Guaynabo Weather Forecast
- 71
- 84
Rain Showers
- 71
- 86
Rain Showers
- 73
- 86
Rain Showers
- 73
- 87
Rain Showers
- 73
- 87
Rain Showers
- 72
- 86
Rain Showers
Today 5 Apr San Juan and Vicinity
Variably cloudy early this Morning, then becoming cloudy. Numerous Showers this Morning, then Showers with isolated Thunderstorms this afternoon. Highs around 86. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.
Tonight 5 Apr San Juan and Vicinity
Mostly cloudy with numerous Showers with isolated Thunderstorms in the Evening, then mostly clear with scattered Showers after midnight. Lows around 80. Southeast Winds 10 to 15 Mph. Chance of rain 70 percent.
Guaynabo Temperature Statistics
April Temperature
San Juan Fernando Luis Ribas Dominicci (6.8 miles)
Lowest 1 April, 2026
75.2 °FAverage April
80.5 °FHighest 1 April, 2026
82.4 °F
Climate (2021–Present)
San Juan Fernando Luis Ribas Dominicci (6.8 miles)
Average Low 2021–2026
77.6 °FAverage 2021–2026
82.5 °FAverage High 2021–2026
85.2 °F