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Thinking of visiting Merlo in January? Expect high temperatures reaching 28°C (82°F) during the day, dropping to 16°C (61°F) at night, and be prepared for the wettest month of the year.
Our weather planner can help you find worldwide destinations with pleasant weather during this period. March, April, August, September and October typically offer the best weather for Merlo.
Pick a month to see the average temperature, rainfall and sunshine in Merlo - and find the best time to visit.
49-year average (1976-2026)
Based on our historical records, temperatures in Merlo typically stay consistent throughout January, with daily highs averaging around 28°C (82°F). Nights are pleasant, with lows around 18°C (64°F).
49-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
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.
Based on 26 years of weather observations (1999-2025), these are the most extreme conditions recorded in Merlo.
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in January →
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).
Warm but pleasant conditions in Merlo in January. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Merlo climate overview or explore weather in Argentina.
Where to go in January - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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