Guaynabo Weather Forecast

    • 70
    • 85

    Rain Showers

    • 70
    • 86

    Rain Showers

    • 69
    • 84

    Rain Showers

    • 70
    • 83

    Rain Showers

    • 70
    • 84

    Rain Showers

    • 70
    • 85

    Rain Showers

Today 3 Jan San Juan and Vicinity

Partly cloudy with isolated Showers. Highs around 86. Temperature falling this afternoon. East Winds 10 to 15 Mph. Chance of rain 20 percent.

Tonight 3 Jan San Juan and Vicinity

Partly cloudy with isolated Showers. Lows around 81. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Guaynabo Temperature Statistics

January Temperature

San Juan Fernando Luis Ribas Dominicci (6.8 miles)

  • Lowest 1 January, 2026

    75.2 °F

  • Average January

    80.3 °F

  • Highest 1 January, 2026

    82.4 °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

    85.2 °F
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