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Ponce Weather in September
Ponce in September sees high temperatures, with highs around 30°C (86°F) and overnight lows of 25°C (77°F). Rainfall is at its peak this month, around 142 mm (5.6 in) on average, so waterproofs are essential.
Rainfall in Ponce in September
Being the wettest month, having an umbrella on standby can help you avoid getting caught in the rain. Historically, approximately 18 days this month are expected to have rain, averaging 142 mm (5.6 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Ponce in September
In September, expect high temperatures in Ponce, with highs of 30°C (86°F) and lows of 25°C (77°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.September in Ponce 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.
Ponce Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Chance of Rain
59%
Precipitation
142 mm (5.6 in)
Rainy days
18 days
Ponce Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ponce - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ponce 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 Ponce in September
Browse day-by-day weather records for Ponce spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ponce historical weather extremes in September
The extremes listed below come from historical weather data collected in Ponce from 1976 through 2026.
- The hottest September day on record in Ponce reached 38°C (100°F) (September 6, 1997).
- The coldest September day was on September 22, 2008, with a maximum of 24°C (75°F).
- The coldest night in September in Ponce was on September 22, 1978, with a minimum of 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
pleasant
tolerable
unpleasant
poor
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 Ponce 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 Ponce in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Ponce 3-Day Forecast
More climate data for Ponce
See the full Ponce 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) Bucket list
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