September · Chile
Best time to visit San Pedro de Atacama in September Weather, crowds & prices
Weather in San Pedro de Atacama in September
Average temperature 13°C, 0 mm of rain, about 30 days with 6+ hours of sunshine and 11% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
8.8/10
Ranked #9 of 12 months
- Avg temp
- 13°C
- Rainfall
- 0 mm
- Humidity
- 11%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in San Pedro de Atacama scores 8.8/10 for nature and wildlife travel - ranked #9 of 12. Expect around 13°C, 0 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
San Pedro de Atacama is the base for the Atacama's geysers, salt flats and stargazing skies.
September ranks 9th of 12 for San Pedro de Atacama — one of the best windows
September averages 13°C (55°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rain is a non-issue at 0 mm for the month, with about 30 days with 6+ hours of sunshine and 11.9 hours of daylight to work with.
A 8.8/10 puts this among the year's best months in San Pedro de Atacama (9th of 12); only February scores higher, at 9.7/10.
Pack layers you can shed by midday plus one warm layer for the evening, footwear you can get muddy.
Plan for mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in San Pedro de Atacama in September?
- In September, San Pedro de Atacama averages 13°C, 0 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 8.8/10.
- Is September a good time to visit San Pedro de Atacama?
- September earns a 8.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in San Pedro de Atacama in September?
- Expect about 0 mm of rain in September. Average humidity is 11% and there are about 30 days with 6+ hours of sunshine.
Curated in San Pedro de Atacama
Tickets & experiences
Things to do in San Pedro de Atacama
San Pedro de Atacama, Chile. Live activities and tours from GetYourGuide, matched to this destination.