Guaynabo Weather Forecast

    • 75
    • 88

    Rain Showers

    • 75
    • 88

    Rain Showers

    • 75
    • 88

    Rain Showers

    • 76
    • 89

    Rain Showers

    • 75
    • 88

    Rain Showers

    • 75
    • 88

    Rain Showers

Today 23 May San Juan and Vicinity

Mostly Cloudy, then becoming variably cloudy late this Morning, then becoming partly Cloudy, then becoming mostly cloudy late. Scattered Showers. Isolated Thunderstorms this afternoon. Highs around 90. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 23 May San Juan and Vicinity

Partly cloudy with isolated Showers. Lows around 82. East Winds 10 to 15 Mph. Chance of rain 20 percent.

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Guaynabo Temperature Statistics

May Temperature

San Juan Fernando Luis Ribas Dominicci (6.8 miles)

  • Lowest 1 May, 2025

    75.2 °F

  • Average May

    81.6 °F

  • Highest 9 May, 2025

    87.8 °F

Climate (2020–Present)

San Juan Fernando Luis Ribas Dominicci (6.8 miles)

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  • Average Low 2020–2025

    77.7 °F

  • Average 2020–2025

    82.5 °F

  • Average High 2020–2025

    85.2 °F
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