September 4 in San José, through the years

Typical high: 29.5°. Hottest: 32.8° (2015). Coldest night: 18.5° (1996).

YEARHIGHLOWRAIN
2025 31.4° 20.8° 0.1 mm
2024 32.4° 20.3° 0 mm
2023 32.6° 24.2° 0.7 mm
2022 32° 21.6° 0 mm
2021 29.6° 21.2° 0 mm
2020 29.8° 21.8° 0 mm
2019 31.3° 19.8° 0 mm
2018 27.1° 21.7° 0.3 mm
2017 31.1° 21.6° 0.3 mm
2016 32.7° 22.3° 0 mm
2015 32.8° 22.7° 0 mm
2014 32° 22.1° 0 mm
2013 31.3° 20.9° 0 mm
2012 31.2° 21.5° 0 mm
2011 29.2° 20.8° 0 mm
2010 26.7° 20.5° 3.6 mm
2009 28.9° 22.4° 0.3 mm
2008 28.9° 22.1° 0 mm
2007 30.2° 20.1° 0 mm
2006 29.7° 22° 3.1 mm
2005 27.1° 19.9° 0.8 mm
2004 30.8° 20° 0.3 mm
2003 28.3° 20.1° 0 mm
2002 27.5° 21.4° 2.2 mm
2001 27.2° 21.2° 0.2 mm
2000 27° 20.7° 0.9 mm
1999 26.1° 20.5° 1.6 mm
1998 25.3° 20.9° 0 mm
1997 28.3° 22° 0.1 mm
1996 26.5° 18.5° 1.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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