Alta Mesa Weather Forecast

    • 63
    • 78

    Mostly Sunny

    • 64
    • 76

    Partly Sunny

    • 64
    • 77

    Slight Chance Rain Showers

    • 65
    • 78

    Partly Sunny

    • 66
    • 79

    Mostly Cloudy

    • 66
    • 80

    Partly Sunny

    • 65
    • 79

    Mostly Sunny

Today 4 Sep Santa Barbara County Southeastern Coast

Sunny. Highs in the upper 60s and 70s.

Tonight 4 Sep Santa Barbara County Southeastern Coast

Mostly clear. Lows around 60.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alta Mesa Temperature Statistics

September Temperature

Santa Barbara, Santa Barbara Municipal Airport (6.8 miles)

  • Lowest 2 September, 2026

    54 °F

  • Average September

    67.2 °F

  • Highest 2 September, 2026

    79 °F

Climate (2021–2026)

Santa Barbara, Santa Barbara Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    51.5 °F

  • Average 2021–2026

    60.7 °F

  • Average High 2021–2026

    69.9 °F
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