Tri-City Weather Forecast

    • 47
    • 70

    Mostly Sunny

    • 49
    • 67

    Mostly Sunny

    • 49
    • 67

    Mostly Sunny

    • 53
    • 70

    Mostly Sunny

    • 55
    • 74

    Mostly Sunny

    • 56
    • 76

    Mostly Sunny

    • 55
    • 74

    Mostly Sunny

Today 4 Dec San Diego County Coastal Areas

Mostly sunny. Highs 69 to 72. Areas of Winds east 10 Mph becoming northwest in the afternoon.

Tonight 4 Dec San Diego County Coastal Areas

Mostly clear. Lows 44 to 48. Areas of Winds northeast 10 Mph this evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Tri-City Temperature Statistics

December Temperature

Oceanside, Oceanside Municipal Airport (3.7 miles)

  • Lowest 2 December, 2025

    41 °F

  • Average December

    56.8 °F

  • Highest 2 December, 2025

    66 °F

Climate (2020–Present)

Oceanside, Oceanside Municipal Airport (3.7 miles)

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

  • Average Low 2020–2025

    52.7 °F

  • Average 2020–2025

    62.3 °F

  • Average High 2020–2025

    71.6 °F
Get WillyWeather+ to remove ads