Climate averages 1991–2020
Weather in Argentina in December
In December, average daytime highs across the 67 cities listed in Argentina range from 17.2°C in Río Gallegos to 32.2°C in Santiago del Estero. Monthly rainfall ranges from 13 mm in Comodoro Rivadavia to 193 mm in San Ramón de la Nueva Orán.
Long-term climate patterns, not a forecast for a particular trip.
City by city
December in Argentina
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Buenos Aires | 26.3°C18.6°C | 18.6°C | 87 | 8.1 |
| Córdoba | 28.4°C17.7°C | 17.7°C | 131 | 13.3 |
| Rosario | 28.8°C18.5°C | 18.5°C | 104 | 8.6 |
| Mar del Plata | 23.7°C14.9°C | 14.9°C | 69 | 8.0 |
| Santa Fe | 29.2°C19.5°C | 19.5°C | 136 | 8.9 |
| Avellaneda | 26.7°C18.5°C | 18.5°C | 81 | 8.0 |
| Corrientes | 30.5°C21.7°C | 21.7°C | 151 | 10.4 |
| Posadas | 30.3°C21.5°C | 21.5°C | 163 | 11.7 |
| Bahía Blanca | 28.0°C16.9°C | 16.9°C | 57 | 6.2 |
| Resistencia | 30.7°C21.7°C | 21.7°C | 148 | 10.1 |
| Merlo | 27.9°C17.4°C | 17.4°C | 87 | 8.6 |
| Quilmes | 26.6°C18.1°C | 18.1°C | 81 | 8.0 |
| Santiago del Estero | 32.2°C22.3°C | 22.3°C | 130 | 11.7 |
| Laferrere | 27.6°C17.4°C | 17.4°C | 85 | 8.5 |
| Paraná | 28.8°C19.1°C | 19.1°C | 128 | 8.2 |
| Neuquén | 30.0°C16.5°C | 16.5°C | 14 | 2.5 |
| José C. Paz | 27.7°C17.3°C | 17.3°C | 92 | 8.4 |
| Formosa, Argentina | 31.3°C22.4°C | 22.4°C | 162 | 11.4 |
| La Plata | 26.1°C18.1°C | 18.1°C | 82 | 8.5 |
| Berazategui | 26.1°C18.4°C | 18.4°C | 81 | 8.0 |
| San Luis | 28.9°C18.0°C | 18.0°C | 101 | 13.1 |
| San Miguel, Argentina | 27.4°C17.5°C | 17.5°C | 92 | 8.4 |
| Ituzaingó | 30.6°C22.3°C | 22.3°C | 166 | 10.9 |
| Catamarca | 29.3°C20.3°C | 20.3°C | 129 | 15.4 |
| Río Cuarto | 28.3°C17.9°C | 17.9°C | 107 | 10.7 |
| Moreno | 27.8°C17.2°C | 17.2°C | 87 | 8.6 |
| Concordia | 29.3°C19.1°C | 19.1°C | 115 | 8.1 |
| Comodoro Rivadavia | 21.5°C12.9°C | 12.9°C | 13 | 3.0 |
| San Nicolás de los Arroyos | 28.4°C18.6°C | 18.6°C | 108 | 8.6 |
| Isidro Casanova | 27.5°C17.5°C | 17.5°C | 85 | 8.5 |
| Rawson | 29.8°C16.9°C | 16.9°C | 22 | 3.3 |
| San Rafael | 29.3°C16.7°C | 16.7°C | 53 | 8.6 |
| Tandil | 25.9°C13.7°C | 13.7°C | 76 | 8.6 |
| Ezeiza | 27.5°C17.2°C | 17.2°C | 85 | 8.5 |
| Mendoza | 27.6°C16.3°C | 16.3°C | 48 | 6.8 |
| Lomas de Zamora | 26.9°C17.9°C | 17.9°C | 85 | 8.5 |
| San Juan, Argentina | 30.3°C17.7°C | 17.7°C | 22 | 3.3 |
| Santa Rosa, Argentina | 28.9°C17.5°C | 17.5°C | 85 | 8.5 |
| Zárate | 28.0°C17.4°C | 17.4°C | 104 | 8.7 |
| Trelew | 27.3°C14.5°C | 14.5°C | 18 | 3.0 |
| Luján | 28.1°C17.1°C | 17.1°C | 93 | 8.8 |
| Villa Mercedes, Argentina | 28.8°C17.6°C | 17.6°C | 96 | 11.7 |
| Río Gallegos | 17.2°C7.5°C | 7.5°C | 48 | 12.1 |
| Cipolletti | 30.1°C16.7°C | 16.7°C | 14 | 2.5 |
| San Carlos de Bariloche | 17.2°C7.1°C | 7.1°C | 47 | 6.8 |
| Villa María | 29.1°C18.9°C | 18.9°C | 125 | 9.9 |
| Pergamino | 28.2°C17.5°C | 17.5°C | 107 | 9.0 |
| Reconquista | 30.0°C20.7°C | 20.7°C | 149 | 9.7 |
| San Vicente | 27.4°C16.8°C | 16.8°C | 86 | 8.6 |
| Olavarría | 26.6°C14.7°C | 14.7°C | 80 | 8.7 |
| Rafaela | 29.2°C18.9°C | 18.9°C | 129 | 9.4 |
| Berisso | 26.0°C18.4°C | 18.4°C | 76 | 7.4 |
| Junín | 28.0°C17.2°C | 17.2°C | 103 | 9.1 |
| San Ramón de la Nueva Orán | 30.5°C21.2°C | 21.2°C | 193 | 15.7 |
| Campana | 28.1°C17.3°C | 17.3°C | 99 | 8.6 |
| Mar del Tuyú | 22.0°C17.5°C | 17.5°C | 65 | 7.9 |
| San Martín | 30.9°C18.8°C | 18.8°C | 39 | 6.7 |
| Presidencia Roque Sáenz Peña | 31.6°C21.7°C | 21.7°C | 145 | 10.7 |
| Pilar | 27.9°C17.2°C | 17.2°C | 93 | 8.8 |
| Bella Vista | 27.7°C17.5°C | 17.5°C | 92 | 8.4 |
| Gualeguaychú | 28.6°C18.3°C | 18.3°C | 128 | 8.6 |
| Gobernador Gálvez | 28.7°C18.6°C | 18.6°C | 104 | 8.6 |
| Necochea | 23.0°C15.0°C | 15.0°C | 65 | 8.0 |
| General Roca | 30.2°C17.0°C | 17.0°C | 16 | 2.6 |
| Venado Tuerto | 28.3°C17.9°C | 17.9°C | 115 | 9.9 |
| Don Torcuato | 27.1°C18.0°C | 18.0°C | 92 | 8.4 |
| Goya | 29.9°C20.9°C | 20.9°C | 148 | 9.7 |
A rain day is a local calendar day with at least 1 mm of precipitation.