Hot
Average highs reach 34°C, so days can feel very hot.
May verdict
Very good for holiday weather
Average highs reach 34°C, so days can feel very hot. Sunshine averages 7.9h per day, enough for a balanced month. Rainfall averages 35mm, which is relatively low for holiday planning.
Monthly averages
Temp
34°C
Rain
35mm
Sun
7.9h
Sea
27°C
Weather score
76
Very good
Hot
Average highs reach 34°C, so days can feel very hot.
Drier
Rainfall averages 35mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.9h per day, enough for a balanced month.
Warm sea
Sea temperatures average 27°C, so swimming is usually comfortable by monthly-average standards.
Map
Compare Guinea-Bissau with nearby places by weather score, rain, sun, temperature, and swim conditions.
May34°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsFebruary to May
This stretch sets the upper range for average daytime heat.
May35mm average rain
May is one of Guinea-Bissau's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to June and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May7.9 hours average sun
May is brighter than Guinea-Bissau's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJanuary to May and November
This stretch has the strongest sunshine in the monthly averages.
May27°C average sea
May is close to Guinea-Bissau's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly and October to November
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
May76 weather score
May scores above Guinea-Bissau's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJanuary to May and November to December
These months have the strongest weather score in the monthly averages.