Sal weather in September

September in Sal: sweltering, a little rain, with muggy air — fine if you can take 35°C afternoons.

Updated September 2026 · climate normals from ERA5 reanalysis

Sal🇨🇻 Cabo Verde · Sahel & Cabo Verde · Island89
  1. 90Jan
  2. 89Feb
  3. 91Mar
  4. 92Apr
  5. 92May
  6. 93Jun
  7. 93Jul
  8. 91Aug
  9. 89Sep
  10. 91Oct
  11. 92Nov
  12. 90Dec

#12 of 12 months in Sal · #289 of 1413 destinations to visit in September · comfort 89/100 (tier A)

Days
30°C
Nights
25°C
Wet days
6
Sun
10.6 h
Humidity
83%
Daylight
12 h
Sal, Cabo Verde
Photo: Rob Mowe · Pexels

Traveller notes on Sal in September

Other months in Sal

Sal's forum consistently describes January as mild and dry - averaging around 22C - but genuinely windy, with a steady 25kph breeze that can gust higher and kicks up rougher seas, which is exactly why it's popular with windsurfers this time of year. Days are pleasant, but several posters warned the wind makes evenings feel cooler than the thermometer suggests, so pack a light layer for after dark. There's also an occasional Saharan dust haze that rolls through for a day or two, though it doesn't typically disrupt flights or plans.
SalWindsurfRegular · January · 1 month ago · Read more on Tripadvisor ↗
Forum posters call July technically the start of the rainy season on Sal, but say you'd be unlucky to see more than a quick, short shower - high-20sC temperatures with plenty of sun are the norm, and the season's average total rainfall across July-September is a modest 25mm. Humidity runs fairly high (80%+) even on sunny days. It's not the windiest stretch of the year, though a steady northeasterly breeze is nearly constant; most hotels sit on the sheltered south and west coasts, which take the edge off it. Overall, posters describe July as a reliably pleasant, warm and mostly dry month despite the 'rainy season' label.
Tripadvisor community · July · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Sal's card on the map.

Sal climate normals — September

Daytime high30°C / 87°F🔥 sweltering
Nighttime low25°C / 77°F
Feels like (high)35°C / 95°F
Sea temperature28°C / 83°F♨️ bath-warm
Rainfall36 mm / 1.4 in🌦 some rain
Rainy days6 days
Humidity83%💦 very humid
Dew point23°C / 74°F
Sunshine10.6 h/day
Daylight12.2 h
Wind26 km/h / 16 mph
Air quality (US AQI)58🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Sal in September

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Quietschool holidays in 2 of the markets that fill it, one of its worst months for weather(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Sal's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherSal's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

JFMAMJJASOND

What's on in Sal in September

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Nature

    Loggerhead nesting

    15 Jun – 15 Oct · usuallyTurtle nesting

    Sal holds one of the world's largest loggerhead rookeries after Boa Vista, and the females come up on the quieter east-coast beaches after dark through the summer. Go with a licensed guide; torches and quad bikes are what wreck a nest. Source ↗

What's on around the world in September →

Where is Sal?

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Sal in September — FAQ

Is September a good time to visit Sal?
September in Sal: sweltering, a little rain, with muggy air — fine if you can take 35°C afternoons. It ranks #12 of 12 months for Sal on SeasonMap's comfort score (89/100).
What is the weather like in Sal in September?
In September, Sal averages a daily high of 30.4°C and a low of 25.1°C, with about 36.1 mm of rain over roughly 5.6 rainy days.
What is the air quality in Sal in September?
Sal has a mean US Air Quality Index of about 58 in September.