September 1 in Heidelberg, through the years

Typical high: 23.5°. Hottest: 29.9° (2025). Coldest night: -0.3° (2013).

YEARHIGHLOWRAIN
2025 29.9° 10.1° 0 mm
2024 23.9° 4.8° 0 mm
2023 26.9° 0 mm
2022 22° 4.8° 0 mm
2021 26.8° 7.2° 0 mm
2020 14.1° 9.4° 0.3 mm
2019 21.5° 1.5° 0 mm
2018 27.6° 10.2° 0 mm
2017 22.3° 10.1° 0 mm
2016 25.1° 9.3° 0 mm
2015 25.2° 11.8° 0.2 mm
2014 19.7° 4.9° 0 mm
2013 15° -0.3° 0 mm
2012 22.7° 7.8° 0 mm
2011 27.2° 10.1° 0 mm
2010 27.2° 8.4° 0 mm
2009 28.3° 12.2° 0 mm
2008 17.4° 3.2° 0 mm
2007 27.6° 11° 0 mm
2006 19.8° 2.5° 0 mm
2005 22.9° 9.3° 0 mm
2004 25.5° 10.5° 0 mm
2003 28.1° 11.5° 0 mm
2002 21.7° 5.9° 0 mm
2001 17° 0 mm
2000 25.3° 8.6° 0 mm
1999 23.5° 4.6° 0 mm
1998 24.5° 11.6° 0 mm
1997 21.7° 9.6° 1.2 mm
1996 25.2° 6.7° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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