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Bella Vista Weather in September
September in Bella Vista brings moderate temperatures, with daytime highs of 18°C (64°F) and nights around 10°C (50°F). Quite a bit of rainfall is expected, around 96 mm (3.8 in), so pack an umbrella.
Rainfall in Bella Vista in September
Historically, the month has about 10 days of rain, averaging 96 mm (3.8 in) in total. 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 Bella Vista in September
September in Bella Vista brings moderate temperatures, with highs of 18°C (64°F) and nights around 10°C (50°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to 10°C (50°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Bella Vista in September
The area experiences a moderate amount of sunshine, with approximately 171 hours of sunlight expected. This means a decent mix of sun and overcast.If you prefer enjoying temperate temperatures and rain-free days, January, March, 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.
Bella Vista Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
18°C (64°F)
Chance of Rain
32%
Precipitation
96 mm (3.8 in)
Rainy days
10 days
Sunshine
171 hours *
Percentage Sunshine
*
* Data from: Punta del Este, Uruguay (41 KM, 25 Miles).
Bella Vista Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bella Vista - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Bella Vista typically stay consistent throughout September, with daily highs averaging around 18°C (64°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 records for Bella Vista in September
Browse day-by-day weather records for Bella Vista spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Bella Vista historical weather extremes in September
Based on weather observations in Bella Vista between 1976 and 2025, these are the recorded extremes during September.
- The hottest September day on record in Bella Vista reached 32°C (90°F) (September 30, 2024).
- On September 5, 2008, Bella Vista saw its coldest September day with temperatures maxing out at 8°C (46°F).
- The coldest night in September in Bella Vista was on September 2, 1990, with a minimum of -2°C (28°F).
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Bella Vista in September
For Bella Vista in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Bella Vista in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling6/10 -
Walking6/10 -
Barbeque6/10 -
Camping4/10 -
Outdoor sports9/10
Bella Vista 3-Day Forecast
More climate data for Bella Vista
See the full Bella Vista climate overview or explore weather in Uruguay.
Popular in September
Where to go in September - average daytime high across popular destinations.
Colonia del Sacramento
18°C (64°F) Montevideo18°C (64°F) La Pedrera17°C (63°F) José Ignacio
17°C (63°F) Piriápolis17°C (63°F) La Paloma16°C (61°F) Punta Del Diablo17°C (63°F) Punta del Este16°C (61°F) Bucket list
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