Monthly climate guide
Bissau weather in May
Expect very hot weather in Bissau in May: afternoons reach about 36°C (96°F), while nights drop to around 24°C (75°F). Around 28 mm of rain falls over the month (fairly dry), and skies are a mix of sun and cloud. Daytime highs are about the same as April and 3°C warmer than June.
What stands out in May
- It's one of the drier stretches of the year in Bissau.
- Nights stay warm, rarely below 24°C — air-conditioning helps.
- Rain is well below Bissau's usual level (around 81% less).
- Only one month is warmer in Bissau than May.
Avg high
36°C
96°F
Avg low
24°C
75°F
Rainfall
28 mm
fairly dry
Humidity
58%
relative
Sky
42%
cloud · a mix of sun and cloud
Bissau weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 29°C / 85°F | 17°C / 62°F | 0 mm | 61% | 33% |
| February | 32°C / 89°F | 18°C / 64°F | 0 mm | 55% | 26% |
| March | 35°C / 95°F | 20°C / 69°F | 1 mm | 55% | 22% |
| April | 37°C / 98°F | 22°C / 72°F | 1 mm | 54% | 26% |
| May | 36°C / 96°F | 24°C / 75°F | 28 mm | 58% | 42% |
| June | 33°C / 91°F | 25°C / 77°F | 134 mm | 74% | 64% |
| July | 29°C / 84°F | 25°C / 76°F | 443 mm | 87% | 79% |
| August | 29°C / 83°F | 25°C / 76°F | 544 mm | 89% | 83% |
| September | 29°C / 84°F | 25°C / 76°F | 388 mm | 88% | 78% |
| October | 30°C / 86°F | 25°C / 77°F | 192 mm | 84% | 57% |
| November | 30°C / 86°F | 23°C / 73°F | 8 mm | 76% | 41% |
| December | 29°C / 84°F | 18°C / 65°F | 0 mm | 69% | 33% |
What to pack for May
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
Is May a good time to visit Bissau?
Compare the months in the chart above to find your ideal window.
Best time to visit Bissau →Cite or embed this data
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Bissau weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/guinea-bissau/bissau/may
<a href="https://weathercompare.eu/weather/guinea-bissau/bissau/may">Bissau weather in May</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/guinea-bissau/bissau" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Bissau weather in May"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/guinea-bissau/bissau/may">Bissau weather in May</a> – WeatherCompare</p>
Bissau in May: quick answers
Is May a good time to visit Bissau?
It can be, if you like heat: May highs in Bissau are around 36°C. Good for the beach; plan sightseeing for early morning and evening.
How warm is Bissau in May?
Average highs are about 36°C (96°F) and average lows about 24°C (75°F), based on 10 years of daily data.
Does it rain a lot in Bissau in May?
Bissau typically gets around 28 mm of rain in May — fairly dry.
Figures are long-term averages for the area around Bissau (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.