San Juan Weather Forecast

    • 77
    • 84

    Rain Showers

    • 76
    • 82

    Rain Showers

    • 76
    • 83

    Rain Showers

    • 77
    • 84

    Rain Showers

    • 78
    • 85

    Rain Showers

    • 77
    • 83

    Rain Showers

    • 76
    • 83

    Rain Showers

Today 15 May San Juan and Vicinity

Mostly cloudy with isolated Thunderstorms. Scattered Showers late this Morning, then numerous Showers this afternoon. Highs around 87. East Winds 10 to 15 Mph. Chance of rain 60 percent.

Tonight 15 May San Juan and Vicinity

Mostly cloudy in the Evening, then becoming variably cloudy. Isolated Thunderstorms. Numerous Showers, mainly in the evening. Lows around 78. East Winds 5 to 10 Mph. Chance of rain 60 percent.

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San Juan Temperature Statistics

May Temperature

San Juan Fernando Luis Ribas Dominicci (0.6 miles)

  • Lowest 1 May, 2025

    75.2 °F

  • Average May

    81.5 °F

  • Highest 9 May, 2025

    87.8 °F

Climate (2020–Present)

San Juan Fernando Luis Ribas Dominicci (0.6 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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