Monday, October 19, 2026 · Chile
Skin weather in San Pedro de Atacama UV index & humidity today
What today’s weather in San Pedro de Atacama does to your skin – based on current forecast data for UV, humidity and air quality.
Updated Oct 19, 2026, 5:10 AM local time
Today · Temperature9 to 24 °C
Low and high-
UV index
8
very high
Peak UV index today: 8 – very high.
Very high UV: the WHO advises avoiding the midday sun and reapplying sun protection regularly.
-
Humidity
23%outdoors
very dry
Average humidity today: 23%.
Dry air draws moisture from your skin – a richer moisturiser makes sense today.
-
Pollen
–
No pollen forecast is available for this region.
-
Air quality
40EAQI
fair
European Air Quality Index up to 40 – fair. Fine dust (PM2.5) averages 7.8 µg/m³.
Clean air – no extra cleansing needed.
Tomorrow
- 7 to 25 °C
- UV 10 · very high
- 16% · very dry
- Air quality: moderate
Skin climate in San Pedro de Atacama through the year
When the air in San Pedro de Atacama is driest and when the sun is strongest – based on climate data from recent years.
- Indoor air in San Pedro de Atacama is driest in July: heated to 21 °C, humidity indoors drops to around 5%.
- From May to August, the average daily temperature stays below 15 °C – the time when heating is usually on.
- From July to May, the midday sun climbs higher than 45° – your shadow is then shorter than you are. According to the WHO shadow rule, UV is then usually high.
- December brings the most sunshine, with around 383 hours.
| Month | Sunshine | Midday sun | Humidity outdoors | Indoors when heated | Avg. high |
|---|---|---|---|---|---|
| Jan | 381 h | 88° | 29% | – | 27.6 °C |
| Feb | 329 h | 80° | 34% | – | 27.2 °C |
| Mar | 352 h | 70° | 32% | – | 26.5 °C |
| Apr | 322 h | 58° | 18% | – | 24.5 °C |
| May | 313 h | 48° | 14% | 8% | 21.9 °C |
| Jun | 295 h | 44° | 16% | 7% | 19.9 °C |
| Jul | 311 h | 46° | 10% | 5% | 21.2 °C |
| Aug | 327 h | 53° | 11% | 6% | 21.3 °C |
| Sep | 333 h | 65° | 9% | – | 23.9 °C |
| Oct | 367 h | 77° | 11% | – | 25.5 °C |
| Nov | 372 h | 86° | 14% | – | 26.9 °C |
| Dec | 383 h | 90° | 20% | – | 27.5 °C |
Indoors when heated = humidity when outdoor air is warmed to 21 °C (only months with a daily average below 15 °C). Midday sun = sun angle in mid-month.
Frequently asked questions
What is the UV index in San Pedro de Atacama today?
Today (October 19) the UV index in San Pedro de Atacama reaches up to 8 – very high. Very high UV: the WHO advises avoiding the midday sun and reapplying sun protection regularly.
How dry is the air in San Pedro de Atacama today?
Average humidity today: 23%. Dry air draws moisture from your skin – a richer moisturiser makes sense today.
When is the air driest in San Pedro de Atacama?
Indoor air in San Pedro de Atacama is driest in July: heated to 21 °C, humidity indoors drops to around 5%. From May to August, the average daily temperature stays below 15 °C – the time when heating is usually on.
When is UV strongest in San Pedro de Atacama?
From July to May, the midday sun climbs higher than 45° – your shadow is then shorter than you are. According to the WHO shadow rule, UV is then usually high. December brings the most sunshine, with around 383 hours.
Your skin weather, every morning.
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Skin weather nearby
All cities →Data: WDTEC GmbH’s own weather servers – temperature, UV index and humidity from weather models, air quality and pollen from the Copernicus Atmosphere Monitoring Service (CAMS). Ratings: UV per WHO, air quality per European Air Quality Index, pollen per NAB. Skincare tips are general recommendations and do not replace medical advice.