UV Index in Rioja, Peru

Last updated: July 2, 2025

Understanding the UV Index in Rioja, Peru is crucial for protecting your skin and maintaining overall health in this sun-drenched region. With peak UV levels reaching a staggering 12 during midday, awareness of these measurements can help prevent sunburn and long-term skin damage. The climate here, classified as Am, brings warm temperatures and clear skies, posing significant exposure risks especially from late morning to early afternoon. Stay informed and take proactive measures to enjoy the beautiful Peruvian sunshine safely!

Hourly UV Index in Rioja

During the day, the UV Index experiences a significant surge, peaking at 12 between noon and 1 PM, indicating a high risk of harm from unprotected sun exposure. The morning starts off relatively mild, with values of 1 at 7 AM, increasing steadily to 5 by 9 AM. As the clock approaches 10 AM, the index climbs to 8, and by 11 AM, it reaches an intensity of 11. The sun’s power begins to wane after 1 PM, dropping to 9 at 2 PM and then declining further to 6 by 3 PM. The afternoon shadows bring relief as the UV Index dwindles to 3 at 4 PM and falls to 1 by 5 PM before finally settling at 0 post 6 PM. It’s crucial to stay protected during those peak hours, especially between 11 AM and 1 PM!

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	5	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	9	very high	15 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 Rioja

Throughout the year, the UV Index remains consistently extreme, with the highest values recorded from March to April (UV Index 18) and February (UV Index 17). These high-risk months are critical for visitors and residents alike, as the burn time across all months is just 10 minutes under these conditions. Therefore, it is imperative to take protective measures year-round, such as wearing sunscreen, protective clothing, and sunglasses, as well as seeking shade whenever possible. Awareness and caution are essential to safeguard against the harmful effects of UV radiation, particularly in the spring months when the intensity peaks.

Monthly Maximum UV Index for Rioja, Peru

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

The table above highlights how UV exposure in Rioja 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.

Rioja'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
Rioja	16	17	18	17	14	12	12	13	15	16	15	15