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Gualeguaychú Weather in October
October in Gualeguaychú averages 24°C (75°F) during the day and 13°C (55°F) at night. Quite a bit of rainfall is typical this month, with around 127 mm (5 in) on average. An umbrella is a good idea.
Rainfall in Gualeguaychú in October
You can expect rain on around 9 days based on historical patterns, with 127 mm (5 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Gualeguaychú in October
Expect highs of 24°C (75°F) in Gualeguaychú in October, with nights dropping to around 13°C (55°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 13°C (55°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 Gualeguaychú in October
The month enjoys around 235 hours of sunshine, creating mostly sunny days with good weather conditions.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, August and September typically offer the best weather for Gualeguaychú.
Gualeguaychú Temperature in October
Min Temperature
13°C (55°F)
Max Temperature
24°C (75°F)
Chance of Rain
30%
Precipitation
127 mm (5 in)
Rainy days
9 days
Humidity
72% *
Sunshine
235 hours *
Percentage Sunshine
*
* Data from: Mercedes, Uruguay (49 KM, 30 Miles).
Gualeguaychú Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Gualeguaychú - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Gualeguaychú typically rise from around 22°C (72°F) at the start of October to approximately 25°C (77°F) by the end. Nights are cool, with lows typically ranging from 11°C (52°F) to 15°C (59°F).
Average temperatures in October
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 October
Historical weather records for Gualeguaychú in October
Browse day-by-day weather records for Gualeguaychú spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Gualeguaychú historical weather extremes in October
The extremes listed below come from historical weather data collected in Gualeguaychú from 1976 through 2025.
- On October 29, 2009, temperatures climbed to 37°C (99°F), marking the warmest October day on record.
- On October 5, 1981, Gualeguaychú saw its coldest October day with temperatures maxing out at 10°C (50°F).
- Nighttime temperatures dropped to 0°C (32°F) on October 4, 1999, marking the coldest October night on record.
Best Places in Argentina in October
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in October →
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 Gualeguaychú in October
Pleasant temperatures in October mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Gualeguaychú in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
Gualeguaychú 3-Day Forecast
More climate data for Gualeguaychú
Temperature Rainfall Sunshine Humidity
See the full Gualeguaychú climate overview or explore weather in Argentina.
Popular in October
Where to go in October - average daytime high across popular destinations.
Córdoba
25°C (77°F) Mendoza
24°C (75°F) Salta
23°C (73°F) Villa Carlos Paz23°C (73°F) Buenos Aires23°C (73°F) Mar del Plata18°C (64°F) San Carlos de Bariloche11°C (52°F) San Martín de los Andes
11°C (52°F) Bucket list
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