Climate averages 1991–2020
Asunción weather
in December.
A hot, wet month: the 3rd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Asunción: daytime highs average 31.2°C and nights cool to about 22.5°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 160 mm of rain on roughly 13 days, which makes December a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 41 min on an average December day.
The nearest other city in this atlas is San Lorenzo (15 km away). In December its highs average 31.1°C, about as warm as Asunción, with 161 mm of rain.
Among the 7 cities listed in Paraguay, Asunción ranks 2nd of 7 for the warmest December highs and 1st of 7 for the driest December (rainfall, lowest first). The mean December high of those 7 cities is 31.0°C; Asunción is 0.2°C warmer than that mean.
From December to January, average highs rise by 1.0°C to 32.1°C, and monthly rainfall falls from 160 mm to 121 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Asunción climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.1°C23.7°C | 23.7°C | 121 | 12.5 | 13.514 h |
| February | 31.3°C23.2°C | 23.2°C | 142 | 12.7 | 13.013 h |
| March | 30.2°C22.0°C | 22.0°C | 119 | 10.7 | 12.312 h |
| April | 27.5°C19.4°C | 19.4°C | 155 | 9.8 | 11.512 h |
| May | 23.3°C15.9°C | 15.9°C | 136 | 8.9 | 10.911 h |
| June | 21.9°C14.6°C | 14.6°C | 101 | 8.7 | 10.611 h |
| July | 21.6°C13.2°C | 13.2°C | 74 | 7.9 | 10.711 h |
| August | 24.3°C14.7°C | 14.7°C | 64 | 6.5 | 11.211 h |
| September | 26.4°C16.6°C | 16.6°C | 107 | 8.7 | 11.912 h |
| October | 28.4°C19.4°C | 19.4°C | 185 | 12.1 | 12.713 h |
| November | 29.4°C20.3°C | 20.3°C | 189 | 11.6 | 13.313 h |
| December, selected | 31.2°C22.5°C | 22.5°C | 160 | 12.8 | 13.714 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- San Lorenzo in DecemberParaguay · 15 kmHigh 31.1°C · Low 22.5°C · 161 mm rain
- Nemby in DecemberParaguay · 16 kmHigh 31.1°C · Low 22.4°C · 165 mm rain
- Limpio in DecemberParaguay · 21 kmHigh 31.5°C · Low 22.8°C · 161 mm rain
- Capiatá in DecemberParaguay · 22 kmHigh 31.0°C · Low 22.3°C · 161 mm rain
- Formosa, Argentina in DecemberArgentina · 113 kmHigh 31.3°C · Low 22.4°C · 162 mm rain
- Corrientes in DecemberArgentina · 270 kmHigh 30.5°C · Low 21.7°C · 151 mm rain
- Ituzaingó in DecemberArgentina · 273 kmHigh 30.6°C · Low 22.3°C · 166 mm rain
- Resistencia in DecemberArgentina · 276 kmHigh 30.7°C · Low 21.7°C · 148 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Asunción) is explained once on the Asunción year overview and on the Sources, method and limits page.