Guaynabo Weather Forecast

    • 77
    • 89

    Rain Showers

    • 77
    • 89

    Mostly Sunny

    • 78
    • 89

    Partly Sunny

    • 78
    • 89

    Partly Sunny

    • 78
    • 89

    Partly Sunny

    • 78
    • 89

    Rain Showers

    • 78
    • 88

    Rain Showers

Today 2 Jul San Juan and Vicinity

Partly cloudy with isolated Showers this Morning, then variably cloudy with scattered Showers this afternoon. Highs around 92. Temperature falling this afternoon. Southeast Winds 15 to 20 Mph. Chance of rain 50 percent.

Tonight 2 Jul 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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  • Temperature Forecast NOAA

  • Temperature Real-Time

Guaynabo Temperature Statistics

July Temperature

San Juan Fernando Luis Ribas Dominicci (6.8 miles)

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  • Average July

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Climate (2021–2026)

San Juan Fernando Luis Ribas Dominicci (6.8 miles)

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  • Average Low 2021–2026

    77.7 °F

  • Average 2021–2026

    82.6 °F

  • Average High 2021–2026

    85.3 °F
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