May weather in San Fernando, CA
The average temperature in San Fernando in May is °F (°F–°F). Average precipitation: 0.55 inches.
May is a spring month in San Fernando, and is cooler than the annual average of 0°F. Expect about 3 days with precipitation. Daylight averages about 13h 47m.
Avg High
°F
Avg Low
°F
Precipitation
0.55 in
Daylight
13h 47m
May records in San Fernando
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 75.0°F (2024) | 48.0°F (2025) | 0.67 in (1955) |
| May 2 | 82.0°F (2024) | 50.0°F (2024) | 0.36 in (1998) |
| May 3 | 78.1°F (2024) | 53.1°F (2024) | 0.15 in (1998) |
| May 4 | 73.9°F (2024) | 51.1°F (2025) | 1.93 in (1998) |
| May 5 | 64.9°F (2025) | 50.0°F (2024) | 1.10 in (1998) |
| May 6 | 69.1°F (2024) | 50.0°F (2024) | 0.76 in (1971) |
| May 7 | 77.0°F (2024) | 48.0°F (2024) | 1.02 in (1955) |
| May 8 | 81.0°F (2025) | 43.0°F (2024) | 0.66 in (1977) |
| May 9 | 88.0°F (2025) | 50.0°F (2024) | 3.46 in (1977) |
| May 10 | 98.1°F (2025) | 51.1°F (2024) | 0.55 in (1977) |
| May 11 | 100.9°F (2025) | 53.1°F (2024) | 0.83 in (1957) |
| May 12 | 93.0°F (2025) | 52.0°F (2024) | 1.14 in (1998) |
| May 13 | 82.9°F (2024) | 48.0°F (2025) | 0.63 in (1998) |
| May 14 | 82.0°F (2024) | 50.0°F (2024) | 0.21 in (1949) |
| May 15 | 84.0°F (2024) | 48.9°F (2025) | 0.48 in (1944) |
| May 16 | 80.1°F (2025) | 50.0°F (2025) | 0.45 in (1944) |
| May 17 | 79.0°F (2025) | 53.1°F (2025) | 0.40 in (1994) |
| May 18 | 71.1°F (2025) | 48.0°F (2025) | 0.33 in (2011) |
| May 19 | 82.0°F (2025) | 52.0°F (2024) | 1.13 in (1949) |
| May 20 | 84.0°F (2025) | 53.1°F (2024) | 0.15 in (2019) |
| May 21 | 91.9°F (2025) | 53.1°F (2024) | 0.17 in (1980) |
| May 22 | 93.9°F (2025) | 50.0°F (2024) | 0.32 in (2006) |
| May 23 | 93.9°F (2025) | 51.1°F (2024) | 0.65 in (2006) |
| May 24 | 79.0°F (2025) | 51.1°F (2024) | 0.52 in (2008) |
| May 25 | 73.0°F (2025) | 52.0°F (2024) | 0.32 in (2000) |
| May 26 | 79.0°F (2025) | 51.1°F (2024) | 0.40 in (1946) |
| May 27 | 78.1°F (2025) | 50.0°F (2024) | 0.27 in (2019) |
| May 28 | 82.9°F (2025) | 50.0°F (2024) | 0.71 in (1990) |
| May 29 | 81.0°F (2024) | 51.1°F (2024) | 0.34 in (1990) |
| May 30 | 80.1°F (2024) | 52.0°F (2024) | 0.25 in (1948) |
| May 31 | 91.9°F (2025) | 53.1°F (2024) | 0.20 in (1967) |