Half Moon Bay weather in February

San Francisco forum regulars describe February as storm-and-clear, not steady rain: winter here comes in “discrete storms lasting a few days followed by clear weather,” roughly 40% rainy at most, with shorter storms than January. Expect “lows in the 40s at night” and “50s during the day” — layers from polar fleece to a light winter jacket, plus an umbrella and windbreaker for when a storm rolls through. The upside regulars keep repeating: smaller crowds and very low rates. One practical warning for anyone adding Big Sur — Pacific storms this month can close stretches of Highway 1 to rock slides. Our record: 15.3°C days, 6.4°C nights, 5.8 rain days and an 11.2°C sea — cool and mostly dry, with real storm risk stacked into a handful of days rather than spread evenly.