Weather on September 17 in Santiago
Historical weather data for September 17 in Santiago, Chile
Based on 51 years of data from QUINTA NORMAL
About This Date
September 17th in Santiago, Chile typically brings pleasant fall weather, with average highs around 22°C and lows near 7°C — a 27°F daily swing. Over 51 years of records, the warmest September 17th was in 2025 (19°C average), while the coldest was 2002 (11°C) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 16% of September 17th dates historically, with the wettest September 17th recording 0.59" of rain. The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for September 17th in Santiago? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 25°C (77°F) | 10°C (50°F) | -- |
| 2025 | 26°C (79°F) | 13°C (55°F) | -- |
| 2024 | -- | 6°C (43°F) | 0 mm |
| 2023 | 22°C (71°F) | -- | 0 mm |
| 2022 | 25°C (77°F) | 9°C (49°F) | -- |
| 2021 | -- | 6°C (42°F) | 0 mm |
| 2020 | -- | 7°C (44°F) | 0 mm |
| 2019 | 21°C (69°F) | 5°C (41°F) | 0 mm |
| 2018 | 20°C (68°F) | -- | -- |
| 2017 | 32°C (89°F) | 7°C (44°F) | 0 mm |
| 2015 | -- | 9°C (49°F) | 0 mm |
| 2014 | 15°C (59°F) | 10°C (50°F) | 0 mm |
| 2013 | -- | -2°C (28°F) | 1 mm |
| 2012 | 18°C (64°F) | 8°C (46°F) | 0 mm |
| 2011 | -- | 5°C (41°F) | 0 mm |
| 2009 | 19°C (67°F) | -- | -- |
| 2008 | 26°C (79°F) | 9°C (49°F) | 0 mm |
| 2007 | 18°C (64°F) | 6°C (42°F) | -- |
| 2006 | -- | 7°C (44°F) | -- |
| 2005 | 22°C (72°F) | -- | -- |
| 2004 | 27°C (81°F) | 11°C (51°F) | 0 mm |
| 2003 | 26°C (78°F) | 8°C (46°F) | 0 mm |
| 2002 | 18°C (65°F) | 4°C (39°F) | 4 mm |
| 2001 | -- | 8°C (47°F) | 1 mm |
| 2000 | 19°C (67°F) | 7°C (45°F) | -- |
| 1999 | -- | 4°C (40°F) | 0 mm |
| 1998 | -- | 9°C (48°F) | 0 mm |
| 1997 | -- | 10°C (50°F) | 0 mm |
| 1996 | 26°C (78°F) | 9°C (48°F) | 0 mm |
| 1995 | 23°C (73°F) | 11°C (51°F) | 0 mm |
| 1994 | -- | 9°C (48°F) | 0 mm |
| 1993 | 18°C (64°F) | -- | 0 mm |
| 1992 | -- | 2°C (35°F) | 12 mm |
| 1991 | -- | 9°C (49°F) | 15 mm |
| 1990 | -- | 8°C (46°F) | 0 mm |
| 1989 | 19°C (66°F) | 11°C (51°F) | 0 mm |
| 1988 | -- | 2°C (36°F) | -- |
| 1987 | -- | 5°C (41°F) | 0 mm |
| 1986 | -- | -1°C (30°F) | -- |
| 1985 | 20°C (68°F) | -- | 0 mm |
| 1984 | 21°C (69°F) | 12°C (53°F) | -- |
| 1983 | 13°C (55°F) | -- | -- |
| 1981 | 21°C (70°F) | 5°C (41°F) | 0 mm |
| 1980 | 22°C (72°F) | 1°C (34°F) | 0 mm |
| 1979 | -- | -1°C (30°F) | 0 mm |
| 1978 | -- | 6°C (43°F) | 11 mm |
| 1977 | -- | 1°C (34°F) | 0 mm |
| 1976 | 26°C (79°F) | 4°C (39°F) | -- |
| 1975 | 15°C (59°F) | 9°C (48°F) | -- |
| 1974 | -- | 2°C (36°F) | 0 mm |
| 1973 | -- | 5°C (41°F) | 0 mm |