San Pedro de Atacama in September
In September, San Pedro de Atacama averages 22°C (72°F) during the day and 1°C (34°F) at night, with only about 0 rainy days.
High seasonConditions are comfortable for sightseeing without being sweltering. Skies are generally dry and clear.
September is a great month to visit San Pedro de Atacama: pleasant temperatures and relatively few wet days.
How September compares to the rest of the year in San Pedro de Atacama
September is in the middle of the year for warmth in San Pedro de Atacama (9th of 12) and one of the driest months (12th of 12). Daytime temperature matches the city's annual average. September runs 1°C warmer than August (21°C) and warms a further 1°C into October (23°C).
September sunrise & sunset in San Pedro de Atacama
Times shown for San Pedro de Atacama local time (America/Santiago), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in San Pedro de Atacama — September
Golden-hour and blue-hour windows for the 15th of September, in San Pedro de Atacama's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — San Pedro de Atacama in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (High season) and San Pedro de Atacama's popularity.
Crowds & pricing — September in San Pedro de Atacama
This is a busy month in San Pedro de Atacama — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: excellent tourism weather
Sun & mosquito risk — September in San Pedro de Atacama
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
San Pedro de Atacama in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 23°C / 73°F | 8°C / 46°F | 15 mm | 3 | 0 |
| February | 23°C / 73°F | 8°C / 46°F | 15 mm | 3 | 0 |
| March | 22°C / 72°F | 7°C / 45°F | 5 mm | 1 | 0 |
| April | 22°C / 72°F | 3°C / 37°F | 1 mm | 0 | 0 |
| May | 22°C / 72°F | 0°C / 32°F | 0 mm | 0 | 0 |
| June | 21°C / 70°F | -2°C / 28°F | 0 mm | 0 | 0 |
| July | 20°C / 68°F | -3°C / 27°F | 0 mm | 0 | 0 |
| August | 21°C / 70°F | -2°C / 28°F | 1 mm | 0 | 0 |
| September | 22°C / 72°F | 1°C / 34°F | 1 mm | 0 | 0 |
| October | 23°C / 73°F | 4°C / 39°F | 5 mm | 1 | 0 |
| November | 24°C / 75°F | 6°C / 43°F | 5 mm | 1 | 0 |
| December | 24°C / 75°F | 7°C / 45°F | 15 mm | 3 | 0 |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for San Pedro de Atacama in September →
Frequently asked questions
How hot is San Pedro de Atacama in September?
In September, San Pedro de Atacama averages a high of 22°C (72°F) and a low of 1°C (34°F) — generally mild and pleasant.
Does it rain a lot in San Pedro de Atacama in September?
September is generally dry in San Pedro de Atacama, with about 0 rainy days on average.
Is September a good time to visit San Pedro de Atacama?
September is mild and pleasant and mostly dry. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for San Pedro de Atacama in September?
Pack light layers for warm days and cooler evenings. See the full September packing list for San Pedro de Atacama for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.