September · Cabo Verde
Best time to visit Boa Vista in September Weather, crowds & prices
Weather in Boa Vista in September
Average temperature 27°C, 63 mm of rain, about 28 days with 6+ hours of sunshine and 78% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.6/10
Ranked #12 of 12 months
- Avg temp
- 27°C
- Rainfall
- 63 mm
- Humidity
- 78%
- Days with 6h+ sun
- 28
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Boa Vista scores 6.6/10 for sightseeing and cultural travel - ranked #12 of 12. Expect around 27°C, 63 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Boa Vista spreads white-sand beaches, wind-shaped dunes, small settlements, and the Viana Desert around the island capital of Sal Rei.
September in Boa Vista — workable with trade-offs
September averages 27°C (80°F) and humidity near 78%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 63 mm, so plan one flexible day in three; you still get about 28 days with 6+ hours of sunshine and 12.2 hours of daylight.
It scores 6.6/10 here, 12th of 12 months, against 9.7/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
Plan for low-season pricing, with crowds are light for this destination.
Flexible dates? March scores 3.1 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Boa Vista in September?
- In September, Boa Vista averages 27°C, 63 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 6.6/10.
- Is September a good time to visit Boa Vista?
- September earns a 6.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Boa Vista in September?
- Expect about 63 mm of rain in September. Average humidity is 78% and there are about 28 days with 6+ hours of sunshine.
Curated in Boa Vista
Tickets & experiences
Things to do in Boa Vista
Boa Vista, Cabo Verde. Live activities and tours from GetYourGuide, matched to this destination.