Climate averages 1991–2020
Posadas weather
in January.
A hot, wet month: the warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Posadas: daytime highs average 31.0°C and nights cool to about 22.7°C. By daytime temperature it is the warmest month of the year.
Expect about 133 mm of rain on roughly 13 days, which makes January a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 39 min on an average January day.
The nearest other city in this atlas is Encarnación (9 km away). In January its highs average 31.0°C, about as warm as Posadas, with 152 mm of rain.
Among the 67 cities listed in Argentina, Posadas ranks joint 11th of 67 for the warmest January highs and joint 57th of 67 for the driest January (rainfall, lowest first). The mean January high of those 67 cities is 29.0°C; Posadas is 2.0°C warmer than that mean.
From January to February, average highs fall by 0.9°C to 30.1°C, and monthly rainfall falls from 133 mm to 130 mm.
The annual picture
January 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
Posadas climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 31.0°C22.7°C | 22.7°C | 133 | 12.6 | 13.714 h |
| February | 30.1°C22.2°C | 22.2°C | 130 | 11.9 | 13.013 h |
| March | 29.0°C20.9°C | 20.9°C | 121 | 10.5 | 12.312 h |
| April | 26.1°C18.1°C | 18.1°C | 159 | 9.9 | 11.511 h |
| May | 22.1°C14.8°C | 14.8°C | 143 | 9.1 | 10.811 h |
| June | 20.4°C13.3°C | 13.3°C | 121 | 8.9 | 10.410 h |
| July | 19.9°C12.0°C | 12.0°C | 117 | 9.1 | 10.611 h |
| August | 22.5°C13.4°C | 13.4°C | 90 | 7.9 | 11.111 h |
| September | 24.3°C15.0°C | 15.0°C | 147 | 9.8 | 11.912 h |
| October | 26.6°C17.8°C | 17.8°C | 216 | 12.4 | 12.713 h |
| November | 28.2°C19.1°C | 19.1°C | 156 | 10.4 | 13.413 h |
| December | 30.3°C21.5°C | 21.5°C | 163 | 11.7 | 13.814 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
January in nearby cities
- Encarnación in JanuaryParaguay · 9 kmHigh 31.0°C · Low 22.6°C · 152 mm rain
- Ituzaingó in JanuaryArgentina · 78 kmHigh 31.4°C · Low 23.6°C · 138 mm rain
- Santa Rosa, Brazil in JanuaryBrazil · 152 kmHigh 29.9°C · Low 21.2°C · 143 mm rain
- Santo Ângelo in JanuaryBrazil · 192 kmHigh 29.4°C · Low 20.4°C · 167 mm rain
- Ijuí in JanuaryBrazil · 226 kmHigh 28.9°C · Low 20.0°C · 173 mm rain
- Foz do Iguaçu in JanuaryBrazil · 244 kmHigh 30.8°C · Low 23.3°C · 157 mm rain
- Ciudad del Este in JanuaryParaguay · 245 kmHigh 30.7°C · Low 23.2°C · 159 mm rain
- Formosa, Argentina in JanuaryArgentina · 260 kmHigh 32.3°C · Low 23.7°C · 119 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 Posadas) is explained once on the Posadas year overview and on the Sources, method and limits page.