Pismo Beach Weather Forecast

    • 51
    • 70

    Becoming Sunny

    • 53
    • 65

    Partly Sunny

    • 56
    • 66

    Cloudy

    • 55
    • 62

    Chance Rain Showers

    • 54
    • 62

    Chance Rain Showers

    • 55
    • 61

    Rain Showers

Today 18 Dec San Luis Obispo County Beaches

Partly cloudy. Highs in the mid 60s to mid 70s. North Winds 15 to 25 Mph.

Tonight 18 Dec San Luis Obispo County Beaches

Mostly clear in the evening then partly cloudy. Lows around 50. North Winds around 15 Mph in the evening.

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Pismo Beach Temperature Statistics

December Temperature

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

  • Lowest 4 December, 2025

    37 °F

  • Average December

    56.8 °F

  • Highest 10 December, 2025

    82 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    50 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    72.8 °F
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