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Hourly Forecast
Daylight Hours
06:17
Sunrise
18:13
Sunset
Moon
Waxing Gibbous
17:02
Moonrise
04:15
Moonset
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View stargazing scoreWeather in Guaynabo tomorrow, September 25, 2026
Guaynabo sees a largely clear day on September 25, 2026, interrupted by cloudier skies around 14:00. Plan for bright conditions either side of that cloudier interval. The morning looks comparatively open, with cloud near 19% around 11:00. Early outdoor plans have a better chance of staying dry and bright.
Expect highs of 32°C and cooler readings close to 24°C. Moisture in the air spans 58%-98%, with the highest values around 05:00. A lighter breeze peaks around 14:00 near 4.0 km/h.
Expect a more open afternoon, with limited cloud around 27% by 14:00. Residual damp risk should be lower than earlier. Views remain open at about 16.1 km. The sun rises at 06:17 and sets at 18:12, for a total of 11 hours 55 minutes of sunlight today.
In short, September 25, 2026 looks like a fine day in Guaynabo for being outside, peaking around 32°C.
Frequently asked questions about weather in Guaynabo
How warm does it get in Guaynabo?
The warmest month in Guaynabo is September, with average high temperatures of 30°C. The average temperature during this period is around 27°C.
How cold does it get in Guaynabo?
The coldest month in Guaynabo is February, with average low temperatures of 22°C. The average temperature during this period is around 24°C.
What is the wettest time of year in Guaynabo?
The wettest month in Guaynabo is September, with an average of 202mm of precipitation.
What is the driest time of year in Guaynabo?
The driest month in Guaynabo is January, with an average of 51mm of precipitation.
