May weather forecast
São Tomé and Príncipe

In São Tomé and Príncipe, May signals the conclusion of the rainy season. Rainfall levels start to decrease compared to April, though they remain significant, often between 130mm (5.12") and 150mm (5.91"). This continues to support the vibrant green landscapes that characterize the islands.

Despite the change in precipitation, the temperature in May remains stable and consistent with the rest of the year, typically ranging from 22°C (71.6°F) to 30°C (86°F). Coastal cities such as São Tomé and Santo Antonio follow this general trend. However, in higher altitude regions, for instance, the Obo National Park, temperatures can be a bit cooler due to the influence of altitude.

May represents a transitional period in the country's climate, as the heavy rains of the wet season start to recede, giving way to the drier months ahead. The transition into June marks the onset of the dry season, with rainfall levels reducing significantly. Nonetheless, the temperature continues to remain consistent, reinforcing the year-round tropical climate that São Tomé and Príncipe is known for. Despite the decrease in rainfall, the precipitation in May continues to nourish the islands' flora and fauna, including the country's important cocoa plantations.

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• São Tomé - May »
  The months with the highest UV index are January through May, August through December, with an average maximum UV index of 12. In São Tomé, during May, the rain falls for 10 days and regularly aggregates up to 113mm (4.45") of precipitation.
• Neves - May »
  The months with the highest UV index in Neves, São Tomé and Príncipe, are January through May, October through December, with an average maximum UV index of 7. In Neves the average relative humidity in May is 79%.
• Trindade - May »
  On the first day of May in Trindade sunrise is at 05:26 and sunset at 17:34. In Trindade, São Tomé and Príncipe, in May, during 20.5 rainfall days, 122mm (4.8") of precipitation is typically accumulated.
• Santa Cruz - May »
  January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Santa Cruz, São Tomé and Príncipe. In Santa Cruz, São Tomé and Príncipe, in May, it is raining for 20.5 days, with typically 122mm (4.8") of accumulated precipitation.
• Guadalupe - May »
  On the first day of May in Guadalupe, São Tomé and Príncipe, sunrise is at 05:26 and sunset at 17:34. In Guadalupe during May, the rain falls for 20.5 days and regularly aggregates up to 122mm (4.8") of precipitation.
• Santo Antonio - May »
  The months with the highest UV index in Santo Antonio are January through May, August through November, with an average maximum UV index of 12. January through May, August through November, with an average maximum UV index of 12, are months with the highest UV index in Santo Antonio, São Tomé and Príncipe.
• Monte Cafe - May »
  The weather in Monte Cafe during May records an average high-temperature of a still moderately hot 27.8°C (82°F), closely mirroring the preceding month. The months with the highest UV index in Monte Cafe, São Tomé and Príncipe, are January through May, October through December, with an average maximum UV index of 7.
• Ribeira Afonso - May »
  In Ribeira Afonso, São Tomé and Príncipe, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation. On the first day of May in Ribeira Afonso, São Tomé and Príncipe, sunrise is at 05:26 and sunset at 17:33.
• Santa Luzia - May »
  On the last day of the month, in Santa Luzia, São Tomé and Príncipe, sunrise is at 05:27 and sunset at 17:35 GMT. January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Santa Luzia, São Tomé and Príncipe.
• Lemba - May »
  The months with the highest UV index in Lemba are January through May, October through December, with an average maximum UV index of 7. The arrival of May in Lemba records an average high-temperature of a still moderately hot 27.8°C (82°F), closely related to the 28.6°C (83.5°F) observed in April.
• Cantagalo - May »
  In Cantagalo during May, the rain falls for 20.5 days and regularly aggregates up to 122mm (4.8") of precipitation. In Cantagalo, São Tomé and Príncipe, the average relative humidity in May is 79%.