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Posadas Weather by Month
Average temperatures, rainfall and humidity for Posadas, Argentina, month by month, built from OpenWeather’s historical records. Use it to see what a typical Posadas month looks like before you travel — then check the live Posadas forecast for the days ahead.
Warmest month
February
33°C average high
Coolest month
July
12°C average low
Wettest month
April
82 mm of rain
Driest month
July
20 mm of rain
Average temperature and rainfall in Posadas by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 33°C | 22°C | 13°C / 42°C | 45 mm | 67% | 10 km/h |
| February | 33°C | 22°C | 5°C / 41°C | 40 mm | 67% | 10 km/h |
| March | 31°C | 20°C | 11°C / 39°C | 56 mm | 70% | 10 km/h |
| April | 28°C | 18°C | 6°C / 36°C | 82 mm | 74% | 9 km/h |
| May | 23°C | 14°C | 3°C / 34°C | 46 mm | 79% | 10 km/h |
| June | 22°C | 12°C | -1°C / 31°C | 33 mm | 79% | 10 km/h |
| July | 22°C | 12°C | -1°C / 33°C | 20 mm | 75% | 11 km/h |
| August | 24°C | 13°C | -2°C / 37°C | 31 mm | 69% | 11 km/h |
| September | 27°C | 15°C | 4°C / 39°C | 40 mm | 70% | 11 km/h |
| October | 28°C | 17°C | 8°C / 41°C | 61 mm | 71% | 11 km/h |
| November | 30°C | 19°C | 6°C / 40°C | 61 mm | 66% | 11 km/h |
| December | 32°C | 21°C | 13°C / 40°C | 71 mm | 68% | 10 km/h |
Best time to visit Posadas
The most comfortable time to visit Posadas is generally May and July to August, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around April, totalling about 586 mm a year.
Travellers who prefer heat should aim for February, when highs average 33°C. April is the month to avoid if rain would spoil your plans — it averages 82 mm, roughly 4× the rainfall of the driest month (July).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Posadas forecast for what is happening now.