Weather on September 18 in São Paulo
Historical weather data for September 18 in São Paulo, Brazil
Avg High26°C (79°F)
Avg Low15°C (59°F)
Warmest202024°C
Coldest197915°C
Based on 31 years of data from SAO PAULO
About This Date
September 18th in São Paulo, Brazil typically brings pleasant fall weather, with average highs around 26°C and lows near 15°C. Over 31 years of records, the warmest September 18th was in 2020 (24°C average), while the coldest was 1979 (15°C) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 35% of September 18th dates historically, with the wettest September 18th recording 1.63" of rain.
Planning for September 18th in São Paulo? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 28°C (82°F) | 13°C (55°F) | -- |
| 2023 | -- | 18°C (64°F) | -- |
| 2022 | -- | 8°C (46°F) | -- |
| 2020 | 31°C (87°F) | 18°C (64°F) | 0" |
| 2018 | -- | 18°C (65°F) | 0.1" |
| 2014 | -- | 16°C (60°F) | -- |
| 2011 | -- | 13°C (56°F) | -- |
| 2010 | 31°C (88°F) | -- | 0" |
| 2009 | -- | 16°C (60°F) | 0" |
| 2007 | -- | 15°C (59°F) | 0.05" |
| 2006 | -- | 15°C (59°F) | 1.6" |
| 2005 | -- | 14°C (57°F) | 0.3" |
| 2002 | 30°C (86°F) | -- | 0" |
| 2001 | -- | 12°C (53°F) | 0" |
| 2000 | -- | 16°C (60°F) | 0.3" |
| 1999 | -- | 15°C (59°F) | -- |
| 1998 | -- | 18°C (65°F) | -- |
| 1997 | -- | 13°C (55°F) | 0" |
| 1996 | 17°C (63°F) | -- | 0.27" |
| 1995 | -- | 16°C (61°F) | 0.35" |
| 1994 | -- | 15°C (59°F) | 0" |
| 1993 | -- | 13°C (56°F) | 0" |
| 1992 | 26°C (79°F) | -- | 0.1" |
| 1991 | -- | 17°C (63°F) | 0" |
| 1990 | -- | 12°C (54°F) | 0" |
| 1988 | -- | 13°C (55°F) | 0.72" |
| 1983 | -- | 14°C (58°F) | 1.63" |
| 1982 | 29°C (85°F) | -- | 0" |
| 1981 | -- | 15°C (59°F) | 0" |
| 1979 | 16°C (61°F) | 14°C (57°F) | 0.7" |
| 1974 | -- | 18°C (64°F) | 0" |