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Merlo Weather in October
Thinking of visiting Merlo in October? Expect high temperatures reaching 24°C (75°F) during the day, dropping to 10°C (50°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Merlo in October
Climate statistics over the past 30 years suggest around 7 days of rain, with 72 mm (2.8 in) average for the month. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in Merlo in October
If you're visiting Merlo in October, expect excellent temperatures with highs of 24°C (75°F) and overnight lows of 10°C (50°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. 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.If your ideal day consists of dry skies and pleasant temperatures, March, April, August, September and October typically offer the best circumstances for Merlo.
Merlo Temperature in October
Min Temperature
10°C (50°F)
Max Temperature
24°C (75°F)
Chance of Rain
22%
Precipitation
72 mm (2.8 in)
Rainy days
7 days
Merlo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Merlo - and find the best time to visit.
Daily Historical Temperatures
47-year average (1976-2025)
Based on our historical records, temperatures in Merlo typically stay consistent throughout October, with daily highs averaging around 24°C (75°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 15°C (59°F).
Average temperatures in October
Daily Historical Precipitation
47-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 Merlo in October
Browse day-by-day weather records for Merlo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Merlo historical weather extremes in October
The extremes listed below come from historical weather data collected in Merlo from 1998 through 2025.
- The warmest day in October was on October 31, 2009, with a maximum of 40°C (104°F).
- On October 12, 2017, Merlo saw its coldest October day with temperatures maxing out at 10°C (50°F).
- Nighttime temperatures dropped to -2°C (28°F) on October 9, 2022, 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 Merlo 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. Rain gear is recommended, you can expect wet weather on multiple days.
What To Do in Merlo in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping4/10 -
Outdoor sports9/10
Merlo 3-Day Forecast
More climate data for Merlo
See the full Merlo 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
Need travel inspiration? Check out our bucket list articles and be inspired.
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