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January in Formosa brings very high temperatures, with highs of 34°C (93°F) and nights dropping to 23°C (73°F). Rainfall is on the higher side this month, averaging around 124 mm (4.9 in), so keep a rain jacket handy.
January in Formosa has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Pick a month to see the average temperature, rainfall and sunshine in Formosa - and find the best time to visit.
51-year average (1976-2026)
Based on our historical records, temperatures in Formosa typically stay consistent throughout January, with daily highs averaging around 34°C (93°F). Nights are warm, with lows around 23°C (73°F).
51-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 Formosa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Our historical data for Formosa spans 1990 to 2025, revealing these weather extremes.
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).
Pack for serious heat in Formosa in January. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Formosa 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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