Oceana Weather Forecast

    • 71
    • 83

    Chance Rain Showers

    • 72
    • 85

    Chance Rain Showers

    • 70
    • 85

    Partly Sunny

    • 70
    • 85

    Partly Sunny

    • 70
    • 86

    Partly Sunny

    • 69
    • 84

    Mostly Sunny

Today 5 Sep San Diego County Coastal Areas

Mostly sunny this Morning, then partly cloudy with a slight chance of Showers this afternoon. Highs 77 to 82 near the coast to 83 to 87 inland. Light Winds becoming west 10 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 5 Sep San Diego County Coastal Areas

Partly cloudy in the Evening, then cloudy with a slight chance of Showers overnight. Lows around 70. Areas of Winds west to 10 Mph in the evening becoming light. Chance of measurable precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Oceana Temperature Statistics

September Temperature

Oceanside, Oceanside Municipal Airport (1.2 miles)

  • Lowest 3 September, 2026

    57 °F

  • Average September

    68.5 °F

  • Highest 1 September, 2026

    79.6 °F

Climate (2021–2026)

Oceanside, Oceanside Municipal Airport (1.2 miles)

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  • Average Low 2021–2026

    53 °F

  • Average 2021–2026

    62.7 °F

  • Average High 2021–2026

    72.3 °F
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