Piriápolis Weather in September
In Piriápolis, September brings moderate daytime temperatures around 17°C (63°F), with nights cooling to 10°C (50°F). Expect quite a bit of rainfall this month.
Rainfall in Piriápolis in September
This month experiences about 10 days of rain according to historical data, averaging 97 mm (3.8 in). 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 Piriápolis in September
In September, Piriápolis sees moderate temperatures, with highs of 17°C (63°F). Nights drop to around 10°C (50°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to around 10°C (50°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Piriápolis in September
The month experiences a moderate amount of sunlight, with 171 hours of sunshine. This provides a nice balance between sunshine and clouds.Should you favor a climate that's both dry and comfortably warm, January, March, November and December typically offer the most agreeable 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 Uruguay, check out our Piriápolis's climate page.
Piriápolis Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
17°C (63°F)
Chance of Rain
33%
Precipitation
97 mm (3.8 in)
Rainy days
10 days
Sunshine
171 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Piriápolis typically stay consistent throughout September, with daily highs averaging around 17°C (63°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 10°C (50°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 Piriápolis in September
Browse day-by-day weather records for Piriápolis spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Piriápolis historical weather extremes in September
Our historical data for Piriápolis spans 1976 to 2025, revealing these weather extremes.
- The hottest September day on record in Piriápolis reached 32°C (90°F) (September 30, 2024).
- Piriápolis experienced its chilliest September day on September 5, 2008, reaching only 8°C (46°F).
- The lowest overnight temperature recorded in September was -2°C (28°F) (September 2, 1990).
Best Places in Uruguay in September
Find out more about the weather in Uruguay and which places have the best travel conditions in this month. See all of Uruguay in September →
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tolerable
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What to Wear in Piriápolis 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Piriápolis 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 Uruguay, check out our Piriápolis's climate page.
See the full Piriápolis climate overview or explore weather in Uruguay.
