See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:17
Sunrise
18:13
Sunset
Moon
Waxing Gibbous
17:38
Moonrise
05:08
Moonset
Daily Forecast
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Air Quality Data Available
Upgrade to access real-time air quality data for Cayey.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Cayey.
View stargazing scoreWeather in Cayey today, September 25, 2026
Plan for bright conditions in Cayey on September 25, 2026, though cloud cover thickens for a spell near 14:00. The day as a whole still leans toward sunshine. The morning looks comparatively open, with cloud near 14% around 11:00. Early outdoor plans have a better chance of staying dry and bright.
The day peaks near 29°C and cools toward 22°C. Moisture in the air spans 58%-95%, with the highest values around 05:00. Expect gentle winds, highest near 11:00 at 3.9 km/h.
Expect a more open afternoon, with limited cloud around 22% by 14:00. Residual damp risk should be lower than earlier. Visibility stays near 16.1 km. Sunrise is at 06:17 and sunset at 18:13, giving 11 hours 55 minutes of sunlight today.
Overall, Cayey on September 25, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 29°C.
Frequently asked questions about weather in Cayey
How warm does it get in Cayey?
The warmest month in Cayey is August, with average high temperatures of 29°C. The average temperature during this period is around 27°C.
How cold does it get in Cayey?
The coldest month in Cayey 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 Cayey?
The wettest month in Cayey is September, with an average of 175mm of precipitation.
What is the driest time of year in Cayey?
The driest month in Cayey is January, with an average of 36mm of precipitation.
