Sierra de la Ventana Weather in September
In Sierra de la Ventana, September brings moderate daytime temperatures around 17°C (63°F), with nights cooling to 5°C (41°F). Some rainfall is to be expected.
Rainfall in Sierra de la Ventana in September
Historically, the month has about 6 days of rain, averaging 57 mm (2.2 in) in total. 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 Sierra de la Ventana in September
September in Sierra de la Ventana brings typical temperatures with highs around 17°C (63°F) and lows of 5°C (41°F). Conditions are often most pleasant around the middle of the day. With overnight lows of 5°C (41°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Sierra de la Ventana in September
With about 159 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.If you prefer enjoying temperate temperatures and rain-free days, January, February, March, April, October, November and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Sierra de la Ventana's climate page.
Sierra de la Ventana Temperature in September
Min Temperature
5°C (41°F)
Max Temperature
17°C (63°F)
Chance of Rain
20%
Precipitation
57 mm (2.2 in)
Rainy days
6 days
Humidity
64% *
Sunshine
159 hours *
Percentage Sunshine
44% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sierra de la Ventana typically stay consistent throughout September, with daily highs averaging around 17°C (63°F). Nights are cold, with lows typically ranging from 3°C (37°F) to 8°C (46°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Sierra de la Ventana in September
Browse day-by-day weather records for Sierra de la Ventana spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sierra de la Ventana historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Sierra de la Ventana.
- The hottest September day on record in Sierra de la Ventana reached 32°C (90°F) (September 25, 1977).
- On September 16, 1982, Sierra de la Ventana saw its coldest September day with temperatures maxing out at 6°C (43°F).
- Sierra de la Ventana registered its coldest September night on September 14, 1981, with temperatures dropping to -6°C (21°F).
Best Places in Argentina in September
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Sierra de la Ventana in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Sierra de la Ventana in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Sierra de la Ventana's climate page.
Temperature Rainfall Sunshine Humidity
See the full Sierra de la Ventana climate overview or explore weather in Argentina.
