May weather in San Jose, CA
The average temperature in San Jose in May is 63.0°F (52.1°F–73.8°F). Average precipitation: 0.39 inches.
May is a spring month in San Jose, and is warmer than the annual average of 60.7°F. Daily temperatures swing about 21.7°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 14h 0m. For travel, May is one of the best months of the year to visit.
Avg High
73.8°F
Avg Low
52.1°F
Precipitation
0.39 in
Daylight
14h 0m
May records in San Jose
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 91.9°F (2014) | 44.1°F (2008) | 0.04 in (2023) |
| May 2 | 91.9°F (2013) | 45.0°F (2002) | 0.59 in (2003) |
| May 3 | 91.0°F (2017) | 44.1°F (2008) | 0.06 in (2003) |
| May 4 | 87.1°F (2013) | 44.1°F (1999) | 0.67 in (2024) |
| May 5 | 89.1°F (2011) | 45.0°F (1999) | 0.16 in (2005) |
| May 6 | 88.0°F (2007) | 45.0°F (2024) | 0.17 in (2016) |
| May 7 | 93.0°F (2001) | 46.0°F (1999) | 0.03 in (2000) |
| May 8 | 95.0°F (2001) | 42.1°F (1999) | 0.23 in (2005) |
| May 9 | 87.1°F (2025) | 43.0°F (2022) | 0.12 in (2005) |
| May 10 | 87.1°F (2001) | 41.0°F (2022) | 0.09 in (2010) |
| May 11 | 90.0°F (2012) | 44.1°F (2022) | 0.00 in (1999) |
| May 12 | 86.0°F (2014) | 43.0°F (2000) | 0.11 in (2025) |
| May 13 | 95.0°F (2014) | 44.1°F (1999) | 0.00 in (1999) |
| May 14 | 93.9°F (2014) | 43.0°F (1999) | 0.47 in (2015) |
| May 15 | 99.0°F (2008) | 43.0°F (1999) | 0.36 in (2019) |
| May 16 | 98.1°F (2008) | 43.0°F (1999) | 0.11 in (2019) |
| May 17 | 97.0°F (2009) | 48.0°F (1999) | 0.07 in (2010) |
| May 18 | 88.0°F (2016) | 45.0°F (2019) | 0.26 in (2019) |
| May 19 | 87.1°F (2017) | 46.0°F (2011) | 0.47 in (2019) |
| May 20 | 89.1°F (2001) | 48.0°F (2019) | 0.37 in (2002) |
| May 21 | 97.0°F (2000) | 46.9°F (1999) | 0.42 in (2006) |
| May 22 | 93.0°F (2000) | 46.0°F (2002) | 0.01 in (2019) |
| May 23 | 89.1°F (2000) | 45.0°F (2010) | 0.00 in (1999) |
| May 24 | 93.0°F (2022) | 45.0°F (2013) | 0.00 in (1999) |
| May 25 | 95.0°F (2020) | 46.9°F (2013) | 0.12 in (2010) |
| May 26 | 97.0°F (2020) | 48.0°F (2011) | 0.06 in (2019) |
| May 27 | 93.9°F (2020) | 50.0°F (2008) | 0.04 in (2010) |
| May 28 | 91.9°F (2003) | 45.0°F (2010) | 0.07 in (2004) |
| May 29 | 84.0°F (2002) | 48.0°F (2006) | 0.00 in (1999) |
| May 30 | 99.0°F (2001) | 48.0°F (2011) | 0.00 in (1999) |
| May 31 | 97.0°F (2001) | 51.1°F (1999) | 0.00 in (1999) |