not only helps prevent painful sunburns but also plays a vital role in reducing the long-term risks of skin damage and skin cancer. Casma, characterized by its arid BWh climate, experiences notably high UV exposure, peaking at an index of 10 around midday. With such intensity, being aware of the daily UV levels can empower residents and visitors alike to practice effective sun protection strategies and enjoy the beautiful, sunny days safely.

Hourly UV Index in Casma

The UV Index throughout the day paints a vivid picture of sun intensity. Early risers will feel minimal exposure, with a low of 1 at 07:00, gently climbing to 2 by 08:00. As the sun reaches its peak, the index skyrockets to a staggering 10 during the lunch hours at 12:00 and 13:00, indicating very high UV levels that demand protection. Following this zenith, the numbers begin to dwindle, descending to 8 at 14:00 and tapering off to 5 by 15:00. As evening settles in, the UV Index gracefully declines to 1 by 17:00 and finally drops to 0 at 19:00, marking the end of a sunlit day. Stay safe and enjoy the sunshine, but don’t forget those essential sun care practices during 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	6	high	25 min
11:00	9	very high	15 min
12:00	10	very high	15 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	5	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Casma

Throughout the year, UV Index levels fluctuate significantly, with January through April showcasing extreme conditions, peaking at 15 in March. The highest risk months are identified from January to April and October to November, all maintaining an extreme exposure category with a burn time as short as 10 minutes. The UV Index slightly decreases in June and July to a very high level of 10, allowing for a longer burn time of 15 minutes. Visitors and residents should consider these fluctuations when planning outdoor activities, ensuring they use adequate sunscreen, wear protective clothing, and seek shade during peak hours, especially in the high-risk months. Remaining vigilant about sun safety is crucial year-round to mitigate the risks of UV exposure.

Monthly Maximum UV Index for Casma, Peru

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

The table above highlights how UV exposure in Casma 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.

Casma'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
Casma	14	14	15	13	12	10	10	11	13	14	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