May weather forecast
Guinea-Bissau

May in Guinea-Bissau marks the transition from the dry season to the wet season. Temperatures continue to rise, averaging between 25°C (77°F) during the cooler morning hours and 39°C (102.2°F) at the peak of the day, making it one of the hottest months of the year.

In the coastal regions, including the capital city, Bissau, temperatures are somewhat tempered by the Atlantic Ocean, ranging from 25°C (77°F) to 37°C (98.6°F). However, the city begins to experience higher levels of humidity in preparation for the upcoming monsoon season.

May sees a significant increase in rainfall compared to the preceding dry months, with precipitation levels reaching up to 120mm (4.72"). This increase in rainfall, although not yet at the level of the intense rains of the full wet season, signifies the beginning of the country's transition to its rainy phase.

When compared to April, May is both hotter and wetter, signaling the end of the dry season. Despite the rising heat, humidity, and rainfall, May still offers opportunities for visitors to explore Guinea-Bissau, especially early in the month before the rains become more regular. The beginning of the wet season also leads to a burst of growth in the country's flora, transforming the landscape into a lush, green spectacle.

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• Bissau - May »
  On the last day of the month, sunrise is at 06:36 and sunset at 19:23 GMT. In Bissau in May, it is raining for 3 days, with typically 17mm (0.67") of accumulated precipitation.
• Gabu - May »
  February through September, with an average maximum UV index of 12, are months with the highest UV index in Gabu, Guinea-Bissau. In Gabu during the entire year, the rain falls for 80 days and collects up to 1426mm (56.14") of precipitation.
• Canchungo - May »
  The months with the highest UV index in Canchungo are January through June, September through December, with an average maximum UV index of 7. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth.
• Bissora - May »
  The month of May signals a distinct change in weather patterns in Bissora, as the dry spell of the previous months is replaced with rainfall. On the first day of May in Bissora, sunrise is at 06:42 and sunset at 19:15.
• Bolama - May »
  On the last day of the month, in Bolama sunrise is at 06:36 and sunset at 19:22 GMT. This shift ushers in a period of heightened humidity in Bolama, taking the values up from the norm observed in the first quarter of the year.
• Cacheu - May »
  January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index in Cacheu, Guinea-Bissau. In Cacheu, during the entire year, the rain falls for 103.1 days and collects up to 677mm (26.65") of precipitation.
• Buba - May »
  The months with the highest UV index in Buba are January through July, September through December, with an average maximum UV index of 7. In Buba in May, it is raining for 4.4 days, with typically 16mm (0.63") of accumulated precipitation.
• Catió - May »
  On the last day of the month, in Catió, sunrise is at 06:36 and sunset at 19:20 GMT. The months with the highest UV index in Catió are January through July, September through December, with an average maximum UV index of 7.
• Quebo - May »
  In Quebo in May, during 4.4 rainfall days, 16mm (0.63") of precipitation is typically accumulated. Throughout the year, in Quebo, Guinea-Bissau, there are 109.7 rainfall days, and 868mm (34.17") of precipitation is accumulated.
• Fulacunda - May »
  As the second month of Fulacunda's wet season, May sees a substantial increase in rainfall, humidity, and cloud cover. In Fulacunda during May, the rain falls for 4.4 days and regularly aggregates up to 16mm (0.63") of precipitation.
• Farim - May »
  On the last day of the month, in Farim sunrise is at 06:34 and sunset at 19:22 GMT. In Farim, during the entire year, the rain falls for 107.6 days and collects up to 593mm (23.35") of precipitation.