UV Index in Tomas, Peru

Last updated: August 1, 2025

Understanding the UV Index in Tomas, Peru is essential for protecting your skin and overall health. With peak UV levels reaching a staggering 14 during midday hours, awareness of UV exposure is crucial for preventing sunburn and long-term skin damage. Tomas, situated in an ET climate zone, experiences intense sunlight throughout the year, raising the risk of harmful UV exposure. By monitoring the UV Index, residents and visitors can take proactive measures to safeguard their skin, ensuring a healthier, more enjoyable experience under the Peruvian sun.

Hourly UV Index in Tomas

As the sun rises, the UV Index gradually increases, starting at a mild 1 at 7:00 AM. By 8:00 AM, it climbs to 2, but the real intensity kicks in around 9:00 AM, hitting 6. The peak occurs just before noon, with a staggering 14 at 12:00 PM, signaling a day of high UV exposure. The intensity begins to wane in the afternoon, dipping to 10 at 2:00 PM, and then steadily decreasing to 6 by 3:00 PM. As evening approaches, the index gracefully descends to 1 by 5:00 PM and finally settles at 0 after 6:00 PM, relieving outdoor enthusiasts from worry as they wrap up their day. Remember to prioritize sun protection during those peak hours for a safe and enjoyable experience outdoors!

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	7	high	25 min
10:00	11	extreme	10 min
11:00	14	extreme	10 min
12:00	15	extreme	10 min
13:00	14	extreme	10 min
14:00	11	extreme	10 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Tomas

The UV Index remains consistently extreme throughout the year, with values ranging from 13 to 23. Notably, the highest levels occur in January (23), February (21), and December (21), making these high-risk months for UV exposure, where skin burn time is as little as 10 minutes. Visitors and residents should take precautionary measures during these months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, especially during midday hours when UV radiation peaks. While UV levels slightly decrease in the summer months, they remain significant, so vigilance is essential year-round.

Monthly Maximum UV Index for Tomas, Peru

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

The table above highlights how UV exposure in Tomas 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.

Tomas'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
Tomas	23	21	21	18	15	13	14	15	17	20	20	21