Guaynabo Weather Forecast

    • 72
    • 85

    Rain Showers

    • 71
    • 86

    Rain Showers

    • 71
    • 87

    Rain Showers

    • 71
    • 85

    Rain Showers

    • 71
    • 86

    Rain Showers

    • 71
    • 85

    Rain Showers

Today 19 Apr San Juan and Vicinity

Mostly Cloudy, then becoming variably cloudy late this Morning, then becoming mostly cloudy. Scattered Showers with isolated Thunderstorms. Highs around 87. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 19 Apr San Juan and Vicinity

Mostly cloudy with scattered Showers. Lows around 80. East Winds 10 to 15 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

    81.9 °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

    77.6 °F

  • Average 2021–2026

    82.5 °F

  • Average High 2021–2026

    85.3 °F
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