September 6 in San José, through the years

Typical high: 28.2°. Hottest: 31.4° (2025). Coldest night: 19.2° (2002).

YEARHIGHLOWRAIN
2025 31.4° 20.4° 1.5 mm
2024 29.2° 20.8° 8.9 mm
2023 29.4° 20.5° 19.9 mm
2022 29° 19.5° 10.8 mm
2021 30.9° 20° 1.8 mm
2020 27° 20° 7.2 mm
2019 28.7° 20.2° 1.6 mm
2018 27.5° 20.5° 0.6 mm
2017 30.1° 20.6° 8.2 mm
2016 29.1° 20.9° 2 mm
2015 27.8° 19.9° 37.3 mm
2014 26.4° 20.4° 4.8 mm
2013 29.9° 19.8° 10.1 mm
2012 30.1° 20.3° 5.4 mm
2011 26.2° 19.4° 22.9 mm
2010 27.9° 20.7° 0.2 mm
2009 28.3° 20.8° 19.9 mm
2008 25° 20.8° 30.6 mm
2007 24.5° 20.4° 21 mm
2006 27° 20.7° 1.9 mm
2005 26.6° 20.4° 1.5 mm
2004 28.9° 20.3° 6.1 mm
2003 30° 20.3° 11.4 mm
2002 30.3° 19.2° 1 mm
2001 26.6° 20.6° 10 mm
2000 27.1° 19.4° 4.2 mm
1999 28.8° 19.8° 1.6 mm
1998 25° 20.6° 21.2 mm
1997 26.6° 19.3° 1.6 mm
1996 29.3° 19.9° 5.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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