Yabucoa Weather in September
September in Yabucoa averages 30°C (86°F) during the day and 26°C (79°F) at night. It is the wettest month of the year, with 192 mm (7.6 in) of rainfall on average, so waterproof gear is a must.
Rainfall in Yabucoa in September
This month experiences the most intense rain of the year, with heavy showers. Be prepared with a poncho to stay dry. Climate statistics over the past 30 years suggest around 18 days of rain, with 192 mm (7.6 in) average for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Yabucoa in September
In September, Yabucoa gets high temperatures, with highs of 30°C (86°F). Nights cool to around 26°C (79°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights stay warm at around 26°C (79°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Yabucoa in September
The month enjoys around 236 hours of sunshine, creating mostly sunny days with good weather conditions.September in Yabucoa can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Yabucoa Temperature in September
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Yabucoa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Yabucoa - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Yabucoa typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Yabucoa in September
Browse day-by-day weather records for Yabucoa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Yabucoa historical weather extremes in September
The extremes listed below come from historical weather data collected in Yabucoa from 1976 through 2025.
- The warmest day in September was on September 28, 2025, with a maximum of 34°C (93°F).
- The coldest September day was on September 22, 2008, with a maximum of 25°C (77°F).
- Yabucoa registered its coldest September night on September 28, 1981, with temperatures dropping to 21°C (70°F).
Best Places in Puerto Rico in September
Find out more about the weather in Puerto Rico and which places have the best travel conditions in this month. See all of Puerto Rico in September →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Yabucoa in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Yabucoa in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming8/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Yabucoa 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Yabucoa climate overview or explore weather in Puerto Rico.
Popular in September
Where to go in September - average daytime high across popular destinations.
San Juan
31°C (88°F) Fajardo30°C (86°F) Luquillo30°C (86°F) Aguada
30°C (86°F) Rincon
30°C (86°F) Rio Grande31°C (88°F) Culebra30°C (86°F) Vieques30°C (86°F) 
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