Guadalupe-Nipomo Dunes National Wildlife Refuge Weather Forecast

    • 55
    • 62

    Increasing Clouds

    • 54
    • 63

    Partly Sunny

    • 55
    • 63

    Patchy Fog

    • 57
    • 64

    Patchy Fog

    • 58
    • 68

    Patchy Fog

    • 57
    • 67

    Patchy Fog

Today 26 Aug San Luis Obispo County Beaches

Low Clouds and fog in the morning then sunny. Highs from the lower 60s at the Beaches to the lower 70s inland.

Tonight 26 Aug San Luis Obispo County Beaches

Low Clouds and fog developing. Lows in the mid 50s.

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Guadalupe-Nipomo Dunes National Wildlife Refuge Temperature Statistics

August Temperature

Santa Maria Public Airport/Capt G Allan Hancock Field (11.8 miles)

  • Lowest 4 August, 2025

    48.7 °F

  • Average August

    61.8 °F

  • Highest 21 August, 2025

    89.7 °F

Climate (2020–Present)

Santa Maria Public Airport/Capt G Allan Hancock Field (11.8 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    56.6 °F

  • Average High 2020–2025

    68.9 °F
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