Pismo Beach Weather Forecast

    • 56
    • 70

    Increasing Clouds

    • 56
    • 72

    Mostly Cloudy

    • 53
    • 73

    Partly Sunny

    • 54
    • 65

    Partly Sunny

    • 57
    • 68

    Mostly Sunny

    • 59
    • 76

    Mostly Sunny

    • 58
    • 75

    Mostly Sunny

Today 24 Sep San Luis Obispo County Beaches

Partly cloudy in the morning then sunny. Highs from the upper 60s at the Beaches to the upper 70s inland.

Tonight 24 Sep San Luis Obispo County Beaches

Cloudy. Patchy fog after midnight. Lows in the upper 40s and 50s.

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Pismo Beach Temperature Statistics

September Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (6.2 miles)

  • Lowest 7 September, 2026

    49.6 °F

  • Average September

    68.8 °F

  • Highest 9 September, 2026

    107.7 °F

Climate (2021–2026)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (6.2 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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