Guadalupe-Nipomo Dunes National Wildlife Refuge Weather Forecast

    • 57
    • 65

    Partly Sunny

    • 59
    • 67

    Partly Sunny

    • 59
    • 68

    Partly Sunny

    • 58
    • 69

    Partly Sunny

    • 57
    • 66

    Partly Sunny

    • 58
    • 66

    Partly Sunny

Today 20 Jul San Luis Obispo County Beaches

Low Clouds and fog in the morning then partly cloudy. Highs from the mid 60s to around 70 at the Beaches to the mid 70s to around 80 inland. West Winds around 15 Mph in the afternoon.

Tonight 20 Jul San Luis Obispo County Beaches

Low Clouds and fog developing. Lows in the mid 50s. West Winds around 15 Mph in the evening.

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Guadalupe-Nipomo Dunes National Wildlife Refuge Temperature Statistics

July Temperature

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

  • Lowest 3 July, 2026

    51.7 °F

  • Average July

    65.4 °F

  • Highest 13 July, 2026

    86.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    69.4 °F
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