September 6 in San José, through the years

Typical high: 18.2°. Hottest: 21.1° (2020). Coldest night: -3.2° (2016).

YEARHIGHLOWRAIN
2025 12.7° 4.7° 4.6 mm
2024 19.7° 0.1 mm
2023 18° 2.4° 3 mm
2022 18.1° -2.7° 0 mm
2021 19.6° 2.6° 0 mm
2020 21.1° 4.9° 1.7 mm
2019 12.6° 2.7° 8.7 mm
2018 19.3° 0.5° 0 mm
2017 19.2° 3.1° 0.8 mm
2016 18.7° -3.2° 0 mm
2015 17.9° 1.9° 0 mm
2014 15.4° 2.8° 0 mm
2013 18.4° 1.7° 0 mm
2012 20.8° -0.1° 0 mm
2011 19.8° 1.9° 0 mm
2010 18.4° 1.8° 0 mm
2009 19° -3.2° 0 mm
2008 19.3° -2.7° 0 mm
2007 15.9° 2.3 mm
2006 19° -0.1° 0 mm
2005 19.4° -1.8° 0 mm
2004 18.6° 3.8° 0 mm
2003 17.2° 2.9° 1.1 mm
2002 18.5° -0.4° 0 mm
2001 18.9° 2.6° 0 mm
2000 19.4° -1.9° 0 mm
1999 18.3° -1.1° 0 mm
1998 17.9° 2.7° 1.7 mm
1997 19° 1.1° 0 mm
1996 17.3° -2.2° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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