UV Index in San Pedro de Atacama, Chile

Last updated: July 2, 2025

In San Pedro de Atacama, Chile, understanding the UV Index is crucial for maintaining your skin health and preventing sunburn during outdoor activities. With an average UV exposure peaking at 9 around midday, the BWk climate—characterized by its high altitude and arid conditions—significantly amplifies the sun's intensity. Being informed about daily UV levels helps you safeguard your skin while enjoying the stunning landscapes and vibrant culture of this remarkable region. Remember, a little awareness goes a long way in protecting yourself from harmful UV rays!

Hourly UV Index in San Pedro de Atacama

As the day unfolds, the UV Index paints a dynamic picture of sun exposure. Morning starts off cool, with UV levels at 0 at 07:00 and gradually rising to 1 by 08:00. By 09:00, it ramps up to 2, but the real peak arrives around midday, where UV levels soar to a striking 9 by 12:00 and remain high at 9 until 13:00. The intensity begins to soften in the afternoon, dropping to 8 by 14:00, and further diminishing to 5 at 15:00. As the sun begins to set, the UV Index retreats, landing back at 3 by 16:00 and descending to 1 by 17:00 and 18:00, before finally resting at 0 by 19:00. Be sure to take precautions during peak hours and enjoy the safe glow of the evening!

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.
TimeUVICategoryTime to Burn
07:000low45 min
08:001low45 min
09:002low45 min
10:005moderate30 min
11:007high25 min
12:009very high15 min
13:009very high15 min
14:008very high15 min
15:005moderate30 min
16:003moderate30 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in San Pedro de Atacama

The UV Index shows considerable variability throughout the year, with the highest values occurring from January to April, where it consistently reaches extreme levels above 16, resulting in a burn time of just 10 minutes. December and November also show extreme values, indicating that this period represents the highest risk for UV exposure. In May through July, the UV Index remains very high, ranging from 8 to 10, allowing for slightly longer burn times of 15 minutes. As we move into August and September, the UV Index peaks back to extreme levels, emphasizing the need for careful sun protection measures. Residents and visitors are advised to take precautions during these high-risk months by applying sunscreen regularly, wearing protective clothing, and seeking shade when possible, especially from October to April, where extreme UV exposure is prevalent.

Monthly Maximum UV Index for San Pedro de Atacama, Chile

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in San Pedro de Atacama. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec1817161310891114171818
Data source: Statistical UV Index data for San Pedro de Atacama, 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 Pedro de Atacama UV Index with Other Chile Cities

The table above highlights how UV exposure in San Pedro de Atacama compares to other major locations across Chile. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
San Pedro de Atacama's solar exposure compared to other cities in Chile. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Santiago UVI141211753468111214
Valparaiso UVI141211854468111214
Vina del Mar UVI141211854468111214
Puente Alto UVI1514128646811121415
Antofagasta UVI15151310867911141515
San Pedro de Atacama1817161310891114171818