Oso Flaco Lake Weather Forecast

    • 57
    • 82

    Mostly Sunny

    • 56
    • 78

    Partly Sunny

    • 56
    • 75

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

    • 58
    • 77

    Mostly Sunny

    • 54
    • 78

    Sunny

Today 12 Mar San Luis Obispo County Beaches

Sunny. Highs in the mid 70s to mid 80s. North Winds 15 to 25 Mph.

Tonight 12 Mar San Luis Obispo County Beaches

Mostly clear. Lows in the mid 50s to around 60. North Winds around 15 Mph.

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Oso Flaco Lake Temperature Statistics

March Temperature

Santa Maria Public Airport/Capt G Allan Hancock Field (13 miles)

  • Lowest 7 March, 2026

    41 °F

  • Average March

    58 °F

  • Highest 8 March, 2026

    81 °F

Climate (2021–Present)

Santa Maria Public Airport/Capt G Allan Hancock Field (13 miles)

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  • Average Low 2021–2026

    48.1 °F

  • Average 2021–2026

    56.9 °F

  • Average High 2021–2026

    69 °F
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