May weather in Temecula, CA
The average temperature in Temecula in May is 64.1°F (52.9°F–75.2°F). Average precipitation: 0.36 inches.
May is a spring month in Temecula, and is cooler than the annual average of 65.1°F. Daily temperatures swing about 22.3°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 13h 44m. For travel, May is one of the best months of the year to visit.
Avg High
75.2°F
Avg Low
52.9°F
Precipitation
0.36 in
Daylight
13h 44m
May records in Temecula
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 97.2°F (2014) | 45.5°F (2010) | 0.05 in (2023) |
| May 2 | 97.0°F (2014) | 47.7°F (2018) | 0.05 in (2018) |
| May 3 | 95.0°F (2013) | 45.1°F (2023) | 0.07 in (2025) |
| May 4 | 95.4°F (2018) | 48.2°F (2023) | 0.80 in (2023) |
| May 5 | 96.4°F (2018) | 48.4°F (2014) | 0.17 in (2024) |
| May 6 | 92.5°F (2020) | 44.1°F (2024) | 0.36 in (2013) |
| May 7 | 92.7°F (2020) | 44.2°F (2017) | 1.13 in (2017) |
| May 8 | 80.8°F (2009) | 44.1°F (2017) | 0.24 in (2015) |
| May 9 | 95.5°F (2025) | 47.1°F (2015) | 0.04 in (2023) |
| May 10 | 101.8°F (2025) | 46.2°F (2022) | 0.01 in (2008) |
| May 11 | 92.7°F (2025) | 44.1°F (2022) | 0.02 in (2009) |
| May 12 | 98.2°F (2013) | 45.5°F (2010) | 0.00 in (2008) |
| May 13 | 102.6°F (2013) | 50.4°F (2008) | 0.00 in (2008) |
| May 14 | 99.3°F (2014) | 49.5°F (2015) | 0.38 in (2015) |
| May 15 | 104.9°F (2014) | 46.4°F (2011) | 0.20 in (2015) |
| May 16 | 99.1°F (2008) | 44.1°F (2011) | 0.35 in (2019) |
| May 17 | 97.7°F (2008) | 47.7°F (2011) | 0.26 in (2011) |
| May 18 | 95.7°F (2008) | 47.3°F (2019) | 0.28 in (2011) |
| May 19 | 93.9°F (2008) | 49.1°F (2011) | 0.43 in (2019) |
| May 20 | 97.5°F (2017) | 48.0°F (2020) | 0.31 in (2019) |
| May 21 | 90.7°F (2025) | 49.8°F (2021) | 0.03 in (2015) |
| May 22 | 86.9°F (2017) | 47.5°F (2021) | 0.96 in (2008) |
| May 23 | 87.1°F (2017) | 48.2°F (2008) | 0.46 in (2008) |
| May 24 | 90.1°F (2021) | 45.0°F (2010) | 0.03 in (2018) |
| May 25 | 85.8°F (2021) | 47.3°F (2010) | 0.02 in (2012) |
| May 26 | 86.0°F (2014) | 47.5°F (2008) | 0.12 in (2019) |
| May 27 | 88.0°F (2020) | 46.6°F (2012) | 0.04 in (2019) |
| May 28 | 84.0°F (2014) | 46.8°F (2019) | 0.01 in (2009) |
| May 29 | 85.5°F (2010) | 47.8°F (2008) | 0.14 in (2011) |
| May 30 | 102.7°F (2025) | 46.0°F (2011) | 0.05 in (2018) |
| May 31 | 90.0°F (2025) | 51.3°F (2012) | 0.01 in (2018) |