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 first day of May in Port of Spain sunrise is at 05:47 and sunset at 18:18. In Port of Spain in May, the average water temperature is 27°C (80.6°F).
• San Fernando - May »
  In San Fernando in May, during 13 rainfall days, 20mm (0.79") of precipitation is typically accumulated. On the first day of May in San Fernando, Trinidad and Tobago, sunrise is at 05:48 and sunset at 18:17.
• Chaguanas - May »
  The months with the lowest UV index in Chaguanas, Trinidad and Tobago, are January through December, with an average maximum UV index of 7. Although the frequency of rainfall days increases significantly, the warmth of the daytime temperature preserves the attractiveness of Chaguanas for outdoor activities.
• Arima - May »
  The months with the lowest UV index in Arima 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 highest UV index in Arima, Trinidad and Tobago.
• Couva - May »
  The months with the highest UV index in Couva 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 Couva.
• Point Fortin - May »
  January through December, with an average maximum UV index of 7, are months with the lowest UV index in Point Fortin. The months with the lowest UV index in Point Fortin are January through December, with an average maximum UV index of 7.
• Sangre Grande - May »
  January through December, with an average maximum UV index of 7, are months with the highest UV index in Sangre Grande, Trinidad and Tobago. The months with the lowest UV index in Sangre Grande are January through December, with an average maximum UV index of 7.
• Scarborough - May »
  The yearly peak temperatures in Scarborough occur in March through June, August through October, averaging a high-temperature of 31°C (87.8°F). In Scarborough, the months of March through June, August through October register the average highest temperatures, peaking at 31°C (87.8°F).
• Penal - May »
  The months with the highest UV index in Penal are January through December, with an average maximum UV index of 7. The months with the highest UV index in Penal are January through December, with an average maximum UV index of 7.
• 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. With the advent of May, Diego Martin experiences an average high-temperature of a still moderately hot 29.4°C (84.9°F), mirroring a close resemblance to the previous month.