Oceana Weather Forecast

    • 67
    • 81

    Partly Sunny

    • 66
    • 79

    Partly Sunny

    • 66
    • 79

    Partly Sunny

    • 65
    • 77

    Chance Rain Showers

    • 67
    • 79

    Partly Sunny

    • 66
    • 79

    Partly Sunny

    • 65
    • 79

    Partly Sunny

Today 18 Sep San Diego County Coastal Areas

Partly cloudy with a chance of Showers. A slight chance of Thunderstorms this Morning, then a chance of Thunderstorms this afternoon. Highs 76 to 81 near the coast to 82 to 85 inland. Areas of Winds west to 10 Mph. Chance of measurable precipitation 50 percent.

Tonight 18 Sep San Diego County Coastal Areas

Partly cloudy. Lows 65 to 69. Areas of Winds west to 10 Mph this evening becoming light.

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Oceana Temperature Statistics

September Temperature

Oceanside, Oceanside Municipal Airport (1.2 miles)

  • Lowest 13 September, 2025

    57.9 °F

  • Average September

    70 °F

  • Highest 2 September, 2025

    82 °F

Climate (2020–Present)

Oceanside, Oceanside Municipal Airport (1.2 miles)

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  • Average Low 2020–2025

    52.7 °F

  • Average 2020–2025

    62.3 °F

  • Average High 2020–2025

    71.8 °F
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