Guaynabo Weather Forecast

    • 72
    • 85

    Rain Showers

    • 71
    • 84

    Rain Showers

    • 71
    • 85

    Mostly Sunny

    • 71
    • 85

    Rain Showers

    • 72
    • 86

    Rain Showers

    • 71
    • 86

    Rain Showers

Today 17 Apr San Juan and Vicinity

Mostly Cloudy, then becoming variably cloudy late this Morning, then becoming cloudy. Numerous Showers this Morning, then Showers and scattered Thunderstorms this afternoon. Highs around 87. East Winds 10 to 15 Mph. Chance of rain 90 percent.

Tonight 17 Apr San Juan and Vicinity

Variably cloudy with scattered Showers. Lows around 80. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Guaynabo Temperature Statistics

April Temperature

San Juan Fernando Luis Ribas Dominicci (6.8 miles)

  • Lowest 15 April, 2026

    73.4 °F

  • Average April

    82.1 °F

  • Highest 6 April, 2026

    89.6 °F

Climate (2021–Present)

San Juan Fernando Luis Ribas Dominicci (6.8 miles)

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  • Average Low 2021–2026

    77.7 °F

  • Average 2021–2026

    82.5 °F

  • Average High 2021–2026

    85.3 °F
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