UV Index in San Gregorio, Peru

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors of San Gregorio, Peru, where the sun shines brightly in a BWh climate. With UV levels peaking at 12 during midday hours, awareness of the UV Index is essential for preventing sunburn and maintaining long-term skin health. As the intensity of UV radiation can pose significant risks, staying informed about UV levels helps you protect yourself while enjoying the beautiful outdoor lifestyle that San Gregorio offers. Whether you’re lounging on the beach or engaging in local activities, knowing the UV Index empowers you to take proactive steps against harmful sun exposure.

Hourly UV Index in San Gregorio

As the day unfolds, the UV Index experiences a dramatic rise, peaking at 12 around noon, signifying an intense level of UV radiation. Early morning begins with a gentle 1 at 07:00, slowly escalating to a moderate 4 by 09:00. By 10:00, it shoots up to 8, and shortly after, it reaches its maximum intensity of 10 at 11:00. The midday sun casts its strongest rays at 12, before the index begins to taper off, dropping to 9 at 14:00. The late afternoon sees a decline, with values falling to 3 by 16:00 and ultimately retreating back to a safe 1 by 17:00. As twilight approaches, the UV exposure drops to 0 by 19:00, reminding us of the sun's fleeting strength throughout the day. Remember to protect your skin 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	8	very high	15 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	9	very high	15 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in San Gregorio

The UV Index in our region remains consistently high throughout the year, with extreme exposure levels recorded from January through November. Notably, the months of March and September peak with an index of 17 and 16, respectively, indicating significant risk for sunburn. Visitors and residents should be particularly cautious during these high-risk months, as the burn time remains as low as 10 minutes across all months. It is crucial to take protective measures such as wearing sunscreen, protective clothing, and seeking shade to mitigate the dangers associated with UV exposure during this prolonged high-risk period.

Monthly Maximum UV Index for San Gregorio, Peru

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

The table above highlights how UV exposure in San Gregorio 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.

San Gregorio'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
San Gregorio	16	16	17	16	14	12	12	13	16	16	15	15
Arequipa UVI	18	17	17	15	12	10	11	13	15	17	18	17