Climate averages 1991–2020
Weather in Chile in September
In September, average daytime highs across the 40 cities listed in Chile range from 6.7°C in Punta Arenas to 25.2°C in Copiapó. Monthly rainfall ranges from under 1 mm in Alto Hospicio to 185 mm in Puerto Montt.
Long-term climate patterns, not a forecast for a particular trip.
City by city
September in Chile
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Santiago | 17.6°C5.0°C | 5.0°C | 55 | 7.8 |
| Puente Alto | 17.2°C3.8°C | 3.8°C | 72 | 9.0 |
| Maipú | 18.4°C5.9°C | 5.9°C | 55 | 7.8 |
| Antofagasta | 18.5°C11.7°C | 11.7°C | 5.2 | 1.8 |
| Viña del Mar | 17.3°C9.2°C | 9.2°C | 24 | 2.6 |
| Valparaíso | 15.6°C10.8°C | 10.8°C | 27 | 2.9 |
| San Bernardo | 18.4°C4.8°C | 4.8°C | 55 | 7.8 |
| Puerto Montt | 12.0°C5.5°C | 5.5°C | 185 | 17.4 |
| Arica | 18.1°C12.8°C | 12.8°C | 14 | 4.5 |
| Peñalolén | 16.3°C4.9°C | 4.9°C | 72 | 9.0 |
| Temuco | 14.3°C4.7°C | 4.7°C | 113 | 12.3 |
| Concepción | 15.4°C6.8°C | 6.8°C | 62 | 7.0 |
| Rancagua | 17.8°C4.5°C | 4.5°C | 81 | 10.1 |
| Quilicura | 18.0°C6.4°C | 6.4°C | 77 | 10.1 |
| Iquique (approximate) | 22.8°C14.4°C | 14.4°C | 5.6 | 1.3 |
| Talca | 17.5°C6.1°C | 6.1°C | 62 | 5.7 |
| Calama | 23.3°C3.3°C | 3.3°C | 0.6 | 0.2 |
| Coquimbo | 19.3°C11.7°C | 11.7°C | 5.4 | 0.9 |
| La Serena | 20.5°C12.4°C | 12.4°C | 5.4 | 0.9 |
| Talcahuano | 14.6°C7.5°C | 7.5°C | 62 | 7.0 |
| Chillán | 16.3°C5.4°C | 5.4°C | 96 | 7.3 |
| Colina | 18.8°C7.8°C | 7.8°C | 77 | 10.1 |
| Alto Hospicio | 20.2°C10.9°C | 10.9°C | 0.2 | 0.1 |
| Osorno | 12.9°C4.5°C | 4.5°C | 129 | 14.0 |
| Valdivia | 13.2°C6.0°C | 6.0°C | 153 | 12.6 |
| Villa Mercedes, Chile | 14.5°C4.5°C | 4.5°C | 145 | 10.8 |
| Quilpué | 17.4°C8.3°C | 8.3°C | 24 | 2.6 |
| Copiapó | 25.2°C13.3°C | 13.3°C | 1.8 | 0.4 |
| Los Ángeles | 15.3°C5.2°C | 5.2°C | 94 | 9.4 |
| San Pedro de la Paz | 14.8°C7.3°C | 7.3°C | 62 | 7.0 |
| Punta Arenas | 6.7°C1.8°C | 1.8°C | 54 | 12.2 |
| Coronel | 15.3°C7.0°C | 7.0°C | 84 | 7.9 |
| Curicó | 17.4°C6.0°C | 6.0°C | 68 | 7.1 |
| Lampa | 19.5°C8.1°C | 8.1°C | 39 | 4.8 |
| San Antonio, Chile | 15.8°C8.6°C | 8.6°C | 28 | 3.0 |
| Peñaflor | 19.0°C6.2°C | 6.2°C | 41 | 4.7 |
| Chiguayante | 15.6°C6.7°C | 6.7°C | 84 | 7.8 |
| Ovalle | 22.8°C10.3°C | 10.3°C | 7.9 | 1.5 |
| Padre Las Casas | 14.0°C4.4°C | 4.4°C | 113 | 12.3 |
| Paine | 19.0°C5.8°C | 5.8°C | 57 | 7.2 |
A rain day is a local calendar day with at least 1 mm of precipitation.