La Plata Weather in September
La Plata in September sees pleasant temperatures, with highs around 18°C (64°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 80 mm (3.1 in) on average, so pack waterproofs just in case.
Rainfall in La Plata in September
Looking at the last 30 years, the data shows about 7 days with rain, averaging 80 mm (3.1 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in La Plata in September
In September, La Plata gets pleasant temperatures, with highs of 18°C (64°F). Nights cool to around 10°C (50°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights cool down to 10°C (50°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in La Plata in September
The month experiences a moderate amount of sunlight, with 186 hours of sunshine. This provides a nice balance between sunshine and clouds.If you prefer dry days with pleasant temperatures, January, March, April, 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 La Plata's climate page.
La Plata Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
18°C (64°F)
Chance of Rain
24%
Precipitation
80 mm (3.1 in)
Rainy days
7 days
Humidity
70% *
Sunshine
186 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in La Plata typically stay consistent throughout September, with daily highs averaging around 18°C (64°F). Nights are cool, with lows typically ranging from 7°C (45°F) to 11°C (52°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 La Plata in September
Browse day-by-day weather records for La Plata spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
La Plata historical weather extremes in September
Our historical data for La Plata spans 1976 to 2025, revealing these weather extremes.
- La Plata recorded its highest September temperature of 31°C (88°F) on September 10, 2013.
- The lowest daytime temperature in September was 7°C (45°F), recorded on September 14, 1981.
- La Plata registered its coldest September night on September 1, 1990, with temperatures dropping to -2°C (28°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
pleasant
tolerable
unpleasant
poor
What to Wear in La Plata 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in La Plata 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 La Plata's climate page.
Temperature Rainfall Sunshine Humidity
See the full La Plata climate overview or explore weather in Argentina.
