Weather on September 18 in Guadalajara
Historical weather data for September 18 in Guadalajara, Mexico
Based on 51 years of data from GUADALAJARA (DGE)
About This Date
September 18th in Guadalajara, Mexico typically brings warm fall weather, with average highs around 27°C and lows near 17°C. Over 51 years of records, the warmest September 18th was in 2019 (24°C average), while the coldest was 1991 (18°C) — a 12°F range across recorded history. Rain or other precipitation has occurred on about 45% of September 18th dates historically, with the wettest September 18th recording 4.85" of rain. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
Planning for September 18th in Guadalajara? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 28°C (83°F) | 18°C (64°F) | -- |
| 2024 | 31°C (88°F) | 17°C (62°F) | 0 mm |
| 2021 | 27°C (81°F) | 17°C (63°F) | 109 mm |
| 2019 | 31°C (87°F) | 18°C (65°F) | 0 mm |
| 2018 | 28°C (83°F) | 16°C (60°F) | 123 mm |
| 2017 | 29°C (85°F) | 16°C (60°F) | 21 mm |
| 2016 | 28°C (83°F) | 16°C (61°F) | -- |
| 2015 | 27°C (81°F) | 17°C (63°F) | 0 mm |
| 2014 | 24°C (76°F) | 17°C (62°F) | 0 mm |
| 2012 | 28°C (83°F) | 17°C (63°F) | 0 mm |
| 2011 | 28°C (83°F) | 16°C (60°F) | 0 mm |
| 2010 | 27°C (81°F) | 15°C (59°F) | 5 mm |
| 2009 | 28°C (82°F) | 16°C (60°F) | 0 mm |
| 2008 | 27°C (80°F) | 17°C (62°F) | 96 mm |
| 2007 | 27°C (80°F) | 16°C (60°F) | 51 mm |
| 2006 | 28°C (83°F) | 15°C (59°F) | 1 mm |
| 2005 | 27°C (81°F) | 16°C (61°F) | 8 mm |
| 2004 | 26°C (79°F) | 16°C (60°F) | 1 mm |
| 2003 | 27°C (80°F) | 17°C (62°F) | 23 mm |
| 2002 | 28°C (83°F) | 18°C (64°F) | 0 mm |
| 2001 | 29°C (85°F) | 18°C (64°F) | 0 mm |
| 2000 | 25°C (77°F) | 15°C (59°F) | 0 mm |
| 1999 | 27°C (80°F) | 17°C (62°F) | 67 mm |
| 1998 | 21°C (70°F) | 17°C (62°F) | 6 mm |
| 1997 | 27°C (81°F) | 19°C (66°F) | 0 mm |
| 1996 | 29°C (84°F) | 17°C (62°F) | 0 mm |
| 1995 | 27°C (81°F) | 17°C (62°F) | 0 mm |
| 1994 | 25°C (77°F) | 16°C (61°F) | 44 mm |
| 1993 | 27°C (80°F) | 18°C (64°F) | 0 mm |
| 1992 | 25°C (77°F) | 17°C (62°F) | 0 mm |
| 1991 | 19°C (67°F) | 16°C (61°F) | 6 mm |
| 1990 | 23°C (74°F) | 16°C (60°F) | 0 mm |
| 1989 | 24°C (76°F) | 18°C (64°F) | 0 mm |
| 1988 | 28°C (83°F) | 18°C (65°F) | 3 mm |
| 1987 | 29°C (84°F) | 18°C (64°F) | 0 mm |
| 1986 | 26°C (78°F) | 16°C (60°F) | 10 mm |
| 1985 | 28°C (83°F) | 17°C (63°F) | 12 mm |
| 1984 | 26°C (78°F) | 15°C (59°F) | 23 mm |
| 1983 | 28°C (82°F) | 15°C (59°F) | 5 mm |
| 1982 | 27°C (81°F) | 16°C (61°F) | 0 mm |
| 1981 | 26°C (79°F) | 15°C (59°F) | 0 mm |
| 1980 | 29°C (84°F) | 17°C (63°F) | 0 mm |
| 1979 | 26°C (78°F) | 17°C (62°F) | 0 mm |
| 1978 | 24°C (75°F) | 16°C (60°F) | 0 mm |
| 1977 | 29°C (84°F) | 18°C (64°F) | 0 mm |
| 1976 | 25°C (77°F) | 17°C (62°F) | 59 mm |
| 1975 | 28°C (82°F) | 16°C (60°F) | 8 mm |
| 1974 | 27°C (80°F) | 14°C (57°F) | 1 mm |
| 1973 | 27°C (80°F) | 15°C (59°F) | 0 mm |
| 1972 | 27°C (80°F) | 17°C (62°F) | 56 mm |
| 1971 | 27°C (80°F) | 17°C (63°F) | 0 mm |