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Formosa Weather in December
With daytime temperatures of 33°C (91°F) and nighttime lows of 22°C (72°F), December in Formosa brings very high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 168 mm (6.6 in) falls on average.
Rainfall in Formosa in December
Rain is expected on roughly 9 days, totalling around 168 mm (6.6 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Formosa in December
December in Formosa brings typical temperatures with highs around 33°C (91°F) and lows of 22°C (72°F). For most visitors, the main thing to prepare for is the heat during the day. With lows of 22°C (72°F), the nights are warm and generally comfortable.
Sunshine in Formosa in December
The month enjoys around 283 hours of sunshine, creating mostly sunny days with good weather conditions.December in Formosa can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Formosa Temperature in December
Min Temperature
22°C (72°F)
Max Temperature
33°C (91°F)
Chance of Rain
29%
Precipitation
168 mm (6.6 in)
Rainy days
9 days
Humidity
71%
Sunshine
283 hours
Percentage Sunshine
67%
Formosa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Formosa - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Formosa typically stay consistent throughout December, with daily highs averaging around 33°C (91°F). Nights are warm, with lows typically ranging from 21°C (70°F) to 23°C (73°F).
Average temperatures in December
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 December
Historical weather records for Formosa in December
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.
Formosa historical weather extremes in December
Our historical data for Formosa spans 1976 to 2025, revealing these weather extremes.
- The hottest December day on record in Formosa reached 42°C (108°F) (December 22, 2011).
- The coldest December day was on December 9, 2024, with a maximum of 21°C (70°F).
- Formosa registered its coldest December night on December 1, 2001, with temperatures dropping to 10°C (50°F).
Best Places in Argentina in December
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in December →
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 Formosa in December
Pack for serious heat in Formosa in December. 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. It's going to pour! Pack a good poncho and prepare for very wet conditions. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Formosa in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming8/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Formosa 3-Day Forecast
More climate data for Formosa
Temperature Rainfall Sunshine Humidity
See the full Formosa climate overview or explore weather in Argentina.
Popular in December
Where to go in December - average daytime high across popular destinations.
Córdoba
30°C (86°F) Mendoza
30°C (86°F) Buenos Aires29°C (84°F) Villa Carlos Paz
27°C (81°F) Salta25°C (77°F) Mar del Plata24°C (75°F) San Martín de los Andes
18°C (64°F) San Carlos de Bariloche18°C (64°F) Bucket list
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