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Bissau Weather in May
May in Bissau sees daytime temperatures around 34°C (93°F) and lows of 25°C (77°F) at night. Rainfall is minimal, so you're unlikely to need an umbrella.
Rainfall in Bissau in May
Analyzing past climate data, one can expect approximately 3 days of rain, averaging 5.5 mm (0.2 in). When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in Bissau in May
May in Bissau brings very high temperatures, with highs of 34°C (93°F) and nights around 25°C (77°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. With lows around 25°C (77°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Bissau in May
There are approximately 250 hours of sunshine this month, resulting in mostly clear days.May in Bissau can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Bissau Temperature in May
Min Temperature
25°C (77°F)
Max Temperature
34°C (93°F)
Chance of Rain
11%
Precipitation
5.5 mm (0.2 in)
Rainy days
3 days
Sunshine
250 hours
Percentage Sunshine
Bissau Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bissau - and find the best time to visit.
Historical weather records for Bissau in May
Browse day-by-day weather records for Bissau spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Bissau historical weather extremes in May
The extremes listed below come from historical weather data collected in Bissau from 2006 through 2026.
- The warmest day in May was on May 1, 2026, with a maximum of 41°C (106°F).
- On May 21, 2014, Bissau saw its coldest May day with temperatures maxing out at 28°C (82°F).
- The coldest night in May in Bissau was on May 5, 2021, with a minimum of 20°C (68°F).
Best Places in Guinea-Bissau in May
Find out more about the weather in Guinea-Bissau and which places have the best travel conditions in this month. See all of Guinea-Bissau in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Bissau in May
Hot weather in May means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. With minimal rainfall expected, you can leave the rain gear at home. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Bissau in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
Bissau 3-Day Forecast
More climate data for Bissau
See the full Bissau climate overview or explore weather in Guinea-Bissau.
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Where to go in May - average daytime high across popular destinations.
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