Climate guide for Bijagos, Guinea-Bissau

Best Time to Visit
Bijagos

How to read the score (0–10)
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01 · Guinea-Bissau

About Bijagos

The Bijagós archipelago is a sensitive cultural and ecological landscape, not a generic tropical-island escape. Boat journeys, mangroves, beaches, traditional communities, birdlife, turtles, and protected areas depend on tides, weather, local permissions, and a small number of reliable operators. Some islands and sites have spiritual or community restrictions that visitors must follow. Arrange guides, permits, food, fuel, and accommodation before departure, carry communication and medical essentials, never approach wildlife or sacred areas casually, and allow several spare days around every mainland or inter-island transfer.

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Did you know?

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Travel Tips

01Best time & timing
The strongest months are January, March, April: January peaks at 8.1/10, while September drops to 3.3/10.
02Weather & what to pack
27°C and 0 mm of rain shape a typical January here. Pack the lightest clothing you own, a hat and more water than feels necessary.
03Crowds & value
Book early for January, the busiest stretch; May is the value window at 7.8/10.

Things to do in Bijagos

Bijagos, Guinea-Bissau. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Bijagos: the short answer

The best time to visit Bijagos is January, followed by March, April. Those months combine the most usable temperatures with the fewest lost days to rain: January averages 27°C with 0 mm of rain and about 31 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are September, August.

Across the year Bijagos swings from 26°C in August to 28°C in November, a 2-degree spread, while rainfall ranges from 0 mm in January to 479 mm in August. That is the whole planning problem in one sentence: Bijagos is not equally good year-round, and the difference between the best and worst month here is 4.8 points on a 10-point scale.

Warmest month: November (28°C). Coolest: August (26°C). Driest: January (0 mm). Wettest: August (479 mm).

Bijagos month by month

January in Bijagos — the year's strongest window

Best window · 8.1/10

January averages 27°C (81°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.

Rain is a non-issue at 0 mm for the month, with about 31 days with 6+ hours of sunshine and 11.5 hours of daylight to work with.

On our climate-comfort scale this is the top-ranked month of the year for Bijagos at 8.1/10 — the reference point every other month on this page is measured against.

Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

February in Bijagos — reliably good (5th best month)

Good · 8/10

February averages 28°C (82°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.

Rain is a non-issue at 0 mm for the month, with about 28 days with 6+ hours of sunshine and 11.8 hours of daylight to work with.

It scores 8/10 here, 5th of 12 months, against 8.1/10 in the destination's best month.

Plan for peak pricing, with this is one of the busiest months here.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

March holds up well in Bijagos — 2nd best month

Good · 8.1/10

Days in March average 27°C (81°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

At just 0 mm for the month, rain will not shape your plans; you get about 31 days with 6+ hours of sunshine and 12.1 hours of daylight.

That is 8.1/10 on the same scale — 2nd of 12 months, versus 8.1/10 for the best month here.

Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

April holds up well in Bijagos — 3rd best month

Good · 8.1/10

April averages 27°C (81°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.

Rain is a non-issue at 0 mm for the month, with about 30 days with 6+ hours of sunshine and 12.4 hours of daylight to work with.

It scores 8.1/10 here, 3rd of 12 months, against 8.1/10 in the destination's best month.

Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

May in Bijagos: strong conditions, 6th of 12

Good · 7.8/10

Days in May average 28°C (82°F) and humidity near 71% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

At just 14 mm for the month, rain will not shape your plans; you get about 30 days with 6+ hours of sunshine and 12.7 hours of daylight.

That is 7.8/10 on the same scale — 6th of 12 months, versus 8.1/10 for the best month here.

Expect mid-season pricing, and crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

June in Bijagos — workable with trade-offs

Trade-offs · 5.6/10

June averages 28°C (82°F) and humidity near 78%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Rainfall runs 89 mm, so plan one flexible day in three; you still get about 26 days with 6+ hours of sunshine and 12.8 hours of daylight.

It scores 5.6/10 here, 8th of 12 months, against 8.1/10 in the destination's best month.

Figure on mid-season pricing, with crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.

Flexible dates? January scores 2.5 points higher here — enough to change the trip.

July in Bijagos: expect compromises

Hardest · 3.4/10

July averages 26°C (80°F) and humidity near 85%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

421 mm makes this the wettest stretch of the year, though about 22 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.

It scores 3.4/10 here, 10th of 12 months, against 8.1/10 in the destination's best month.

Plan for low-season pricing, with crowds are light for this destination.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

Flexible dates? January scores 4.7 points higher here — enough to change the trip.

August in Bijagos — the hardest end of the year

Hardest · 3.4/10

Days in August average 26°C (79°F) and humidity near 86% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

This is the year's wettest stretch at 479 mm, but with about 21 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 3.4/10 on the same scale — 11th of 12 months, versus 8.1/10 for the best month here.

Expect low-season pricing, and crowds are light for this destination.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

If your dates are flexible, January is materially better in Bijagos — 4.7 points higher on the same scale.

September in Bijagos — off-season conditions

Hardest · 3.3/10

Days in September average 26°C (80°F) and humidity near 86% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

This is the year's wettest stretch at 330 mm, but with about 23 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.

That is 3.3/10 on the same scale — 12th of 12 months, versus 8.1/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

If your dates are flexible, January is materially better in Bijagos — 4.8 points higher on the same scale.

October in Bijagos — off-season conditions

Hardest · 3.8/10

October averages 27°C (81°F) and humidity near 84%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Monthly rainfall reaches 169 mm — wet for this destination — but about 28 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 3.8/10 here, 9th of 12 months, against 8.1/10 in the destination's best month.

Figure on low-season pricing, with crowds are light for this destination.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.

Flexible dates? January scores 4.3 points higher here — enough to change the trip.

November in Bijagos: strong conditions, 7th of 12

Good · 7.5/10

November averages 28°C (83°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.

Rain is a non-issue at 12 mm for the month, with about 29 days with 6+ hours of sunshine and 11.6 hours of daylight to work with.

It scores 7.5/10 here, 7th of 12 months, against 8.1/10 in the destination's best month.

Plan for peak pricing, with crowds are moderate.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

December in Bijagos — reliably good (4th best month)

Good · 8.1/10

Days in December average 27°C (81°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.

At just 4 mm for the month, rain will not shape your plans; you get about 30 days with 6+ hours of sunshine and 11.5 hours of daylight.

That is 8.1/10 on the same scale — 4th of 12 months, versus 8.1/10 for the best month here.

Budget for peak pricing, and this is one of the busiest months here.

Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.

FAQ

Frequently asked

When is the best time to visit Bijagos, Guinea-Bissau?
In Ideal Weather mode, the best months to visit Bijagos are January, March, April, December, February. January is the single peak month with an Ideal Weather score of 8.1/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Bijagos year-round?
Bijagos has a climate profile suited to sightseeing and cultural travel. Average monthly temperatures range from 26°C in August to 28°C in November, with Ideal Weather scores between 3.3 and 8.1 out of 10.
Which months should I avoid in Bijagos?
The lowest Ideal Weather-scoring months in Bijagos are September (3.3/10), July (3.4/10), August (3.4/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Bijagos?
August is the wettest month in Bijagos, averaging about 479 mm of rainfall. January is the driest, at roughly 0 mm.
Which is the sunniest month in Bijagos?
January sees the most sun in Bijagos, with about 31 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Bijagos a good destination for sightseeing and cultural travel?
Bijagos is well suited to sightseeing and cultural travel. Its highest Ideal Weather window (January, March, April, December, February) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Bijagos calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Bijagos: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for sightseeing and cultural travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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Curated in Bijagos

Tickets & experiences