Lago San Martin Weather in September

Lago San Martin in September averages 5°C (41°F) during the day and -2°C (28°F) at night. This is the driest month of the year.

Rainfall in Lago San Martin in September

Conditions tend to be dry and settled, making it a good month for outdoor plans, even if you'll want to dress for the cooler temperatures. Typically around 5 days of snow/rainfall are expected, averaging 86 mm (3.4 in) for the month. When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.

Temperature in Lago San Martin in September

Temperatures in Lago San Martin in September top out at 5°C (41°F) and drop to -2°C (28°F) overnight. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. Nights drop below freezing to -2°C (28°F). An extra blanket is worth packing if you're unsure about the heating where you're staying.

Sunshine in Lago San Martin in September

The area enjoys a balanced 170 hours of sunlight, ensuring it's neither too overcast nor too sunny.

September in Lago San Martin can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

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• January
• February
• March
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• May
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• October
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For a detailed overview over the year and the best time to visit Argentina, check out our Lago San Martin's climate page.

Lago San Martin Temperature in September

Min Temperature -2°C (28°F)  

Max Temperature 5°C (41°F)  

Chance of Rain 17%  

Precipitation 86 mm (3.4 in)  

Rainy days 5 days  

Sunshine 170 hours *  

Percentage Sunshine *  

* Data from: El Chaltén, Argentina (36 KM, 22 Miles).

What to Wear in Lago San Martin in September

Dress warmly and in layers for your trip to Lago San Martin in September. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Lago San Martin in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

3/10

Walking

3/10

Camping

1/10

Outdoor sports

3/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

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

More climate data for Lago San Martin

Temperature Rainfall Sunshine

See the full Lago San Martin climate overview or explore weather in Argentina.