Porto-Novo Weather in September
September in Porto-Novo typically sees daytime highs of 29°C (84°F) and nighttime lows of 24°C (75°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Porto-Novo in September
Typically, about 12 days will experience rainfall, with an average of 167 mm (6.6 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Porto-Novo in September
Daytime temperatures in Porto-Novo reach 29°C (84°F) in September, dropping to 24°C (75°F) at night. This kind of day-to-night contrast is typical for this time of year. At 24°C (75°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Porto-Novo in September
The area experiences a moderate amount of sunshine, with approximately 165 hours of sunlight expected. This means a decent mix of sun and overcast.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July, August and September typically offer the best weather for Porto-Novo.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Benin, check out our Porto-Novo's climate page.
Porto-Novo Temperature in September
Min Temperature
24°C (75°F)
Max Temperature
29°C (84°F)
Chance of Rain
39%
Precipitation
167 mm (6.6 in)
Rainy days
12 days
Humidity
85% *
Sunshine
165 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Porto-Novo typically stay consistent throughout September, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Porto-Novo in September
Browse day-by-day weather records for Porto-Novo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Porto-Novo historical weather extremes in September
Our historical data for Porto-Novo spans 2004 to 2025, revealing these weather extremes.
- Porto-Novo recorded its highest September temperature of 34°C (93°F) on September 7, 2020.
- On September 1, 2005, Porto-Novo saw its coldest September day with temperatures maxing out at 25°C (77°F).
- The lowest overnight temperature recorded in September was 20°C (68°F) (September 18, 2020).
Best Places in Benin in September
Find out more about the weather in Benin and which places have the best travel conditions in this month. See all of Benin in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Porto-Novo in September
Warm but pleasant conditions in Porto-Novo in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Porto-Novo in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Benin, check out our Porto-Novo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Porto-Novo climate overview or explore weather in Benin.
