Morro Bay Weather Forecast

    • 54
    • 62

    Chance Rain Showers

    • 53
    • 60

    Chance Rain Showers

    • 57
    • 61

    Rain Showers

    • 55
    • 59

    Rain Showers

    • 52
    • 58

    Rain Showers

    • 48
    • 58

    Rain Showers

    • 47
    • 58

    Chance Rain Showers

Today 21 Dec San Luis Obispo County Beaches

Mostly cloudy with a 50 percent chance of Showers. Highs in the upper 50s to mid 60s.

Tonight 21 Dec San Luis Obispo County Beaches

Low Clouds and fog. Lows in the lower to mid 50s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Morro Bay Temperature Statistics

December Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (14.9 miles)

  • Lowest 4 December, 2025

    37 °F

  • Average December

    57.5 °F

  • Highest 10 December, 2025

    82 °F

Climate (2020–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (14.9 miles)

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

  • Average Low 2020–2025

    50 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    72.8 °F
Get WillyWeather+ to remove ads