Cayucos State Beach Weather Forecast

    • 54
    • 61

    Mostly Sunny

    • 58
    • 65

    Increasing Clouds

    • 58
    • 66

    Mostly Cloudy

    • 56
    • 62

    Partly Sunny

    • 54
    • 59

    Patchy Fog

    • 53
    • 59

    Patchy Fog

    • 52
    • 58

    Patchy Fog

Today 19 Aug San Luis Obispo County Beaches

Sunny. Highs from the lower to mid 60s at the Beaches to the lower to mid 70s inland. West Winds 15 to 25 Mph in the afternoon.

Tonight 19 Aug San Luis Obispo County Beaches

Mostly clear except for patchy low Clouds and fog after midnight. Fog locally dense with visibility one quarter mile or less. Lows in the upper 40s to mid 50s. West Winds 15 to 25 Mph in the evening.

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Cayucos State Beach Temperature Statistics

August Temperature

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

  • Lowest 4 August, 2025

    48.7 °F

  • Average August

    65.4 °F

  • Highest 6 August, 2025

    84.7 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    49.9 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    72.9 °F
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