Oso Flaco Lake Weather Forecast

    • 49
    • 64

    Mostly Sunny

    • 49
    • 64

    Breezy

    • 49
    • 64

    Breezy

    • 50
    • 64

    Mostly Sunny

    • 51
    • 62

    Mostly Sunny

    • 51
    • 64

    Partly Sunny

    • 51
    • 61

    Mostly Sunny

Today 15 May San Luis Obispo County Beaches

Patchy low Clouds and fog. Highs in the upper 60s. Northwest wind around 15 Mph this afternoon.

Tonight 15 May San Luis Obispo County Beaches

Mostly clear. Lows in the upper 40s. Northwest wind around 15 Mph this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Oso Flaco Lake Temperature Statistics

May Temperature

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

  • Lowest 4 May, 2026

    46.7 °F

  • Average May

    60 °F

  • Highest 11 May, 2026

    74.6 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    48.2 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    69.3 °F
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