Oceana Weather Forecast

    • 69
    • 87

    Increasing Clouds

    • 68
    • 84

    Mostly Cloudy

    • 63
    • 79

    Partly Sunny

    • 70
    • 84

    Mostly Sunny

    • 70
    • 88

    Mostly Sunny

    • 69
    • 87

    Mostly Sunny

    • 69
    • 87

    Mostly Sunny

Today 26 Sep San Diego County Coastal Areas

Partly cloudy in the morning. Becoming mostly sunny. Highs 80 to 85 near the coast to 90 inland.

Tonight 26 Sep San Diego County Coastal Areas

Mostly cloudy. Lows 67 to 71. Light Winds.

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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

    56.6 °F

  • Average September

    73.7 °F

  • Highest 7 September, 2026

    100.7 °F

Climate (2021–2026)

Oceanside, Oceanside Municipal Airport (1.2 miles)

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  • Average Low 2021–2026

    53 °F

  • Average 2021–2026

    62.8 °F

  • Average High 2021–2026

    72.3 °F
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