Weather · Half Moon Bay, United States
Half Moon Bay Weather in October
October in Half Moon Bay averages 19°C by day and 11°C at night, with about 65mm of rain. That makes it a reasonable time to visit.
Avg high
19°C
66°F
Avg low
11°C
52°F
Rainfall
65mm
#4 wettest of 12
What to pack
Layers, plus a jacket for mornings and nights. Rain is unlikely to interrupt your plans.
Timing a trip around the weather? A Local Friend in Half Moon Bay builds it around the season for you.