Pismo Dunes Weather Forecast

    • 60
    • 67

    Patchy Fog

    • 59
    • 68

    Partly Sunny

    • 59
    • 66

    Partly Sunny

    • 59
    • 66

    Partly Sunny

    • 58
    • 65

    Partly Sunny

    • 57
    • 62

    Mostly Sunny

Today 22 Sep San Luis Obispo County Beaches

Low Clouds and fog in the morning then sunny. Highs from the mid 60s to around 70 at the Beaches to the mid 70s inland. Northwest Winds 15 to 25 Mph in the afternoon.

Tonight 22 Sep San Luis Obispo County Beaches

Low Clouds and fog developing. Lows in the mid 50s to around 60. Northwest Winds around 15 Mph in the evening.

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Pismo Dunes Temperature Statistics

September Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (13 miles)

  • Lowest 7 September, 2026

    49.6 °F

  • Average September

    69.2 °F

  • Highest 9 September, 2026

    107.7 °F

Climate (2021–2026)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (13 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    61.1 °F

  • Average High 2021–2026

    73.3 °F
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