August 23 in Sion, through the years

Typical high: 20.8°. Hottest: 28.9° (2002). Coldest night: 3.7° (2014).

YEARHIGHLOWRAIN
2025 23.2° 6.2° 0 mm
2024 26.6° 10° 0 mm
2023 16.3° 12.8° 21.6 mm
2022 26.2° 12.1° 0 mm
2021 10.3° 8.4° 16.3 mm
2020 21.8° 0 mm
2019 17.9° 6.7° 0.8 mm
2018 22° 8.5° 4.5 mm
2017 25.4° 13.3° 0 mm
2016 17.4° 10.4° 12.6 mm
2015 24.1° 5.4° 0 mm
2014 17.6° 3.7° 0 mm
2013 24° 8.1° 0 mm
2012 20.1° 9.5° 9.5 mm
2011 21.2° 3.3 mm
2010 17.8° 6.5° 2 mm
2009 14.8° 6.7° 6.2 mm
2008 23.4° 7.5° 0 mm
2007 17° 6.3° 0.2 mm
2006 19.7° 10.6° 0.9 mm
2005 14.8° 9.6° 1 mm
2004 9.7° 6.9° 0.3 mm
2003 18.7° 8.8° 0.8 mm
2002 28.9° 11.6° 0 mm
2001 21.2° 10.5° 1 mm
2000 25.6° 9.8° 0 mm
1999 27.6° 7.9° 0 mm
1998 23.4° 11.4° 0 mm
1997 23.3° 10.4° 0 mm
1996 25.1° 9.7° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

Full Sion forecast → · Will it rain today?