Chile weather in September

Are you planning a trip to Chile in September and wondering what kind of weather to expect? Look no further than this page for all the information you need.

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

Find the average weather conditions in September for the most popular destinations in Chile on the map below. Click on a destination dot for more detailed information.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

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.

Santiago
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
16°C / 60°F 
3°C / 37°F 
161 hours 
90mm / 3.54" 
3 days 
18°C / 64°F 
5°C / 40°F 
186 hours 
72mm / 2.83" 
4 days 
October   >> October
>>  
21°C / 69°F 
7°C / 45°F 
205 hours 
56mm / 2.21" 
3 days 
Climate in Santiago

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.

Viña del Mar
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
15°C / 60°F 
9°C / 47°F 
119 hours 
57mm / 2.24" 
3 days 
16°C / 61°F 
10°C / 49°F 
147 hours 
29mm / 1.12" 
3 days 
October   >> October
>>  
17°C / 63°F 
11°C / 51°F 
171 hours 
15mm / 0.59" 
2 days 
Climate in Viña del Mar

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.

La Serena
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
18°C / 64°F 
9°C / 49°F 
173 hours 
16mm / 0.65" 
1 days 
19°C / 66°F 
10°C / 51°F 
173 hours 
6.2mm / 0.24" 
1 days 
October   >> October
>>  
21°C / 69°F 
11°C / 53°F 
171 hours 
5.2mm / 0.20" 
1 days 
Climate in La Serena

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.

Valparaíso
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
15°C / 59°F 
9°C / 49°F 
119 hours 
59mm / 2.30" 
3 days 
15°C / 60°F 
10°C / 51°F 
147 hours 
30mm / 1.17" 
3 days 
October   >> October
>>  
16°C / 61°F 
11°C / 52°F 
171 hours 
15mm / 0.60" 
2 days 
Climate in Valparaíso

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.

Pucón
Max temperature Max temp
Min temperature Min temp
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
10°C / 50°F 
2°C / 36°F 
378mm / 15" 
10 days 
poor 
13°C / 55°F 
3°C / 38°F 
243mm / 9.56" 
8 days 
poor 
October   >> October
>>  
15°C / 59°F 
5°C / 41°F 
214mm / 8.41" 
6 days 
poor 
Climate in Pucón

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.

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  • 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.