AI-generatedBissau at a glance
- Best time
- Nov – Dec
- Warmest month
- Mar · 35°
- Warmest sea
- Nov · 29.6°
- Sunshine a year
- 2,560 h
- Rain a year
- 1,424 mm
- Climate
- Tropical
- Time zone
- UTC+0
- Elevation
- 13 m
Climate in Bissau
Bissau has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. March is the warmest month with average highs of 35 °C, while August is the coolest at 28 °C. With around 2,560 hours of sunshine a year, Bissau is sunny; April is the sunniest month with 9.4 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Poor
Best time to visit: November – December
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 26°
- Midday, 13:00: about 30°
- Afternoon, 16:00: about 30°
- Evening, 20:00: about 28°
- Night, 23:00: about 27°
06:5118:44
Warm enough for a T-shirt in the evening.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:38–07:20 · evening 18:16–18:58
- Blue hour
- Morning 06:30–06:38 · evening 18:58–19:06
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Bissau in October?
In October, Bissau is hot: daytime highs average 30 °C, and even at night it stays warm at around 25 °C. The sea averages 29.3 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 22 days, totalling 146 mm. On about 21 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is not an ideal month for a holiday in Bissau.
More details for October
- Daylight
- 11 h 53 min06:51 – 18:44
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 11 km/haverage daily peakAll months
- Cloud cover
- 65 %on averageAll months
- Hot days
- 21 days30 °C or moreAll months
- Time zone
- UTC+0Africa/Bissau
How the score comes together
- Temperatureweight 50 %58 %
- Sunshineweight 20 %47 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Sea temperature in Bissau
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 28.8 – 29.7 °C
Swimming season: All year
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Bissau ranges from 25.3 °C in February to 29.6 °C in November. At 20 °C and more, the sea is warm enough for swimming all year round.
The sea temperature varies from year to year: in November, eight out of ten years were between 29.2 and 29.9 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 25.4° | 24.5° | 26.1° | pleasant |
| FebruaryFeb | 25.3° | 24.0° | 26.4° | pleasant |
| MarchMar | 26.2° | 25.2° | 27.2° | warm |
| AprilApr | 27.0° | 26.0° | 27.9° | warm |
| MayMay | 27.9° | 27.1° | 28.7° | warm |
| JuneJun | 28.4° | 27.6° | 29.2° | warm |
| JulyJul | 28.4° | 27.8° | 29.1° | warm |
| AugustAug | 27.9° | 27.3° | 28.5° | warm |
| SeptemberSep | 28.4° | 27.7° | 28.7° | warm |
| OctoberOct | 29.3° | 28.8° | 29.7° | very warm |
| NovemberNov | 29.6° | 29.2° | 29.9° | very warm |
| DecemberDec | 27.4° | 26.8° | 28.3° | warm |
Sunshine hours in Bissau
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.8 of 11.9 hours of daylight in Bissau, 49 % of the day.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Bissau
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 11 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.
The sun is strongest in April (UV 13).
Minutes until sunburn in October
- Very fair skin
- about 10 min
- Fair skin
- about 15 min
- Light brown skin
- about 20 min
- Olive skin
- about 25 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Bissau: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Bissau has about 22 rainy days with 146 mm of rain in total.
Wind and clouds in Bissau
How breezy and how cloudy Bissau is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Bissau typically peaks at 11 km/h during the day: Beaufort 2, light air.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 65 % of the sky over Bissau: mostly cloudy, with about 5.8 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Bissau
How often the day gets hot in Bissau (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Bissau has about 21 hot days, with an average daytime high of 30 °C: hot and muggy. Plan outdoor activities for the morning and evening, drink a lot and take breaks in the cool.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Bissau
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Warm 20–24°
- Hot 24° and more
- muggy month (10+ muggy days)
HotOctober: nights around 25°. Hot nights: air conditioning makes sleeping much easier. Muggy on about 31 days (dew point 18 °C or more).
The coolest nights are in January (21°), the warmest in June (25°). Nights stay tropical all year (20 °C and more), so a room with air conditioning or at least a fan pays off. It is muggy (dew point 18 °C or more) on about 246 days a year, mostly from March to November.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 59 | 33° | 21° | 25.4° | 8.2 h | 0 | 0 |
| FebruaryFeb | 50 | 35° | 21° | 25.3° | 8.4 h | 0 | 0 |
| MarchMar | 50 | 35° | 23° | 26.2° | 9.2 h | 0 | 0 |
| AprilApr | 51 | 35° | 23° | 27.0° | 9.4 h | 0 | 0 |
| MayMay | 55 | 34° | 24° | 27.9° | 8.7 h | 1 | 6 |
| JuneJun | 43 | 32° | 25° | 28.4° | 5.8 h | 12 | 86 |
| JulyJul | 43 | 29° | 25° | 28.4° | 4.5 h | 28 | 364 |
| AugustAug | 45 | 28° | 24° | 27.9° | 4.1 h | 29 | 467 |
| SeptemberSep | 42 | 29° | 24° | 28.4° | 4.5 h | 27 | 335 |
| OctoberOct | 38 | 30° | 25° | 29.3° | 5.8 h | 22 | 146 |
| NovemberNov | 63 | 32° | 24° | 29.6° | 7.6 h | 4 | 19 |
| DecemberDec | 60 | 33° | 22° | 27.4° | 8.1 h | 0 | 1 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
11.86° N, 15.60° W · 13 m · Africa/Bissau
Best time to visit Bissau
The best time to visit Bissau is from November to December. For a beach holiday with the sea above 21 °C, go from November to June. From January to May it can get very hot, with highs of up to 35 °C. Rain is most frequent from July to October; the wettest month is August with 467 mm.
Bissau through the seasons
How the weather changes over the seasons, with averages for each.
Bissau in the dry season
Nov – Jun
Fair
- 32–35 °C by day
- Sea 27 °C
- 8 h of sun a day
- 18 rainy days in all
Bissau in the rainy season
Jul – Oct
Fair
- 28–30 °C by day
- Sea 29 °C
- 5 h of sun a day
- 107 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Bissau for you.
Your best months: March – May
Based on the climate averages; tap a month to see its details.
Compare two months in Bissau
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
November has the better holiday weather in Bissau: score 63 against 38. In November, days are 2 °C warmer than in October. The sea is about as warm in both months. November has 18 fewer rainy days. The sun shines 2 hours longer a day in November.
| Month | October | November |
|---|---|---|
| Weather score | 38 | 63better |
| Day high | 30° | 32° |
| Night low | 25° | 24° |
| Sea | 29.3° | 29.6° |
| Sunshine | 5.8 h | 7.6 hbetter |
| Rainy days | 22 | 4better |
| Rainfall | 146 mm | 19 mmbetter |
| Muggy days | 31 | 27better |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
Nov – Jun
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Peak heat
Jan – May
Highs of 33 °C or more
Rainy months
Jul – Oct
12 or more rainy days
Bissau month by month
The typical weather for every month at a glance.
59January33° · Sea 25° · 8 h
In January, Bissau is very hot: daytime highs average 33 °C, and even at night it stays warm at around 21 °C. The sea averages 25.4 °C – pleasant for swimming. The sun shines for around 8 hours a day. It hardly ever rains. On about 30 days the thermometer climbs to 30 °C or more. All in all, January is a so-so month for a holiday in Bissau.
Bissau in January50February35° · Sea 25° · 8 h
In February, Bissau is very hot: daytime highs average 35 °C, and even at night it stays warm at around 21 °C. The sea averages 25.3 °C – pleasant for swimming. The sun shines for around 8 hours a day. It hardly ever rains. On about 28 days the thermometer climbs to 30 °C or more. All in all, February is a so-so month for a holiday in Bissau.
Bissau in February50March35° · Sea 26° · 9 h
In March, Bissau is very hot: daytime highs average 35 °C, and even at night it stays warm at around 23 °C. The sea averages 26.2 °C – lovely and warm for swimming. With around 9 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 31 days the thermometer climbs to 30 °C or more. All in all, March is a so-so month for a holiday in Bissau.
Bissau in March51April35° · Sea 27° · 9 h
In April, Bissau is very hot: daytime highs average 35 °C, and even at night it stays warm at around 23 °C. The sea averages 27.0 °C – lovely and warm for swimming. With around 9 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a so-so month for a holiday in Bissau.
Bissau in April55May34° · Sea 28° · 9 h
In May, Bissau is very hot: daytime highs average 34 °C, and even at night it stays warm at around 24 °C. The sea averages 27.9 °C – lovely and warm for swimming. The sun shines for around 9 hours a day. It hardly ever rains. On about 31 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is a so-so month for a holiday in Bissau.
Bissau in May43June32° · Sea 28° · 6 h
In June, Bissau is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 28.4 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 86 mm in total. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is a so-so month for a holiday in Bissau.
Bissau in June43July29° · Sea 28° · 5 h
In July, Bissau is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 28.4 °C – lovely and warm for swimming. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 364 mm. On about 6 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a so-so month for a holiday in Bissau.
Bissau in July45August28° · Sea 28° · 4 h
In August, Bissau is hot: daytime highs average 28 °C, and even at night it stays warm at around 24 °C. The sea averages 27.9 °C – lovely and warm for swimming. Expect around 4 hours of sunshine a day. It is the rainy season: rain falls on about 29 days, totalling 467 mm. The air is often humid and muggy. All in all, August is a so-so month for a holiday in Bissau.
Bissau in August42September29° · Sea 28° · 5 h
In September, Bissau is hot: daytime highs average 29 °C, and even at night it stays warm at around 24 °C. The sea averages 28.4 °C – lovely and warm for swimming. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 27 days, totalling 335 mm. On about 8 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a so-so month for a holiday in Bissau.
Bissau in September38October30° · Sea 29° · 6 h
In October, Bissau is hot: daytime highs average 30 °C, and even at night it stays warm at around 25 °C. The sea averages 29.3 °C – almost as warm as a bath. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 22 days, totalling 146 mm. On about 21 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is not an ideal month for a holiday in Bissau.
Bissau in October63November32° · Sea 30° · 8 h
In November, Bissau is hot: daytime highs average 32 °C, and even at night it stays warm at around 24 °C. The sea averages 29.6 °C – almost as warm as a bath. The sun shines for around 8 hours a day. Rain is rare: about 4 days bring 19 mm in total. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is a good month for a holiday in Bissau.
Bissau in November60December33° · Sea 27° · 8 h
In December, Bissau is hot: daytime highs average 33 °C, and even at night it stays warm at around 22 °C. The sea averages 27.4 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. It hardly ever rains. On about 30 days the thermometer climbs to 30 °C or more. All in all, December is a good month for a holiday in Bissau.
Bissau in DecemberBissau compared
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Bissau vs. Banjul
In October Banjul has the better holiday weather (score 64 vs. 38). During the day it is about as warm in Banjul as in Bissau. The sea is about equally warm. Banjul gets one more hour of sunshine a day.
| in October | Bissau | Banjul |
|---|---|---|
| Holiday score | 38 | 64 |
| Daytime high | 30° | 30° |
| Sea | 29° | 29° |
| Sunshine | 6 h | 7 h |
| Rainy days | 22 | 9 |
| Best time | Nov – Dec | Nov – Jun |
Through the year
Planning a trip to Bissau
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Bissau in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Bissau has its best school-holiday weather during the Christmas holidays (score 60) and its weakest during October half-term (score 38).
- 51
Easter holidays
Mar – Apr
Fair
- 35 °C by day
- Sea 27 °C
- 9.3 h of sun a day
- 0 rainy days a month
Good for: Beach & swimming
Keep in mind: Peak heat
- 53
May half-term
May – Jun
Fair
- 34 °C by day
- Sea 28 °C
- 8.1 h of sun a day
- 3 rainy days a month
Good for: Beach & swimming
Keep in mind: Peak heat
- 44
Summer holidays
Jul – Aug
Fair
- 29 °C by day
- Sea 28 °C
- 4.2 h of sun a day
- 29 rainy days a month
Keep in mind: Frequent rain
- 38
October half-term
Oct
Poor
- 30 °C by day
- Sea 29 °C
- 5.8 h of sun a day
- 22 rainy days a month
Keep in mind: Frequent rain
- 60
Christmas holidays
Dec – Jan
GoodBest holidays
- 33 °C by day
- Sea 26 °C
- 8.1 h of sun a day
- 0 rainy days a month
Good for: Beach & swimming
Keep in mind: Peak heat
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 6 h 5 min
- Distance
- 4,610 km
- Time zone
- UTC+0
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Bissau
When is the best time to visit Bissau?
The best time to visit Bissau is from November to December. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Bissau?
The sea temperature in Bissau ranges from 25.3 °C in February to 29.6 °C in November. At 20 °C and more, the sea is warm enough for swimming all year round.
Can you swim in Bissau in October?
Yes. In October the sea averages 29.3 °C – almost as warm as a bath.
What is the warmest month in Bissau?
March is the warmest month, with average highs of 35 °C and nights around 23 °C. August is the coolest month at 28 °C.
When does it rain most in Bissau?
Rain is most frequent from July to October; the wettest month is August with 467 mm. The driest month is March with 0 mm.
How many hours of sunshine does Bissau get?
Bissau gets around 2,560 hours of sunshine a year. The sunniest month is April with 9.4 hours a day; in August there are 4.1 hours a day.
What time zone is Bissau in?
Bissau uses the time zone Africa/Bissau, which matches UTC all year.
How long is the flight from London to Bissau?
A nonstop flight from London to Bissau takes about 6 h 5 min, for a straight-line distance of about 4,610 km.
Which school holidays are best for Bissau?
Bissau has its best school-holiday weather during the Christmas holidays (score 60) and its weakest during October half-term (score 38). Holiday ratings (0–100): Easter holidays 51, May half-term 53, Summer holidays 44, October half-term 38, Christmas holidays 60.
Near Bissau
Other destinations close by.
Places with a climate like Bissau
Destinations whose weather through the year is closest to Bissau's – good alternatives.