Weather on September 12 in Santiago
Historical weather data for September 12 in Santiago, Chile
Avg High20°C (68°F)
Avg Low5°C (41°F)
Warmest199118°C
Coldest20264°C
Based on 50 years of data from QUINTA NORMAL
About This Date
September 12th in Santiago, Chile typically brings mild fall weather, with average highs around 20°C and lows near 5°C — a 27°F daily swing. Over 50 years of records, the warmest September 12th was in 1991 (18°C average), while the coldest was 2026 (4°C) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 14% of September 12th dates historically, with the wettest September 12th recording 0.54" of rain.
Planning for September 12th in Santiago? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 6°C (43°F) | 1°C (34°F) | -- |
| 2024 | 20°C (68°F) | 7°C (45°F) | 0 mm |
| 2023 | -- | 8°C (46°F) | 0 mm |
| 2022 | -- | 2°C (36°F) | 0 mm |
| 2021 | -- | 8°C (46°F) | 14 mm |
| 2020 | 22°C (71°F) | 3°C (37°F) | 0 mm |
| 2019 | -- | 3°C (38°F) | 0 mm |
| 2018 | -- | 7°C (44°F) | 0 mm |
| 2017 | -- | 4°C (40°F) | 0 mm |
| 2015 | -- | 3°C (37°F) | 0 mm |
| 2014 | 21°C (70°F) | 3°C (38°F) | 0 mm |
| 2013 | 19°C (67°F) | 8°C (47°F) | 0 mm |
| 2012 | -- | 6°C (42°F) | 0 mm |
| 2011 | 28°C (83°F) | 7°C (44°F) | 0 mm |
| 2010 | 19°C (67°F) | 8°C (46°F) | 0 mm |
| 2009 | -- | 3°C (37°F) | 0 mm |
| 2008 | -- | 4°C (39°F) | 0 mm |
| 2007 | 20°C (68°F) | 5°C (41°F) | -- |
| 2006 | -- | 8°C (47°F) | 0 mm |
| 2005 | -- | -1°C (30°F) | -- |
| 2004 | -- | 2°C (36°F) | 0 mm |
| 2003 | -- | 4°C (40°F) | 0 mm |
| 2002 | 17°C (63°F) | 3°C (38°F) | 0 mm |
| 2001 | 15°C (59°F) | 9°C (48°F) | 3 mm |
| 2000 | 9°C (49°F) | -- | 2 mm |
| 1999 | 19°C (67°F) | -- | -- |
| 1998 | -- | 8°C (46°F) | 0 mm |
| 1997 | -- | 3°C (38°F) | 0 mm |
| 1996 | 20°C (68°F) | 9°C (49°F) | 0 mm |
| 1995 | 19°C (67°F) | 11°C (51°F) | 1 mm |
| 1994 | 19°C (66°F) | 7°C (45°F) | 0 mm |
| 1993 | 25°C (77°F) | -- | 0 mm |
| 1992 | 23°C (74°F) | -- | -- |
| 1991 | 28°C (83°F) | 7°C (44°F) | 0 mm |
| 1990 | -- | -2°C (29°F) | 1 mm |
| 1989 | -- | 0°C (32°F) | 0 mm |
| 1988 | -- | 1°C (33°F) | 0 mm |
| 1986 | 18°C (64°F) | 10°C (50°F) | 0 mm |
| 1984 | -- | 9°C (48°F) | -- |
| 1983 | 25°C (77°F) | -- | -- |
| 1982 | -- | 9°C (48°F) | -- |
| 1981 | 16°C (61°F) | 4°C (39°F) | 0 mm |
| 1980 | 27°C (81°F) | 4°C (39°F) | 0 mm |
| 1979 | -- | 8°C (46°F) | 2 mm |
| 1978 | 17°C (63°F) | 7°C (45°F) | 0 mm |
| 1977 | -- | 6°C (43°F) | 0 mm |
| 1976 | -- | 4°C (39°F) | -- |
| 1975 | 18°C (64°F) | -- | -- |
| 1974 | -- | 7°C (45°F) | 1 mm |
| 1973 | -- | 1°C (34°F) | 0 mm |