March weather in Half Moon Bay, CA
The average temperature in Half Moon Bay in March is 52.1°F (43.7°F–60.4°F). Average precipitation: 3.67 inches.
March is a spring month in Half Moon Bay, and is cooler than the annual average of 54.9°F. Daily temperatures swing about 16.7°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 11h 45m. For travel, March is a comfortable month to visit.
Avg High
60.4°F
Avg Low
43.7°F
Precipitation
3.67 in
Daylight
11h 45m
March records in Half Moon Bay
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 72.0°F (1954) | 34.0°F (1955) | 2.08 in (1983) |
| March 2 | 72.0°F (1994) | 30.9°F (2017) | 1.34 in (1991) |
| March 3 | 73.0°F (1994) | 32.0°F (1966) | 0.77 in (1983) |
| March 4 | 77.0°F (1959) | 33.1°F (2006) | 1.30 in (1970) |
| March 5 | 75.9°F (1972) | 34.0°F (1991) | 1.01 in (2017) |
| March 6 | 71.1°F (1955) | 35.1°F (1950) | 1.65 in (2016) |
| March 7 | 73.9°F (2026) | 33.1°F (1964) | 1.15 in (2016) |
| March 8 | 79.0°F (2004) | 30.9°F (1991) | 1.34 in (1986) |
| March 9 | 71.1°F (1941) | 33.1°F (1951) | 2.22 in (1995) |
| March 10 | 82.0°F (2004) | 32.0°F (2009) | 1.95 in (1986) |
| March 11 | 75.0°F (2005) | 30.9°F (2022) | 1.02 in (2016) |
| March 12 | 86.0°F (2005) | 30.0°F (2022) | 1.41 in (1968) |
| March 13 | 79.0°F (2017) | 32.0°F (2006) | 1.06 in (1975) |
| March 14 | 78.1°F (2017) | 33.1°F (1951) | 2.22 in (1983) |
| March 15 | 73.9°F (1974) | 35.1°F (1955) | 1.58 in (1977) |
| March 16 | 78.1°F (1972) | 30.0°F (1991) | 1.67 in (1954) |
| March 17 | 82.9°F (2004) | 33.1°F (2008) | 1.23 in (1983) |
| March 18 | 75.0°F (1978) | 34.0°F (2018) | 1.33 in (1989) |
| March 19 | 79.0°F (2010) | 35.1°F (2006) | 0.67 in (2011) |
| March 20 | 75.0°F (2010) | 35.1°F (1966) | 0.98 in (1995) |
| March 21 | 75.0°F (1997) | 35.1°F (1955) | 1.19 in (2017) |
| March 22 | 70.0°F (1952) | 32.0°F (2008) | 1.31 in (1987) |
| March 23 | 72.0°F (1966) | 32.0°F (2009) | 1.30 in (1991) |
| March 24 | 81.0°F (2025) | 34.0°F (1951) | 0.98 in (1958) |
| March 25 | 81.0°F (2025) | 35.1°F (1942) | 1.30 in (2006) |
| March 26 | 77.0°F (1969) | 32.0°F (1944) | 1.43 in (1971) |
| March 27 | 75.9°F (1952) | 30.9°F (2023) | 1.88 in (1979) |
| March 28 | 79.0°F (1968) | 28.9°F (2007) | 1.66 in (1963) |
| March 29 | 77.0°F (2004) | 28.0°F (2007) | 0.71 in (1982) |
| March 30 | 73.9°F (1945) | 35.1°F (1977) | 3.85 in (1940) |
| March 31 | 82.9°F (2000) | 30.9°F (2008) | 2.80 in (1982) |