Porto Novo Weather in September
September in Porto Novo brings high temperatures, with highs of 26°C (79°F) and nights dropping to 24°C (75°F). It's the rainiest month of the year, so come prepared with waterproof gear.
Rainfall in Porto Novo in September
With the most rainfall occurring this month, it's practical to keep an umbrella handy for sudden downpours. Climate statistics over the past 30 years suggest around 5 days of rain, with 46 mm (1.8 in) average for the month. Although rain is not especially frequent, individual showers can still be quite heavy.
Temperature in Porto Novo in September
September tends to be one of the perfect months in Porto Novo, with 26°C (79°F) in the afternoon and 24°C (75°F) overnight. This kind of day-to-night contrast is typical for this time of year. With lows around 24°C (75°F), the nights are warm enough that a sheet is usually all you need for bedding. On average, it is the warmest month of the year.
Sunshine in Porto Novo in September
With approximately 230 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.
Average water temperature in September
The water temperature is 26°C (79°F), which most people find very comfortable. A good month for swimming and water sports.If you're interested in exploring other destinations, our weather planner can help you discover additional travel options worldwide.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Cape Verde, check out our Porto Novo's climate page.
Porto Novo Temperature in September
Min Temperature
24°C (75°F)
Max Temperature
26°C (79°F)
Water Temperature
26°C (79°F) *
Chance of Rain
15%
Precipitation
46 mm (1.8 in)
Rainy days
5 days
Humidity
77% *
Sunshine
230 hours *
Percentage Sunshine
*
Daily Historical Temperatures
32-year average (1988-2025)
Based on our historical records, temperatures in Porto Novo typically stay consistent throughout September, with daily highs averaging around 26°C (79°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures 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
Based on weather observations in Porto Novo between 2006 and 2025, these are the recorded extremes during September.
- On September 19, 2025, temperatures climbed to 34°C (93°F), marking the warmest September day on record.
- The coldest September day was on September 1, 2007, with a maximum of 24°C (75°F).
- Porto Novo registered its coldest September night on September 28, 2007, with temperatures dropping to 23°C (73°F).
Best Places in Cape Verde in September
Find out more about the weather in Cape Verde and which places have the best travel conditions in this month. See all of Cape Verde in September →
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What to Wear in Porto Novo in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. Expect water temperatures of around 26°C (79°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.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 Cape Verde, check out our Porto Novo's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Porto Novo climate overview or explore weather in Cape Verde.
