National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Half Moon Bay Airport (KHAF)

Lat: 37.5136°NLon: 122.4996°WElev: 65.0ft.

Mist

13°C

55°F

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 13°C (55°F)
Visibility 8 km
Last update 30 Jun 07:35 PM PDT
Extended Forecast for

Half Moon Bay CA

  • Tonight

    Tonight: Patchy dense fog after midnight. Otherwise, mostly cloudy, with a low around 11. Southwest wind 3 to 8 km/h.

    Low: 11 °C

    Mostly Cloudy
    then Patchy
    Dense Fog

  • Tuesday

    Tuesday: Patchy dense fog before 7am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 17. South southwest wind 5 to 13 km/h.

    High: 17 °C

    Patchy Dense
    Fog then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of drizzle. Patchy fog before 11pm, then patchy fog after 2am. Otherwise, increasing clouds, with a low around 11. Calm wind.

    Low: 11 °C

    Slight Chance
    Drizzle and
    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 17. Light southwest wind becoming west 9 to 14 km/h in the morning.

    High: 17 °C

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 10. West wind 10 to 14 km/h.

    Low: 10 °C

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 16.

    High: 16 °C

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 11.

    Low: 11 °C

    Mostly Cloudy

  • Independence Day

    Independence Day: Mostly cloudy, with a high near 15.

    High: 15 °C

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 10.

    Low: 10 °C

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy dense fog after midnight. Otherwise, mostly cloudy, with a low around 11. Southwest wind 3 to 8 km/h.
Tuesday
Patchy dense fog before 7am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 17. South southwest wind 5 to 13 km/h.
Tuesday Night
A slight chance of drizzle. Patchy fog before 11pm, then patchy fog after 2am. Otherwise, increasing clouds, with a low around 11. Calm wind.
Wednesday
Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 17. Light southwest wind becoming west 9 to 14 km/h in the morning.
Wednesday Night
Mostly cloudy, with a low around 10. West wind 10 to 14 km/h.
Thursday
Partly sunny, with a high near 16.
Thursday Night
Mostly cloudy, with a low around 11.
Independence Day
Mostly cloudy, with a high near 15.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
Partly sunny, with a high near 17.
Saturday Night
Mostly cloudy, with a low around 10.
Sunday
Partly sunny, with a high near 16.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
Mostly cloudy, with a high near 16.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Half Moon Bay CA
 37.48°N 122.42°W (Elev. 397 m)
Last Update:
2:47 pm PDT Jun 30, 2025
Forecast Valid:
7pm PDT Jun 30, 2025-6pm PDT Jul 7, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation