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
05:52
Sunrise
17:52
Sunset
Moon
Waxing Gibbous
14:17
Moonrise
01:44
Moonset
Daily Forecast
Today
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
Upgrade to access real-time air quality data for Puerto Rico Airport.
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Puerto Rico Airport.
View stargazing scoreWeather in Puerto Rico Airport today, September 21, 2026
Rain features in Puerto Rico Airport on September 21, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise.
Expect highs of 32°C and cooler readings close to 24°C. Moisture in the air spans 85%-98%, with the highest values around 19:00. Winds stay light, near 0.9 km/h by 19:00, so the day feels still more than breezy.
The second half of the day still looks unsettled, with rain probability around 74% by 17:00. Dense cloud near 72% at 17:00 keeps the feel grey. Visibility holds near 15.4 km, though it can fall to 11.5 km. The sun rises at 05:52 and sets at 17:52, for a total of 11 hours 59 minutes of sunlight today.
The practical takeaway for Puerto Rico Airport on September 21, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 32°C.
Frequently asked questions about weather in Puerto Rico Airport
How warm does it get in Puerto Rico Airport?
The warmest month in Puerto Rico Airport is February, with average high temperatures of 27°C. The average temperature during this period is around 22°C.
How cold does it get in Puerto Rico Airport?
The coldest month in Puerto Rico Airport is July, with average low temperatures of 16°C. The average temperature during this period is around 19°C.
What is the wettest time of year in Puerto Rico Airport?
The wettest month in Puerto Rico Airport is June, with an average of 261mm of precipitation.
What is the driest time of year in Puerto Rico Airport?
The driest month in Puerto Rico Airport is January, with an average of 80mm of precipitation.
