September 1 in San José, through the years

Typical high: 31.2°. Hottest: 35.8° (2025). Coldest night: 20° (2020).

YEARHIGHLOWRAIN
2025 35.8° 22.5° 1.2 mm
2024 31.4° 20.1° 2.7 mm
2023 32.6° 22.8° 12.1 mm
2022 29.3° 20.6° 10.8 mm
2021 28.9° 21.1° 3.8 mm
2020 33° 20° 0.4 mm
2019 35° 22.6° 2.2 mm
2018 33.7° 22.4° 1.5 mm
2017 33.3° 20.9° 0.1 mm
2016 30.3° 21.9° 3.6 mm
2015 32.4° 23° 30 mm
2014 32° 22° 0.6 mm
2013 30.2° 21.5° 3.5 mm
2012 31.8° 21° 0 mm
2011 31.8° 20° 4.7 mm
2010 29.9° 21.2° 9 mm
2009 34.6° 22.3° 0.3 mm
2008 27.5° 21.9° 7 mm
2007 30.5° 20.5° 10.7 mm
2006 30.9° 20.6° 3.2 mm
2005 30.7° 21.3° 11.2 mm
2004 33.5° 22° 0.2 mm
2003 29.5° 20.4° 9.6 mm
2002 28° 22.1° 14.2 mm
2001 31.8° 21.8° 12.4 mm
2000 28.4° 22° 2.8 mm
1999 27.7° 21.1° 6.2 mm
1998 29.2° 20.9° 3.8 mm
1997 33.3° 22.6° 3.3 mm
1996 29.4° 20.3° 1.4 mm
Source: ERA5 reanalysis (Copernicus C3S)

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