Rio Del Mar Weather Forecast

    • 56
    • 72

    Becoming Sunny

    • 57
    • 75

    Partly Sunny

    • 59
    • 76

    Mostly Sunny

    • 59
    • 77

    Mostly Sunny

    • 57
    • 77

    Mostly Sunny

    • 57
    • 73

    Partly Sunny

Today 13 Sep Northern Monterey Bay

Mostly cloudy in the morning then becoming sunny. Areas of fog in the morning. A slight chance of rain in the morning. Highs in the mid 70s. Southeast Winds around 5 Mph becoming southwest in the afternoon.

Tonight 13 Sep Northern Monterey Bay

Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 50s. North Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Rio Del Mar Temperature Statistics

September Temperature

Watsonville, Watsonville Municipal Airport (5.6 miles)

  • Lowest 7 September, 2025

    54 °F

  • Average September

    63.9 °F

  • Highest 1 September, 2025

    84.9 °F

Climate (2020–Present)

Watsonville, Watsonville Municipal Airport (5.6 miles)

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

  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    56.6 °F

  • Average High 2020–2025

    67.9 °F
Get WillyWeather+ to remove ads