Chile in September: where is it warmest?
In September, Antofagasta is the warmest place with 19 °C by day, Punta Arenas the coolest with 8 °C. 3 of 5 destinations have good holiday weather.
All destinations in September, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Antofagasta | 99 | 19° | 15° | 9 h | 0 |
| Hanga Roa | 38 | 19° | 20° | 6 h | 7 |
| Santiago de Chile | 81 | 18° | – | 6 h | 8 |
| Valparaíso | 81 | 16° | 13° | 6 h | 3 |
| Punta Arenas | 17 | 8° | 6° | 5 h | 11 |
Chile in September: quick answers
Chile in September: where is it warmest?
The warmest places in September are Antofagasta (19 °C), Hanga Roa (19 °C) and Santiago de Chile (18 °C).
Chile in September: where is the sea warmest?
The sea is warmest at Hanga Roa (20 °C), Antofagasta (15 °C) and Valparaíso (13 °C).
Chile in September: where is the weather best?
The best holiday weather in September – warm, sunny and dry – is in Antofagasta, Santiago de Chile and Valparaíso.
Chile month by month
Chile: weather & best time to visit
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences