Weather on September 20 in São Paulo
Historical weather data for September 20 in São Paulo, Brazil
Avg High26°C (79°F)
Avg Low16°C (60°F)
Warmest202528°C
Coldest197911°C
Based on 34 years of data from SAO PAULO
About This Date
September 20th in São Paulo, Brazil typically brings pleasant fall weather, with average highs around 26°C and lows near 16°C. Over 34 years of records, the warmest September 20th was in 2025 (28°C average), while the coldest was 1979 (11°C) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 15% of September 20th dates historically.
Planning for September 20th in São Paulo? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 33°C (91°F) | 22°C (72°F) | -- |
| 2023 | -- | 18°C (65°F) | -- |
| 2022 | -- | 14°C (57°F) | -- |
| 2020 | 31°C (87°F) | -- | -- |
| 2012 | 34°C (93°F) | 19°C (66°F) | 0.1" |
| 2011 | -- | 14°C (58°F) | -- |
| 2010 | -- | 14°C (57°F) | -- |
| 2009 | 26°C (79°F) | -- | 0" |
| 2008 | 19°C (66°F) | 14°C (57°F) | -- |
| 2006 | -- | 17°C (62°F) | -- |
| 2005 | 26°C (78°F) | -- | 0" |
| 2004 | -- | 18°C (64°F) | 0" |
| 2003 | -- | 14°C (57°F) | 0" |
| 2002 | 30°C (86°F) | -- | -- |
| 2001 | -- | 14°C (57°F) | -- |
| 2000 | -- | 19°C (66°F) | -- |
| 1999 | 27°C (81°F) | 16°C (60°F) | -- |
| 1998 | 19°C (66°F) | -- | -- |
| 1997 | 24°C (75°F) | -- | 0.46" |
| 1996 | -- | 14°C (57°F) | 0" |
| 1995 | 28°C (82°F) | -- | 0.25" |
| 1993 | -- | 18°C (65°F) | 0.09" |
| 1992 | 20°C (68°F) | 15°C (59°F) | 0" |
| 1991 | 18°C (64°F) | 13°C (56°F) | 0" |
| 1990 | 31°C (88°F) | -- | 0" |
| 1983 | 22°C (72°F) | -- | 0.47" |
| 1982 | 27°C (80°F) | 12°C (54°F) | 0" |
| 1981 | 35°C (95°F) | 19°C (66°F) | 0" |
| 1979 | 12°C (54°F) | 10°C (50°F) | 0" |
| 1977 | -- | 18°C (64°F) | 0" |
| 1976 | -- | 13°C (55°F) | 0" |
| 1975 | -- | 16°C (61°F) | 0" |
| 1974 | -- | 11°C (52°F) | 0" |
| 1973 | 32°C (90°F) | 15°C (59°F) | 0" |