Boa Vista weather by month
The best time to visit Boa Vista is April, June and July — 94/100 in June, 27°C and 0 rainy days. The best season is summer, June to August (93/100 on average).
The worst month is September at 89/100 — sweltering, a little rain, muggy air. See September →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Cabo Verde →
Best season: June to August (93/100 on average) · worst September (89/100)
- Days
- 27°C
- Nights
- 23°C
- Wet days
- 0
- Sun
- 11.9 h
- Humidity
- 77%
- Daylight
- 13 h

Boa Vista, month by month
Comfort score out of 100 for the kind of trip Boa Vista is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
What's on in Boa Vista through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Boa Vista in June
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.
Busyschool holidays in 3 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Traveller notes on Boa Vista
What people who have been say about the place — the year-round notes first, then month by month.
Boa Vista's forum describes January as reliably warm and sunny for sunbathing, typically around 25C with the odd cloudy day, though multiple posters flagged the wind as genuinely chilly at times even under clear skies - it's the kind of place where a cardigan for the evening is worth packing despite the warm days. The pool and sea were described as too cold for comfortable swimming by some visitors, matching the island's relatively cool January water. An occasional Saharan dust event can roll through for a few days and, in rare cases, disrupt flights.
Forum posters call July technically the start of the rainy season but say you'd be unlucky to see more than a quick, short shower - high-20sC temperatures with plenty of sun are the norm. One repeat visitor who's been to Boa Vista in July and August many times reports never experiencing bad weather, describing it as very hot by day with a lovely, welcoming breeze that keeps things comfortable despite the heat - though that same breeze can mask sun exposure, so posters stress applying sunscreen generously regardless of how pleasant it feels. Wind itself is actually strongest in winter, not July, making midsummer comparatively calmer on that front.
Add your own note from Boa Vista's card on the map.