Guadalupe-Nipomo Dunes National Wildlife Refuge Weather Forecast

    • 57
    • 75

    Increasing Clouds

    • 58
    • 68

    Patchy Fog

    • 57
    • 65

    Patchy Fog

    • 58
    • 66

    Breezy

    • 57
    • 66

    Partly Sunny

    • 56
    • 63

    Partly Sunny

Today 10 Sep San Luis Obispo County Beaches

Sunny. Highs from the mid 70s to lower 80s at the Beaches to 90 to 100 inland. Northwest Winds 15 to 25 Mph in the afternoon.

Tonight 10 Sep San Luis Obispo County Beaches

Partly cloudy in the evening then Areas of low Clouds and fog. Lows in the mid 50s to lower 60s. Northwest Winds around 15 Mph in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Guadalupe-Nipomo Dunes National Wildlife Refuge Temperature Statistics

September Temperature

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

  • Lowest 1 September, 2026

    52.6 °F

  • Average September

    66.9 °F

  • Highest 8 September, 2026

    84.9 °F

Climate (2021–2026)

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    69.5 °F
Get WillyWeather+ to remove ads