Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Bissau is from January, February, December. — consistent weather climate
⛈Hot & rainy
| Score | 99 | 95 | 91 | 90 | 89 | 76 | 43 | 44 | 41 | 56 | 84 | 98 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Hot & dry | Hot & dry | Hot & dry | Hot & dry | Hot & dry | Hot & dry | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Hot & dry | Hot & dry |
| Temperature | 21–33°C | 22–34°C | 23–34°C | 23–33°C | 24–32°C | 25–31°C | 25–29°C | 25–28°C | 25–29°C | 25–30°C | 24–32°C | 22–33°C |
| Feels like | 20–32°C | 21–34°C | 23–35°C | 25–36°C | 27–35°C | 29–35°C | 29–34°C | 29–33°C | 29–35°C | 30–37°C | 28–36°C | 21–33°C |
| Precipitation | 0mm 0 days | 0mm 0 days | 0mm 0 days | 0mm 0 days | 4mm 1 days | 61mm 8 days | 419mm 30 days | 506mm 30 days | 335mm 29 days | 146mm 15 days | 17mm 2 days | 1mm 0 days |
| Sunshine | 10.5h ☀︎ 91% | 10.8h ☀︎ 92% | 11.2h ☀︎ 93% | 11.7h ☀︎ 95% | 11.2h ☀︎ 88% | 9.1h ☀︎ 71% | 5.5h ☀︎ 43% | 5.0h ☀︎ 40% | 5.8h ☀︎ 47% | 9.1h ☀︎ 76% | 10.4h ☀︎ 90% | 10.1h ☀︎ 88% |
| Wind | N · 16 km/h | NW · 17 km/h | W · 18 km/h | W · 19 km/h | SW · 19 km/h | SW · 18 km/h | SW · 17 km/h | SW · 18 km/h | SW · 15 km/h | SW · 13 km/h | NW · 12 km/h | N · 15 km/h |
| Humidity (%) | 43% | 45% | 52% | 60% | 67% | 76% | 86% | 87% | 87% | 85% | 72% | 49% |
| Day length | 11.5h | 11.8h | 12.1h | 12.4h | 12.7h | 12.8h | 12.7h | 12.5h | 12.2h | 11.9h | 11.6h | 11.4h |
Guinea-Bissau's biggest annual celebration fills the capital's streets with masked dancers, colorful costumes, and live…
Bissau's year divides brutally between months submerged in torrential Atlantic rains and months of dry, sunlit calm, yet travelers miss the sweet spot: peak crowds vanish right after the new year, leaving January and February as the capital's clearest, easiest weeks.
Most travelers who step foot in Bissau treat it as a fleeting departure lounge—a dusty administrative capital on the wide estuary of the Geba River where you arrange a boat to the outer islands or stamp a visa before moving on. The city does not immediately plead for your affection. Its rhythm is slow, dictated by Atlantic tides, cashew harvests, and the long, shifting shadow of heat cast across Portuguese-era arcades. But staying put reveals an unhurried, atmospheric port with a languid pulse found nowhere else on the West African coast. To catch it at its best, you only need to avoid the months when the heavens break open and drown the streets.
December through February brings the city to life under endless blue skies. The oppressive coastal humidity recedes, replaced by dry air drifting off the interior and steady sea breezes rustling the mango trees. Midday highs hover near 33 degrees, but the shade is actually cool, and the evenings turn gentle enough for long, wandering walks through the quiet streets of Bissau Velho. Here, peeling pastel facades and bougainvillea lean over quiet alleys, and open-air bars spill plastic chairs onto cracked sidewalks without the threat of a single raindrop.
While December draws expats, diplomats, and diaspora travelers home for the holidays, January empties out remarkably. Crowds thin by half almost overnight, leaving the capital pleasantly sleepy. You can explore the ramparts of the Fortaleza de São José da Amura or sit by the water without jostling for taxis or fighting for tables at portside grills. The atmosphere is unhurried, dusty, and peaceful.
That tranquil cadence shatters dramatically in February when the Bissau Carnival sweeps through the center. In the days leading up to Lent, delegations from every region and ethnic group across the country converge on the capital. The avenues around Porto Pidjiguiti and the main boulevards turn into dense, kinetic corridors of papier-mâché masks, traditional horn headpieces, body paint, and thunderous polyrhythmic drumming. It is loud, sweltering, and utterly intoxicating. Hotel rooms vanish and transport snarls, but if you want to understand the cultural heart of Guinea-Bissau, this is the singular week to be here.
From March through May, the sun beats down relentlessly, and the furnace gradually stokes up. Rain remains virtually non-existent, but the apparent heat rises every afternoon to a thick, punishing simmer. Walking the sun-baked avenues between noon and four becomes an exercise in endurance, and the city retreats indoors, shuttering windows until the sun sinks low toward the Geba River.
These months coincide with the peak of the cashew harvest, the lifeblood of the nation's economy. The roads leading toward the docks choke with overloaded flatbed trucks, and the air carries a faint, fermented, fruity tang from cashew apples rotting under the brush in the surrounding countryside. Business in the ministries and shipping offices moves at a frenzied pace, but general tourism dries up.
If you find yourself here in late spring, structure your days like the locals do. Rise at dawn to wander the harbor before the glare turns blinding, take shelter through the blistering midday, and emerge only when the evening trade winds off the Atlantic cut the furnace back to manageable warmth. You will have historical sights almost entirely to yourself, provided you can handle the sweat.
By June, the first heavy squalls roll in off the Atlantic, and by July, the skies open with cataclysmic force. The monsoon in Bissau is not a gentle afternoon shower that cools the pavement; it is a relentless, months-long deluge that dumps hundreds of millimeters of water and turns red-dirt side streets into impassable orange clay canals.
August and September are the wettest, darkest months on the calendar. Daylight drops by half under persistent, low-slung grey cloud decks, and high humidity leaves clothing permanently damp. Daily life slows to an agonizing crawl as localized flooding isolates neighborhoods, ferry departures down the Geba River become unpredictable gambles, and electricity cuts grow frequent during thunderstorms. Mold blooms on leather, and mosquito populations explode in standing pools across the city.
Unless you have pressing administrative business or specific fieldwork to conduct, this is a period to avoid entirely. Bissau loses its charm when its streets are underwater, the colonial stone facades turn black with moss, and the simple act of crossing a road requires knee-high rubber boots.
October marks the ragged end of the monsoon. The heavy downpours break up into intermittent, violent storms, and the sun returns in long, dazzling bursts, but the lingering moisture turns the city into a virtual steam bath. The air feels heavier now than at any other point in the year, dense with swampy heat that clings to your skin the moment you step outside an air-conditioned room.
By November, the transition is complete. The rains dwindle to brief, negligible showers, and the city suddenly floods with international aid workers, election observers, researchers, and returning visitors. November registers as the busiest month of the entire year, packing central hotels and filling every riverside terrace, even though the air remains stubbornly humid and noticeably muggy.
There is no real reason to rush into Bissau during this crowded November spike. The smarter move is to hold off just a few weeks until December and January, when the humidity finally breaks, the dust settles, and the capital settles into its most forgiving weather.