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Santa Rosa Weather by Month
Average temperatures, rainfall and humidity for Santa Rosa, Argentina, month by month, built from OpenWeather’s historical records. Use it to see what a typical Santa Rosa month looks like before you travel — then check the live Santa Rosa forecast for the days ahead.
Warmest month
January
32°C average high
Coolest month
July
5°C average low
Wettest month
April
78 mm of rain
Driest month
June
15 mm of rain
Average temperature and rainfall in Santa Rosa 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 | 32°C | 18°C | 8°C / 45°C | 38 mm | 45% | 17 km/h |
| February | 31°C | 17°C | 3°C / 44°C | 51 mm | 51% | 15 km/h |
| March | 27°C | 15°C | 3°C / 41°C | 56 mm | 58% | 16 km/h |
| April | 22°C | 12°C | -1°C / 32°C | 78 mm | 65% | 15 km/h |
| May | 18°C | 8°C | -6°C / 29°C | 31 mm | 66% | 14 km/h |
| June | 15°C | 5°C | -7°C / 27°C | 15 mm | 61% | 14 km/h |
| July | 15°C | 5°C | -6°C / 25°C | 21 mm | 62% | 15 km/h |
| August | 18°C | 6°C | -7°C / 31°C | 21 mm | 55% | 16 km/h |
| September | 20°C | 8°C | -4°C / 34°C | 33 mm | 53% | 17 km/h |
| October | 23°C | 11°C | 0°C / 39°C | 44 mm | 55% | 17 km/h |
| November | 27°C | 14°C | 4°C / 40°C | 44 mm | 49% | 17 km/h |
| December | 31°C | 17°C | 5°C / 42°C | 34 mm | 43% | 17 km/h |
Best time to visit Santa Rosa
The most comfortable time to visit Santa Rosa is generally April and October to November, 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 467 mm a year.
Travellers who prefer heat should aim for January, when highs average 32°C. April is the month to avoid if rain would spoil your plans — it averages 78 mm, roughly 5× the rainfall of the driest month (June).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Santa Rosa forecast for what is happening now.