San Juan Weather Forecast

    • 75
    • 85

    Rain Showers

    • 75
    • 85

    Mostly Sunny

    • 76
    • 85

    Rain Showers

    • 76
    • 86

    Rain Showers

    • 76
    • 85

    Partly Sunny

    • 76
    • 86

    Partly Sunny

Today 8 Dec San Juan and Vicinity

Sunny with isolated Showers in the Morning, then variably cloudy with scattered Showers in the afternoon. Highs around 89. Temperature falling in the afternoon. Southeast Winds 10 to 15 Mph. Chance of rain 40 percent.

Tonight 8 Dec San Juan and Vicinity

Clear. Isolated Showers after midnight. Lows around 81. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Temperature Statistics

December Temperature

San Juan Fernando Luis Ribas Dominicci (0.6 miles)

  • Lowest 1 December, 2025

    75.2 °F

  • Average December

    81.9 °F

  • Highest 3 December, 2025

    86 °F

Climate (2020–Present)

San Juan Fernando Luis Ribas Dominicci (0.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    77.7 °F

  • Average 2020–2025

    82.5 °F

  • Average High 2020–2025

    85.2 °F
Get WillyWeather+ to remove ads