UV Index in Lima, Peru

Last updated: June 2, 2025

In Lima, Peru, understanding the UV Index is crucial for protecting your skin and overall health. With a climate characterized by its dry conditions and significant sunlight exposure, the UV levels can soar, particularly during mid-day hours. Being aware of these levels helps in preventing sunburn and long-term skin damage. For instance, on a typical sunny day, the UV Index peaks at a striking 9 around noon, signaling a high risk of harm to unprotected skin. Keeping an eye on the UV Index not only empowers residents and visitors to enjoy sunny Lima safely but also promotes healthier outdoor activities year-round.

Hourly UV Index in Lima

The UV index throughout the day exhibits a dynamic rise and fall, reflecting the sun's intensity. At 07:00, the index starts low at 1, gradually climbing to 2 by 08:00. By 09:00, it reaches a moderate 4, but excitement peaks at 12:00 with a striking 9, indicating a high risk for unprotected skin. The intensity tapers down after this noon pinnacle—falling to 8 at 13:00, then 6 at 14:00. As afternoon turns to evening, the index diminishes significantly, settling at 4 by 15:00, dropping to 2 at 16:00, and finally winding down to 1 by 17:00. As the sun sets, the index recedes completely, hitting 0 by 18:00, leaving a tranquil end to the day. Remember, during peak times, sun protection is crucial!

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	8	very high	15 min
12:00	9	very high	15 min
13:00	8	very high	15 min
14:00	6	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 Lima

Throughout the year, UV Index levels exhibit significant seasonal variations, presenting high-risk months primarily between January and March, as well as August through November, where the index remains in the extreme category (14-12) with a burn time as brief as 10 minutes. Notably, April to July sees a slight decrease, transitioning to a very high level (10-9), allowing for slightly longer exposure times of 15 minutes. With such high UV readings during peak seasons, it is essential for visitors and residents alike to take precautionary measures: apply broad-spectrum sunscreen, wear protective clothing, and seek shade during peak sun hours to minimize the risk of skin damage.

Monthly Maximum UV Index for Lima, Peru

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

The table above highlights how UV exposure in Lima 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.

Lima'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
Lima	14	14	14	12	10	9	10	11	12	13	14	13
Callao 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