August 18 in Røyken, through the years

Typical high: 20.3°. Hottest: 27.4° (2020). Coldest night: 9.7° (1999).

YEARHIGHLOWRAIN
2025 25.9° 12.6° 0 mm
2024 17.7° 10.6° 0.3 mm
2023 21° 13° 0.7 mm
2022 18.9° 14.8° 5.9 mm
2021 17.9° 12.3° 0 mm
2020 27.4° 14.2° 0.3 mm
2019 17.6° 12.1° 1.2 mm
2018 17.3° 11.6° 1.1 mm
2017 18.6° 14° 15.4 mm
2016 21.5° 13.1° 0 mm
2015 22° 11.4° 0 mm
2014 15° 10.4° 13.7 mm
2013 18.3° 13.6° 8.6 mm
2012 19.2° 15° 11.7 mm
2011 19.5° 12.4° 0.3 mm
2010 19.4° 15.4° 15.7 mm
2009 19.7° 11.4° 0 mm
2008 15.9° 12.7° 1.6 mm
2007 19.2° 11.2° 0 mm
2006 22.8° 13.1° 0 mm
2005 19.6° 13.6° 0 mm
2004 20.5° 14.6° 0.8 mm
2003 21.4° 12.4° 0 mm
2002 25.5° 16.6° 1.5 mm
2001 21° 11.3° 0 mm
2000 18.6° 11.6° 0 mm
1999 19.8° 9.7° 0 mm
1998 18.1° 11.6° 0 mm
1997 25.3° 16.6° 0 mm
1996 24.4° 13.6° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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