Chile weather in September
What is the weather like in Chile in September?
The weather conditions in Chile in September vary from poor to perfect depending on the destination.
During September in Chile, the average maximum temperature varies from low in Valle Nevado with 4°C (40°F) to high in Pica with 26°C (79°F). Minimum nighttime temperatures generally drop to 12°C (53°F) in Pica and -6°C (21°F) in Valle Nevado.
Precipitation in September varies from almost none in Pica with an average of 0.5mm (0.02 inches) of rainfall to heavy in Chaitén with 374mm (15 inches).
It is also generally a
moderately sunny
time of year with an average of 186 hours of sunshine in Santiago during the entire month.
To learn more about the weather conditions in specific areas of Chile, check out the map below.
Where to go in Chile in September





Popular destinations in Chile
What is the weather like in September for the 5 most popular destinations in Chile?
Average weather in Santiago
In September Santiago generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 5°C (40°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.
Average weather in Viña del Mar
In September Viña del Mar generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 10°C (49°F) and low monthly rainfall. So on average the conditions are pleasant that month.
Average weather in La Serena
In September La Serena generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 10°C (51°F) and low monthly rainfall. So on average the conditions are perfect that month.
Average weather in Valparaíso
In September Valparaíso generally has moderate temperatures with maximum daytime temperatures around 15°C (60°F), minimum nighttime temperatures around 10°C (51°F) and low monthly rainfall. So on average the conditions are pleasant that month.
Average weather in Pucón
In September Pucón generally has moderate temperatures with maximum daytime temperatures around 13°C (55°F), minimum nighttime temperatures around 3°C (38°F) and heavy monthly rainfall. So on average the conditions are poor that month.
Is your destination not in the list? Have a look at other destinations in Chile.
Is September the best time to go to Chile?
In our opinion September is a good time to visit Chile with commonly pleasant weather in Santiago. However, the weather conditions may vary depending on your destination.
On average the best time to visit Chile is in January, February, March, April, October, November and December with generally perfect weather in Santiago.
The worst month is June that can have unpleasant weather conditions.
Interested in more climate information?
We have much more information about the climate in Chile.
Interested in the weather conditions in a specific month? Select the month below.
Weather and climate has detailed information for every country in the world. Are you going to Chile? Get detailed historical weather averages for many cities in Chile.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.