September 4 in San José, through the years

Typical high: 15.6°. Hottest: 18.6° (2024). Coldest night: -1.3° (2000).

YEARHIGHLOWRAIN
2025 14.7° 4.2° 1.7 mm
2024 18.6° 3.8° 0 mm
2023 17.4° 2.4° 0 mm
2022 14.4° 4.5° 0.5 mm
2021 17.4° 2.5° 0 mm
2020 17.6° 5.1° 0 mm
2019 12.8° 6.2° 0.6 mm
2018 15° 5.5° 0 mm
2017 16.6° 3.5° 0 mm
2016 15.3° 1.7 mm
2015 12.7° 4.9° 1.4 mm
2014 12.5° 2.2° 8.3 mm
2013 14.9° 1.3° 0.2 mm
2012 15.7° 3.9° 0 mm
2011 16.5° 1.3° 0 mm
2010 16.8° 2.1° 0 mm
2009 16.5° 1.6° 0 mm
2008 13.5° 2.8° 0 mm
2007 13.4° 2.4° 6.4 mm
2006 15.7° 0.9 mm
2005 17.8° -0.8° 0 mm
2004 16.5° 3.5° 0.1 mm
2003 15.1° -0.8° 0.6 mm
2002 12.5° 4.9° 6.8 mm
2001 13° 3.9° 0.1 mm
2000 17.7° -1.3° 0 mm
1999 16.1° 2.9° 5 mm
1998 16.2° 3.7° 0.4 mm
1997 17.5° 1.6° 0 mm
1996 18.5° 1.1° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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