Cupey Weather Forecast

    • 77
    • 91

    Partly Sunny

    • 76
    • 91

    Rain Showers

    • 77
    • 91

    Rain Showers

    • 77
    • 91

    Rain Showers

    • 77
    • 91

    Rain Showers

    • 76
    • 91

    Rain Showers

Today 13 Sep San Juan and Vicinity

Partly cloudy. Scattered Showers, mainly in the morning. Highs around 93. Temperature falling in the afternoon. East Winds 15 to 20 Mph. Chance of rain 30 percent.

Tonight 13 Sep San Juan and Vicinity

Partly cloudy with isolated Showers. Lows around 83. East Winds 10 to 15 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cupey Temperature Statistics

September Temperature

San Juan, Luis Munoz Marin International Airport (7.5 miles)

  • Lowest 1 September, 2026

    75.7 °F

  • Average September

    84.7 °F

  • Highest 1 September, 2026

    91.7 °F

Climate (2021–2026)

San Juan, Luis Munoz Marin International Airport (7.5 miles)

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  • Average Low 2021–2026

    77 °F

  • Average 2021–2026

    82.2 °F

  • Average High 2021–2026

    87.8 °F
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