Best time to visit Half Moon Bay, CA

A month-by-month travel weather guide based on NOAA 30-year climate normals.

The most comfortable travel window in Half Moon Bay runs from February through November — 10 months of pleasant temperatures and modest rainfall.

January Wet
High
59.4°F
Low
43.4°F
Precip
5.07 in

Frequent rain. Bring waterproof gear; outdoor plans need flexibility.

Daylight ≈ 9h 41m

February Good
High
59.5°F
Low
43.0°F
Precip
4.73 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 10h 37m

March Good
High
60.4°F
Low
43.7°F
Precip
3.67 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 11h 45m

April Good
High
61.0°F
Low
44.7°F
Precip
1.81 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 12h 58m

May Good
High
61.7°F
Low
48.0°F
Precip
0.96 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 14h 1m

June Good
High
63.9°F
Low
49.9°F
Precip
0.36 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 14h 33m

July Good
High
64.8°F
Low
52.7°F
Precip
0.14 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 14h 21m

August Excellent
High
65.6°F
Low
53.9°F
Precip
0.23 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 13h 27m

September Excellent
High
66.4°F
Low
51.3°F
Precip
0.21 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 12h 14m

October Good
High
66.4°F
Low
47.9°F
Precip
1.26 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 11h 0m

November Good
High
62.6°F
Low
44.8°F
Precip
2.43 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 9h 57m

December Wet
High
59.0°F
Low
42.9°F
Precip
5.17 in

Frequent rain. Bring waterproof gear; outdoor plans need flexibility.

Daylight ≈ 9h 26m

Looking for similar climates? See Half Moon Bay's climate twins. Or jump straight to the full climate profile.