Weather on December 21 in Santiago
Historical weather data for December 21 in Santiago, Chile
Avg High29°C (84°F)
Avg Low11°C (52°F)
Warmest201123°C
Coldest197414°C
Based on 50 years of data from QUINTA NORMAL
About This Date
December 21st in Santiago, Chile typically brings warm winter weather, with average highs around 29°C and lows near 11°C — a 32°F daily swing. Over 50 years of records, the warmest December 21st was in 2011 (23°C average), while the coldest was 1974 (14°C) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 8% of December 21st dates historically.
Planning for December 21st in Santiago? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 26°C (79°F) | 21°C (69°F) | -- |
| 2024 | -- | 13°C (56°F) | 0" |
| 2023 | -- | 11°C (52°F) | 0.2" |
| 2022 | -- | 13°C (56°F) | 0" |
| 2021 | -- | 13°C (56°F) | 0" |
| 2020 | -- | 12°C (53°F) | 0" |
| 2019 | -- | 14°C (58°F) | 0" |
| 2018 | -- | 12°C (53°F) | 0" |
| 2015 | 27°C (81°F) | 10°C (50°F) | 0" |
| 2014 | -- | 11°C (52°F) | 0.1" |
| 2013 | -- | 12°C (54°F) | 0" |
| 2012 | -- | 8°C (46°F) | 0" |
| 2011 | 32°C (90°F) | 14°C (58°F) | 0" |
| 2010 | 33°C (92°F) | -- | -- |
| 2009 | 32°C (89°F) | 11°C (52°F) | 0" |
| 2008 | 28°C (82°F) | 12°C (53°F) | 0" |
| 2007 | -- | 13°C (55°F) | 0" |
| 2006 | 29°C (84°F) | 10°C (50°F) | -- |
| 2005 | 31°C (87°F) | -- | -- |
| 2004 | 29°C (85°F) | 10°C (50°F) | 0" |
| 2003 | 32°C (89°F) | 9°C (49°F) | 0" |
| 2002 | 27°C (81°F) | 13°C (55°F) | 0" |
| 2001 | 31°C (87°F) | 12°C (53°F) | -- |
| 2000 | 27°C (81°F) | 12°C (54°F) | 0.08" |
| 1999 | -- | 8°C (47°F) | -- |
| 1998 | -- | 8°C (47°F) | 0" |
| 1997 | 27°C (81°F) | 13°C (56°F) | 0" |
| 1996 | -- | 9°C (49°F) | 0" |
| 1995 | -- | 9°C (49°F) | 0" |
| 1994 | 31°C (88°F) | -- | 0" |
| 1993 | 29°C (85°F) | -- | 0.2" |
| 1992 | 29°C (85°F) | 9°C (49°F) | 0" |
| 1991 | 26°C (78°F) | -- | -- |
| 1990 | 33°C (91°F) | 12°C (53°F) | 0" |
| 1989 | 30°C (86°F) | -- | 0" |
| 1988 | 30°C (86°F) | -- | 0" |
| 1986 | -- | 13°C (56°F) | 0" |
| 1985 | 33°C (91°F) | 13°C (55°F) | 0" |
| 1984 | 28°C (82°F) | 10°C (50°F) | 0" |
| 1983 | -- | 12°C (53°F) | 0" |
| 1982 | 31°C (87°F) | -- | -- |
| 1981 | 28°C (82°F) | 6°C (43°F) | 0" |
| 1980 | -- | 8°C (46°F) | 0" |
| 1979 | -- | 10°C (50°F) | 0" |
| 1978 | 30°C (86°F) | 12°C (54°F) | 0" |
| 1977 | 30°C (86°F) | -- | -- |
| 1976 | 28°C (82°F) | -- | -- |
| 1975 | 27°C (81°F) | 7°C (45°F) | -- |
| 1974 | 18°C (64°F) | 10°C (50°F) | 0" |
| 1973 | 28°C (82°F) | 11°C (52°F) | 0" |