Temperature in Patagonia in September

Daytime highs, nighttime lows and the warmest cities in Patagonia, Argentina this September.

Patagonia, Argentina, a region in Argentina, experiences maximum daytime temperatures in September ranging from 3°C (37°F) in El Chaltén to 20°C (68°F) in Santa Rosa. Nighttime temperatures generally drop to 7°C (45°F) in Santa Rosa and -4°C (25°F) in El Chaltén.

What is the temperature of the different cities in Patagonia, Argentina in September?

Find the average daytime temperatures in September for the most popular destinations in Patagonia on the map below. Click on a destination dot for more detailed information.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit Patagonia, check out our Patagonia's climate page.

See also: Patagonia weather by month.

Best Places to Visit in Patagonia in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Patagonia.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

See all September weather averages, cities and regions in Patagonia

Patagonia temperatures in September: frequently asked questions

How hot does it get in Patagonia, Argentina in September?

Daytime temperatures in Puerto Madryn typically peak at 18°C (64°F) in September, putting it in the pleasant range.

How cold does it get at night in Patagonia, Argentina in September?

Average overnight lows in Patagonia, Argentina during September sit near 6°C (43°F) in Puerto Madryn.

What is the warmest city in September in Patagonia, Argentina?

Santa Rosa tops the warmest city list in our database with average maximum daytime temperatures around 20°C (68°F) and a minimum nighttime temperature of around 7°C (45°F).

What is the coldest city in September in Patagonia, Argentina?

According to our data, El Chaltén holds the title for the coldest city in Patagonia, Argentina in September. It experiences maximum temperatures of approximately 3°C (37°F) and drops to lows of about -4°C (25°F) during the night.

How much sun does Patagonia, Argentina get in September?

Across Patagonia, Argentina, sunshine in September ranges from moderately sunny in El Chaltén (170 hours) to sunny in Puerto Madryn (197 hours).

What is the water temperature in September?

The water temperature averages approximately 8°C (46°F) in Trelew this month, generally too cold for comfortable swimming.

Interested in more climate information?

We have much more information about the climate in Patagonia.

Weather and climate has detailed information for every country in the world. Are you going to Argentina? Get detailed historical weather averages for many cities in Argentina.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

The 10 most alternative cities in South America

Discover South America's top 10 alternative cities! From Valparaíso's vibrant streets to La Paz's high-altitude charm and Medellín's innovative spirit.
Be amazed by Buenos Aires

The city of beautiful museums, cute streets, green parks, lots of good food, interesting local neighborhoods and impressive historical buildings.
Explore Patagonia

A tour through Patagonia brings you to the end of the world. That’s why Patagonia is a bucket list destination for many. We recommend to visit Patagonia from November to early March.
Glacier walk on The Perito Moreno glacier

The Perito Moreno glacier and the rupture of this glacier is considered one of the most impressive natural spectacles in the world. You can wait here until a large piece of ice crumbles and plunges into the water with a lot of noise.

Must visit in Argentina →