San Simeon Bay Weather Forecast

    • 52
    • 73

    Chance Rain Showers

    • 53
    • 68

    Rain Showers Likely

    • 55
    • 67

    Chance Rain Showers

    • 56
    • 70

    Patchy Fog

    • 58
    • 72

    Patchy Fog

    • 59
    • 75

    Slight Chance Rain Showers

    • 56
    • 70

    Slight Chance Rain Showers

Today 17 Sep San Luis Obispo County Beaches

Mostly cloudy with a 20 percent chance of Showers. Highs from around 70 at the Beaches to around 80 inland. West Winds around 15 Mph in the afternoon.

Tonight 17 Sep San Luis Obispo County Beaches

Cloudy. A slight chance of Showers in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the upper 40s and 50s. Chance of precipitation 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Simeon Bay Temperature Statistics

September Temperature

Paso Robles Municipal Airport (31.1 miles)

  • Lowest 7 September, 2025

    48.9 °F

  • Average September

    69.2 °F

  • Highest 1 September, 2025

    99 °F

Climate (2020–Present)

Paso Robles Municipal Airport (31.1 miles)

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  • Average Low 2020–2025

    44.9 °F

  • Average 2020–2025

    60.5 °F

  • Average High 2020–2025

    78 °F
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