Cayucos State Beach Weather Forecast

    • 52
    • 64

    Sunny

    • 54
    • 64

    Sunny

    • 54
    • 62

    Partly Sunny

    • 53
    • 59

    Patchy Fog

    • 55
    • 64

    Patchy Fog

    • 57
    • 63

    Patchy Fog

    • 54
    • 62

    Mostly Sunny

Today 11 Dec San Luis Obispo County Beaches

Sunny. Highs in the upper 60s to mid 70s. Northeast Winds around 15 Mph in the morning.

Tonight 11 Dec San Luis Obispo County Beaches

Clear. Lows in the mid 40s to lower 50s. Northeast Winds around 15 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Cayucos State Beach Temperature Statistics

December Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (20.5 miles)

  • Lowest 4 December, 2025

    37 °F

  • Average December

    56.6 °F

  • Highest 9 December, 2025

    80.1 °F

Climate (2020–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (20.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    50 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    72.8 °F
Get WillyWeather+ to remove ads