December in Asuncion brings very high temperatures, with daytime highs of 33°C (91°F) and nights around 22°C (72°F). Quite a bit of rainfall is expected, around 166 mm (6.5 in), so pack an umbrella.
If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Asuncion. Our weather planner can help you explore destinations with more pleasant weather conditions.
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Pick a month to see the average temperature, rainfall and sunshine in Asuncion - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Asuncion typically stay consistent throughout December, with daily highs averaging around 33°C (91°F). Nights are warm, with lows around 22°C (72°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Asuncion spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 40 years of weather observations in Asuncion between 1985 and 2025, these are the recorded extremes.
Find out more about the weather in Paraguay and which places have the best travel conditions in this month. See all of Paraguay in December →
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).
Get ready for hot weather in December! Lightweight, breathable fabrics are your best friend during this month. Cotton and linen shirts, shorts, sundresses, and sandals will keep you comfortable. Light colors help reflect the heat, avoid wearing black. Also bring a poncho, it will rain a lot! Waterproof everything you can. 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 Asuncion climate overview or explore weather in Paraguay.
Where to go in December - average daytime high across popular destinations.
San Bernardino
33°C (91°F) Areguá33°C (91°F) Asuncion33°C (91°F) Luque33°C (91°F) Encarnación32°C (90°F) Ybycuí32°C (90°F) Villarrica33°C (91°F) Ciudad del Este32°C (90°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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