Downtown San Jose Weather Forecast

    • 37
    • 57

    Becoming Sunny

    • 36
    • 60

    Partly Sunny

    • 39
    • 62

    Partly Sunny

    • 41
    • 63

    Mostly Sunny

    • 43
    • 67

    Mostly Sunny

    • 45
    • 68

    Mostly Sunny

    • 45
    • 70

    Mostly Sunny

Today 9 Jan Santa Clara Valley Including San Jose

Partly cloudy late in the morning then becoming sunny. Highs in the upper 50s. Northwest Winds around 5 Mph.

Tonight 9 Jan Santa Clara Valley Including San Jose

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 30s. East Winds around 5 Mph.

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Downtown San Jose Temperature Statistics

January Temperature

San Jose, San Jose International Airport (2.5 miles)

  • Lowest 7 January, 2026

    45 °F

  • Average January

    55.5 °F

  • Highest 2 January, 2026

    63 °F

Climate (2021–Present)

San Jose, San Jose International Airport (2.5 miles)

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  • Average Low 2021–2026

    52 °F

  • Average 2021–2026

    61.6 °F

  • Average High 2021–2026

    72.4 °F
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