May weather forecast
Trinidad and Tobago

May marks the transition from the dry to the wet season in Trinidad and Tobago, resulting in a noticeable increase in rainfall compared to the preceding months. Temperatures in May maintain a warm profile, typically ranging from 24°C (75.2°F) in the cooler morning hours to 31°C (87.8°F) at the height of the day. May is neither the hottest nor the coldest month, but it does signal the onset of the wetter and slightly hotter period of the year.

The national weather trends are reflected in both Port of Spain, Trinidad's capital, and Scarborough, Tobago's largest city. Both coastal cities experience comparable temperature ranges and continue to benefit from the moderating influence of the sea, which often brings about cooling breezes that can temper the daytime heat.

May is characterized by a significant increase in rainfall compared to the previous months, with average precipitation levels typically ranging from 60mm (2.36") to 100mm (3.94"). This month, therefore, marks a notable shift towards the wet season. However, while rain showers are more frequent and longer-lasting than in previous months, they are often interspersed with periods of sunshine, offering a balance of weather conditions.

Wind speeds in May remain moderate, generally averaging 15km/h (9.3mph). As usual, the northeast trade winds help to alleviate the somewhat higher temperatures and increased humidity typical of this transition period. May still falls within the dry season and does not typically experience extreme weather events such as hurricanes or tropical storms.

While the increase in rainfall might deter some visitors, May still offers ample opportunity for outdoor activities, particularly in the early part of the month. It can also be a more tranquil time to visit, as it falls between the high tourist season associated with the dry period and the cultural events that occur in the early wet season.

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• Port of Spain - May »
  On the last day of the month, sunrise is at 05:42 and sunset at 18:25 AST. In Port of Spain the average seawater temperature in May is 27°C (80.6°F).
• San Fernando - May »
  The months with the lowest UV index in San Fernando are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in San Fernando.
• Chaguanas - May »
  In Chaguanas in May, during 12.6 rainfall days, 22mm (0.87") of precipitation is typically accumulated. On the first day of May in Chaguanas sunrise is at 05:47 and sunset at 18:17.
• Arima - May »
  January through December, with an average maximum UV index of 7, are months with the highest UV index in Arima, Trinidad and Tobago. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Arima, Trinidad and Tobago.
• Couva - May »
  On the first day of May in Couva sunrise is at 05:47 and sunset at 18:18. Throughout the year, in Couva there are 202.6 rainfall days, and 599mm (23.58") of precipitation is accumulated.
• Point Fortin - May »
  On the first day of May in Point Fortin sunrise is at 05:48 and sunset at 18:18. In Point Fortin, Trinidad and Tobago, in May, the average water temperature is 27.8°C (82°F).
• Sangre Grande - May »
  The months with the highest UV index in Sangre Grande, Trinidad and Tobago, are January through December, with an average maximum UV index of 7. In Sangre Grande in May, during 12.6 rainfall days, 22mm (0.87") of precipitation is typically accumulated.
• Scarborough - May »
  On the first day of May in Scarborough sunrise is at 05:43 and sunset at 18:16. Scarborough witnesses its peak temperatures during March through June, August through October, when the average high-temperature reaches 31°C (87.8°F).
• Penal - May »
  The months with the lowest UV index in Penal are January through December, with an average maximum UV index of 7. May is the month when the wet season takes full hold in Penal, Trinidad and Tobago.
• Diego Martin - May »
  The months with the lowest UV index in Diego Martin are January through December, with an average maximum UV index of 7. In Diego Martin, Trinidad and Tobago, in May, during 12.6 rainfall days, 22mm (0.87") of precipitation is typically accumulated.