Weather on May 21 in Santiago
Historical weather data for May 21 in Santiago, Chile
Avg High18°C (65°F)
Avg Low5°C (41°F)
Warmest202518°C
Coldest20197°C
Based on 51 years of data from QUINTA NORMAL
About This Date
May 21st in Santiago, Chile typically brings mild spring weather, with average highs around 18°C and lows near 5°C. Over 51 years of records, the warmest May 21st was in 2025 (18°C average), while the coldest was 2019 (7°C) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 16% of May 21st dates historically, with the wettest May 21st recording 1.61" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for May 21st in Santiago? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 13°C (55°F) | 6°C (42°F) | -- |
| 2025 | 24°C (76°F) | 11°C (52°F) | 0 mm |
| 2024 | -- | 8°C (47°F) | 0 mm |
| 2023 | -- | 7°C (45°F) | 0 mm |
| 2022 | 20°C (68°F) | 5°C (41°F) | 0 mm |
| 2021 | 14°C (58°F) | 7°C (44°F) | 14 mm |
| 2020 | -- | 8°C (46°F) | 4 mm |
| 2019 | 14°C (58°F) | 1°C (33°F) | 0 mm |
| 2018 | 25°C (77°F) | 4°C (40°F) | 0 mm |
| 2017 | 19°C (67°F) | 3°C (38°F) | 0 mm |
| 2016 | -- | 11°C (51°F) | 0 mm |
| 2015 | -- | 7°C (45°F) | 0 mm |
| 2014 | 14°C (57°F) | 7°C (44°F) | 3 mm |
| 2013 | 22°C (71°F) | 5°C (41°F) | 0 mm |
| 2012 | -- | 4°C (40°F) | 0 mm |
| 2010 | 23°C (73°F) | 7°C (44°F) | 0 mm |
| 2009 | -- | 6°C (42°F) | 0 mm |
| 2008 | -- | 12°C (53°F) | 17 mm |
| 2007 | 16°C (60°F) | 1°C (34°F) | -- |
| 2006 | -- | 4°C (40°F) | -- |
| 2005 | -- | -2°C (28°F) | -- |
| 2004 | 15°C (59°F) | 7°C (45°F) | 8 mm |
| 2003 | 18°C (65°F) | 8°C (46°F) | 41 mm |
| 2002 | 18°C (64°F) | 1°C (34°F) | -- |
| 2001 | 16°C (60°F) | 7°C (45°F) | -- |
| 2000 | -- | 7°C (44°F) | -- |
| 1999 | 20°C (68°F) | 2°C (36°F) | -- |
| 1998 | -- | 9°C (49°F) | 0 mm |
| 1997 | 13°C (55°F) | 3°C (38°F) | 11 mm |
| 1996 | 18°C (64°F) | 2°C (35°F) | 0 mm |
| 1995 | -- | 2°C (36°F) | 0 mm |
| 1994 | 23°C (74°F) | 1°C (33°F) | 0 mm |
| 1993 | 17°C (62°F) | 9°C (49°F) | 0 mm |
| 1992 | -- | 8°C (46°F) | 0 mm |
| 1991 | -- | 5°C (41°F) | 0 mm |
| 1990 | -- | -3°C (26°F) | 0 mm |
| 1989 | -- | 6°C (42°F) | 0 mm |
| 1988 | 17°C (63°F) | -- | 0 mm |
| 1987 | -- | 3°C (37°F) | 0 mm |
| 1986 | -- | 6°C (42°F) | 0 mm |
| 1984 | -- | 8°C (46°F) | -- |
| 1983 | 14°C (57°F) | 6°C (43°F) | 0 mm |
| 1982 | 17°C (62°F) | -- | -- |
| 1981 | 23°C (73°F) | 3°C (37°F) | 0 mm |
| 1980 | 19°C (66°F) | -- | 0 mm |
| 1979 | 23°C (73°F) | 3°C (37°F) | 0 mm |
| 1978 | -- | 0°C (32°F) | 0 mm |
| 1977 | 26°C (79°F) | 5°C (41°F) | 0 mm |
| 1976 | 16°C (61°F) | 0°C (32°F) | -- |
| 1974 | -- | 10°C (50°F) | 0 mm |
| 1973 | -- | 6°C (43°F) | 2 mm |