Moonstone Beach Weather Forecast

    • 56
    • 66

    Increasing Clouds

    • 53
    • 61

    Patchy Fog

    • 57
    • 63

    Patchy Fog

    • 58
    • 66

    Patchy Fog

    • 58
    • 67

    Mostly Cloudy

    • 57
    • 66

    Mostly Cloudy

    • 57
    • 66

    Mostly Cloudy

Today 15 Aug San Luis Obispo County Beaches

Cloudy in the morning then partly cloudy. Highs from the mid 60s at the Beaches to the mid 70s inland. West Winds around 15 Mph in the afternoon.

Tonight 15 Aug San Luis Obispo County Beaches

Mostly cloudy. Lows in the mid to upper 50s. West Winds around 15 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Moonstone Beach Temperature Statistics

August Temperature

Paso Robles Municipal Airport (27.3 miles)

  • Lowest 4 August, 2026

    51.7 °F

  • Average August

    76 °F

  • Highest 1 August, 2026

    105.7 °F

Climate (2021–2026)

Paso Robles Municipal Airport (27.3 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    60.8 °F

  • Average High 2021–2026

    77.8 °F
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