May weather in Suisun City, CA
The average temperature in Suisun City in May is 65.0°F (52.2°F–77.8°F). Average precipitation: 0.74 inches.
May is a spring month in Suisun City, and is warmer than the annual average of 61.7°F. Daily temperatures swing about 25.6°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 14h 4m. For travel, May is one of the best months of the year to visit.
Avg High
77.8°F
Avg Low
52.2°F
Precipitation
0.74 in
Daylight
14h 4m
May records in Suisun City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 97.0°F (1996) | 37.9°F (1967) | 0.67 in (1995) |
| May 2 | 95.0°F (2004) | 36.0°F (1971) | 0.68 in (2009) |
| May 3 | 93.9°F (1996) | 42.1°F (1959) | 0.80 in (2003) |
| May 4 | 98.1°F (1990) | 35.1°F (1976) | 0.56 in (2024) |
| May 5 | 98.1°F (1987) | 39.9°F (1988) | 0.37 in (1998) |
| May 6 | 97.0°F (1987) | 36.0°F (1986) | 0.45 in (1994) |
| May 7 | 99.0°F (1987) | 35.1°F (1970) | 0.77 in (1994) |
| May 8 | 98.1°F (2001) | 39.0°F (1970) | 0.32 in (1955) |
| May 9 | 93.0°F (2025) | 39.0°F (1953) | 0.78 in (2005) |
| May 10 | 93.9°F (1987) | 37.9°F (1968) | 0.45 in (1966) |
| May 11 | 96.1°F (2001) | 37.0°F (1986) | 0.17 in (2010) |
| May 12 | 93.9°F (1972) | 39.0°F (1986) | 0.61 in (1998) |
| May 13 | 97.0°F (1976) | 39.0°F (1968) | 0.53 in (1998) |
| May 14 | 96.1°F (1976) | 39.0°F (1968) | 0.33 in (1957) |
| May 15 | 95.0°F (2014) | 43.0°F (1968) | 2.17 in (1996) |
| May 16 | 100.9°F (2008) | 42.1°F (1955) | 0.71 in (2019) |
| May 17 | 102.0°F (2008) | 39.9°F (1974) | 0.37 in (2011) |
| May 18 | 100.0°F (1997) | 37.9°F (1974) | 0.33 in (2019) |
| May 19 | 98.1°F (1997) | 43.0°F (1986) | 1.30 in (2019) |
| May 20 | 97.0°F (2001) | 42.1°F (1962) | 0.70 in (2002) |
| May 21 | 98.1°F (2001) | 37.9°F (1986) | 0.61 in (2002) |
| May 22 | 100.0°F (2000) | 39.0°F (1986) | 0.60 in (1958) |
| May 23 | 100.9°F (2000) | 42.1°F (2010) | 0.31 in (1990) |
| May 24 | 100.9°F (2000) | 43.0°F (1980) | 0.40 in (1993) |
| May 25 | 100.0°F (1982) | 42.1°F (1980) | 0.21 in (1997) |
| May 26 | 100.9°F (1984) | 37.9°F (1953) | 0.27 in (2011) |
| May 27 | 100.0°F (1984) | 42.1°F (1953) | 0.76 in (1990) |
| May 28 | 100.9°F (1984) | 37.9°F (1956) | 1.16 in (1990) |
| May 29 | 111.0°F (1984) | 39.9°F (1956) | 0.64 in (1998) |
| May 30 | 100.9°F (1984) | 39.0°F (1985) | 0.17 in (1993) |
| May 31 | 100.9°F (2001) | 44.1°F (1971) | 0.27 in (1990) |