Climate averages 1991–2020
Santa Rosa, Argentina weather
in August.
A mild, fairly dry month: the 10th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Santa Rosa, Argentina: daytime highs average 16.2°C and nights cool to about 5.7°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 27 mm of rain on roughly 4 days, which makes August a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 44 min on an average August day.
The nearest other city in this atlas is Bahía Blanca (294 km away). In August its highs average 15.1°C, 1.1°C cooler than Santa Rosa, Argentina, with 35 mm of rain.
Among the 67 cities listed in Argentina, Santa Rosa, Argentina ranks joint 44th of 67 for the warmest August highs and 20th of 67 for the driest August (rainfall, lowest first). The mean August high of those 67 cities is 17.2°C; Santa Rosa, Argentina is 1.1°C cooler than that mean.
From August to September, average highs rise by 2.8°C to 18.9°C, and monthly rainfall rises from 27 mm to 48 mm.
The annual picture
August 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
Santa Rosa, Argentina climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.1°C19.0°C | 19.0°C | 82 | 9.0 | 14.314 h |
| February | 28.3°C17.7°C | 17.7°C | 81 | 7.9 | 13.513 h |
| March | 25.6°C15.8°C | 15.8°C | 86 | 8.0 | 12.312 h |
| April | 21.0°C11.8°C | 11.8°C | 67 | 6.3 | 11.211 h |
| May | 17.0°C8.6°C | 8.6°C | 30 | 5.0 | 10.210 h |
| June | 13.9°C5.1°C | 5.1°C | 16 | 3.3 | 9.710 h |
| July | 13.3°C4.1°C | 4.1°C | 19 | 3.7 | 9.910 h |
| August, selected | 16.2°C5.7°C | 5.7°C | 27 | 4.0 | 10.711 h |
| September | 18.9°C8.0°C | 8.0°C | 48 | 5.8 | 11.812 h |
| October | 21.9°C11.2°C | 11.2°C | 82 | 9.6 | 13.013 h |
| November | 25.7°C14.5°C | 14.5°C | 74 | 8.0 | 14.014 h |
| December | 28.9°C17.5°C | 17.5°C | 85 | 8.5 | 14.615 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
August in nearby cities
- Bahía Blanca in AugustArgentina · 294 kmHigh 15.1°C · Low 6.4°C · 35 mm rain
- Villa Mercedes, Argentina in AugustArgentina · 344 kmHigh 18.6°C · Low 6.5°C · 21 mm rain
- Olavarría in AugustArgentina · 355 kmHigh 14.7°C · Low 4.9°C · 54 mm rain
- Junín in AugustArgentina · 377 kmHigh 17.2°C · Low 7.0°C · 45 mm rain
- Venado Tuerto in AugustArgentina · 383 kmHigh 17.8°C · Low 7.4°C · 36 mm rain
- Río Cuarto in AugustArgentina · 388 kmHigh 17.8°C · Low 6.8°C · 20 mm rain
- General Roca in AugustArgentina · 395 kmHigh 15.3°C · Low 4.6°C · 14 mm rain
- San Luis in AugustArgentina · 414 kmHigh 18.9°C · Low 7.0°C · 15 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 Santa Rosa) is explained once on the Santa Rosa, Argentina year overview and on the Sources, method and limits page.