Rio Piedras Weather Forecast

    • 80
    • 89

    Rain Showers

    • 77
    • 90

    Rain Showers

    • 78
    • 89

    Rain Showers

    • 77
    • 90

    Rain Showers

    • 77
    • 91

    Rain Showers

    • 78
    • 90

    Rain Showers

Today 15 Sep San Juan and Vicinity

Mostly cloudy with isolated Thunderstorms. Scattered Showers late this Morning, then numerous Showers this afternoon. Highs around 92. East Winds 15 to 20 Mph. Chance of rain 70 percent.

Tonight 15 Sep San Juan and Vicinity

Isolated Thunderstorms in the evening. Variably cloudy with scattered Showers. Lows around 82. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rio Piedras Temperature Statistics

September Temperature

San Juan, Luis Munoz Marin International Airport (4.3 miles)

  • Lowest 8 September, 2025

    75.9 °F

  • Average September

    83.2 °F

  • Highest 10 September, 2025

    93 °F

Climate (2020–Present)

San Juan, Luis Munoz Marin International Airport (4.3 miles)

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  • Average Low 2020–2025

    76.9 °F

  • Average 2020–2025

    81.9 °F

  • Average High 2020–2025

    87.5 °F
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