Carolina Weather Forecast

    • 77
    • 90

    Rain Showers

    • 77
    • 89

    Rain Showers

    • 77
    • 90

    Rain Showers

    • 77
    • 91

    Rain Showers

    • 77
    • 90

    Rain Showers

    • 77
    • 89

    Rain Showers

Today 16 Sep San Juan and Vicinity

Variably cloudy in the Morning, then becoming mostly cloudy. Scattered Showers. Isolated Thunderstorms in the afternoon. Highs around 92. Temperature falling in the afternoon. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 16 Sep San Juan and Vicinity

Variably cloudy in the Evening, then becoming mostly cloudy. Scattered Showers with isolated Thunderstorms. Lows around 82. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Carolina Temperature Statistics

September Temperature

San Juan, Luis Munoz Marin International Airport (5 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 (5 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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