San Ysidro Weather Forecast

    • 42
    • 59

    Decreasing Clouds

    • 44
    • 61

    Partly Sunny

    • 47
    • 64

    Partly Sunny

    • 49
    • 67

    Partly Sunny

    • 49
    • 68

    Mostly Cloudy

    • 49
    • 64

    Chance Rain

Today 30 Jan San Diego County Coastal Areas

Partly cloudy with a slight chance of Showers this Morning, then mostly sunny this afternoon. Highs 59 to 63. Light Winds becoming west 10 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 30 Jan San Diego County Coastal Areas

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Colder. Lows 34 to 43. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Ysidro Temperature Statistics

January Temperature

San Diego, Brown Field Municipal Airport (3.1 miles)

  • Lowest 16 January, 2025

    35.7 °F

  • Average January

    55.2 °F

  • Highest 23 January, 2025

    85.6 °F

Climate (2020–Present)

San Diego, Brown Field Municipal Airport (3.1 miles)

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  • Average Low 2020–2025

    54 °F

  • Average 2020–2025

    63 °F

  • Average High 2020–2025

    73.4 °F
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