Weather on August 18 in Santiago
Historical weather data for August 18 in Santiago, Chile
Avg High18°C (65°F)
Avg Low4°C (40°F)
Warmest201419°C
Coldest19979°C
Based on 50 years of data from QUINTA NORMAL
About This Date
August 18th in Santiago, Chile typically brings mild summer weather, with average highs around 18°C and lows near 4°C — a 25°F daily swing. Over 50 years of records, the warmest August 18th was in 2014 (19°C average), while the coldest was 1997 (9°C) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 16% of August 18th dates historically, with the wettest August 18th recording 0.98" of rain.
Planning for August 18th in Santiago? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 16°C (60°F) | 6°C (43°F) | -- |
| 2025 | 16°C (61°F) | 4°C (40°F) | 0 mm |
| 2024 | 17°C (63°F) | 6°C (42°F) | -- |
| 2023 | -- | 8°C (47°F) | 0 mm |
| 2022 | -- | 1°C (33°F) | 0 mm |
| 2021 | -- | 11°C (52°F) | 2 mm |
| 2020 | 18°C (65°F) | 1°C (34°F) | 0 mm |
| 2019 | 17°C (62°F) | 6°C (43°F) | 0 mm |
| 2018 | 20°C (68°F) | 9°C (48°F) | 0 mm |
| 2017 | 23°C (73°F) | 6°C (42°F) | 0 mm |
| 2016 | 19°C (67°F) | 3°C (37°F) | 0 mm |
| 2015 | -- | 3°C (38°F) | 0 mm |
| 2014 | 31°C (88°F) | 7°C (45°F) | 0 mm |
| 2013 | 27°C (81°F) | 4°C (40°F) | 0 mm |
| 2012 | -- | 2°C (36°F) | 2 mm |
| 2011 | 11°C (51°F) | -- | 0 mm |
| 2010 | -- | 5°C (41°F) | 0 mm |
| 2008 | 17°C (63°F) | 7°C (44°F) | 0 mm |
| 2007 | -- | 3°C (37°F) | -- |
| 2006 | -- | 2°C (36°F) | -- |
| 2005 | -- | 7°C (45°F) | 0 mm |
| 2002 | 14°C (58°F) | -- | 4 mm |
| 2001 | -- | 7°C (45°F) | 1 mm |
| 2000 | -- | 3°C (37°F) | -- |
| 1999 | -- | 2°C (35°F) | -- |
| 1998 | 19°C (66°F) | -- | 0 mm |
| 1997 | 13°C (55°F) | 7°C (44°F) | 25 mm |
| 1996 | 21°C (69°F) | 9°C (49°F) | 0 mm |
| 1995 | -- | -2°C (28°F) | -- |
| 1994 | 17°C (62°F) | -- | -- |
| 1993 | 22°C (72°F) | -1°C (30°F) | 0 mm |
| 1992 | -- | 1°C (33°F) | -- |
| 1991 | -- | 0°C (32°F) | 0 mm |
| 1990 | 19°C (67°F) | 3°C (37°F) | 0 mm |
| 1989 | -- | 8°C (46°F) | 0 mm |
| 1988 | 17°C (62°F) | 9°C (49°F) | 0 mm |
| 1987 | -- | 5°C (41°F) | 0 mm |
| 1985 | 22°C (72°F) | -- | 0 mm |
| 1984 | -- | 4°C (40°F) | 0 mm |
| 1983 | -- | 0°C (32°F) | -- |
| 1982 | 15°C (59°F) | 7°C (44°F) | -- |
| 1981 | -- | 0°C (32°F) | 0 mm |
| 1980 | -- | 2°C (36°F) | 0 mm |
| 1979 | -- | 2°C (36°F) | 0 mm |
| 1978 | -- | -1°C (30°F) | 0 mm |
| 1977 | -- | 0°C (32°F) | 0 mm |
| 1976 | -- | 5°C (41°F) | -- |
| 1975 | 19°C (66°F) | 8°C (46°F) | -- |
| 1974 | -- | 6°C (43°F) | 0 mm |
| 1973 | 14°C (57°F) | 6°C (43°F) | 0 mm |