San Juan Weather Forecast

    • 79
    • 86

    Rain Showers

    • 78
    • 86

    Rain Showers

    • 79
    • 86

    Mostly Sunny

    • 78
    • 86

    Rain Showers

    • 77
    • 84

    Rain Showers

    • 77
    • 85

    Rain Showers

Today 4 Dec San Juan and Vicinity

Sunny this Morning, then partly cloudy with isolated Showers this afternoon. Highs around 87. Temperature falling this afternoon. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 4 Dec San Juan and Vicinity

Partly cloudy in the Evening, then becoming variably cloudy. Scattered Showers. Lows around 80. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Temperature Statistics

December Temperature

San Juan Fernando Luis Ribas Dominicci (0.6 miles)

  • Lowest 1 December, 2023

    80.6 °F

  • Average December

    83.1 °F

  • Highest 1 December, 2023

    84.2 °F

Climate (2018–Present)

San Juan Fernando Luis Ribas Dominicci (0.6 miles)

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  • Average Low 2018–2023

    77.6 °F

  • Average 2018–2023

    82.4 °F

  • Average High 2018–2023

    85.1 °F
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