São Pedro
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São Pedro Weather in September

September in São Pedro averages 27°C (81°F) during the day and 25°C (77°F) at night. It is the wettest month of the year, with 38 mm (1.5 in) of rainfall on average, so waterproof gear is a must.

Rainfall in São Pedro in September

As the month with the highest rainfall, make sure to have an umbrella to manage the showers. Climate statistics over the past 30 years suggest around 5 days of rain, with 38 mm (1.5 in) average for the month. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.

Temperature in São Pedro in September

The temperature in São Pedro in September is excellent. Daytime highs reach 27°C (81°F), with nights dropping to 25°C (77°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about. It's the warmest month of the year on average, so summer clothing is the way to go.

Sunshine in São Pedro in September

The month enjoys around 230 hours of sunshine, creating mostly sunny days with good weather conditions.

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 planning additional trips, our weather planner can help you find destinations that match your weather preferences.

São Pedro Temperature in September

Min Temperature
25°C (77°F)
Max Temperature
27°C (81°F)
Water Temperature
26°C (79°F) *
Chance of Rain
16%
Precipitation
38 mm (1.5 in)
Rainy days
5 days
Humidity
77% *
Sunshine
230 hours *
Percentage Sunshine
*
* Data from: Mindelo, Cape Verde (9 KM, 5 Miles).

São Pedro Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in São Pedro - and find the best time to visit.

Daily Historical Temperatures

32-year average (1988-2025)

Based on our historical records, temperatures in São Pedro typically stay consistent throughout September, with daily highs averaging around 27°C (81°F). Nights are warm, with lows around 26°C (79°F).

Average temperatures in September

Historical weather records for São Pedro in September

Browse day-by-day weather records for São Pedro spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

São Pedro historical weather extremes in September

The extremes listed below come from historical weather data collected in São Pedro from 2006 through 2026.

  • On September 29, 2026, temperatures climbed to 36°C (97°F), marking the warmest September day on record.
  • The coldest September day was on September 1, 2007, with a maximum of 25°C (77°F).
  • São Pedro registered its coldest September night on September 27, 2022, 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 →

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 São Pedro 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. Pack a light rain jacket or compact umbrella for occasional showers. 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in São Pedro in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    10/10
  • Cycling
    8/10
  • Walking
    8/10
  • Barbeque
    10/10
  • Camping
    10/10
  • Outdoor sports
    8/10

São Pedro 3-Day Forecast

More climate data for São Pedro

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.