Boqueron Weather in September
During September, Boqueron experiences very high daytime temperatures of 30°C (86°F) and cooler nights around 26°C (79°F). As the wettest month of the year, expect frequent rainfall.
Rainfall in Boqueron in September
Expect frequent showers this month, so make sure to have an umbrella to keep yourself dry. You can expect rain on around 16 days based on historical patterns, with 110 mm (4.3 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 Boqueron in September
Temperatures in Boqueron in September top out at 30°C (86°F) and drop to 26°C (79°F) overnight. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With lows of 26°C (79°F), it stays warm throughout the night. A cold shower before going to sleep is one of the easiest ways to cool down before bed.September in Boqueron 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.
Boqueron Temperature in September
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Boqueron Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Boqueron - and find the best time to visit.
Daily Historical Temperatures
48-year average (1977-2025)
Based on our historical records, temperatures in Boqueron typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Historical weather records for Boqueron in September
Browse day-by-day weather records for Boqueron spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Boqueron historical weather extremes in September
The extremes listed below come from historical weather data collected in Boqueron from 1999 through 2025.
- Boqueron recorded its highest September temperature of 35°C (95°F) on September 29, 2013.
- On September 18, 2004, Boqueron saw its coldest September day with temperatures maxing out at 26°C (79°F).
- Boqueron registered its coldest September night on September 30, 2014, with temperatures dropping to 20°C (68°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 Boqueron 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. Prepare for significant rainfall with proper waterproof clothing and shoes.
What To Do in Boqueron in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Boqueron 3-Day Forecast
See the full Boqueron 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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