Climate averages 1991–2020
Rosario weather
in March.
A warm, wet month: the 4th warmest and the wettest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
March is a warm month in Rosario: daytime highs average 26.6°C and nights cool to about 17.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 126 mm of rain on roughly 8 days, which makes March a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 19 min on an average March day.
The nearest other city in this atlas is Gobernador Gálvez (9 km away). In March its highs average 26.5°C, about as warm as Rosario, with 126 mm of rain.
Among the 67 cities listed in Argentina, Rosario ranks joint 18th of 67 for the warmest March highs and joint 58th of 67 for the driest March (rainfall, lowest first). The mean March high of those 67 cities is 25.6°C; Rosario is 0.9°C warmer than that mean.
From March to April, average highs fall by 3.9°C to 22.7°C, and monthly rainfall falls from 126 mm to 103 mm.
The annual picture
March 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
Rosario climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.0°C20.1°C | 20.1°C | 102 | 8.1 | 14.114 h |
| February | 28.4°C19.3°C | 19.3°C | 113 | 8.5 | 13.313 h |
| March, selected | 26.6°C17.5°C | 17.5°C | 126 | 7.6 | 12.312 h |
| April | 22.7°C14.1°C | 14.1°C | 103 | 7.9 | 11.311 h |
| May | 18.8°C11.1°C | 11.1°C | 66 | 6.0 | 10.510 h |
| June | 16.0°C8.1°C | 8.1°C | 40 | 4.6 | 10.010 h |
| July | 15.4°C6.9°C | 6.9°C | 36 | 5.0 | 10.210 h |
| August | 18.1°C8.1°C | 8.1°C | 53 | 4.6 | 10.911 h |
| September | 20.4°C10.1°C | 10.1°C | 61 | 5.8 | 11.912 h |
| October | 23.2°C13.1°C | 13.1°C | 111 | 9.7 | 12.913 h |
| November | 26.3°C15.8°C | 15.8°C | 115 | 8.3 | 13.814 h |
| December | 28.8°C18.5°C | 18.5°C | 104 | 8.6 | 14.314 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
March in nearby cities
- Gobernador Gálvez in MarchArgentina · 9 kmHigh 26.5°C · Low 17.7°C · 126 mm rain
- San Nicolás de los Arroyos in MarchArgentina · 59 kmHigh 26.3°C · Low 17.8°C · 117 mm rain
- Pergamino in MarchArgentina · 105 kmHigh 25.9°C · Low 16.4°C · 100 mm rain
- Paraná in MarchArgentina · 135 kmHigh 26.7°C · Low 18.2°C · 132 mm rain
- Santa Fe in MarchArgentina · 144 kmHigh 27.1°C · Low 18.6°C · 138 mm rain
- Venado Tuerto in MarchArgentina · 152 kmHigh 25.9°C · Low 16.7°C · 113 mm rain
- Junín in MarchArgentina · 185 kmHigh 25.6°C · Low 16.1°C · 100 mm rain
- Zárate in MarchArgentina · 197 kmHigh 25.9°C · Low 16.6°C · 108 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 Rosario) is explained once on the Rosario year overview and on the Sources, method and limits page.
Gobernador Gálvez lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.