Trinidad and Tobago has a tropical climate with periods of high humidity and rainfall. Both islands experience varying amounts of seasonal rainfall split into a wet season and a dry season. The north east trade winds channels rainfall to the mountainous north and eastern regions of the islands.
The wet season runs from June to December, and the islands receive regular tropical storms accompanied by high humidity. The tropical storms are short with heavy showers occurring around noon before quickly dissipating. If particularly heavy, flash flooding may occur, especially in urban areas and the low lying central regions.
The dry season runs from January to May, rainfall still occurs though lighter and shorter. Forrest fires and drought conditions may also accompany the dry season as any rain is carried by the north east trade winds and is deposited on the Northern Mountain Range before it can reach low lying areas.
The coolest months are January and February with a average minimum temperature is about 68 °F (20 °C). The warmest months are April, May, and October, which have an average maximum temperature of about 89 °F (32 °C).
In general temperatures range between 77 °F (25 °C) in February and 85 °F (29 °C) in April. Temperatures vary significantly between day and night, and coastal sea breezes cool temperatures across the islands.
During the wet season which is also the Caribbean’s hurricane season the islands experience periods of early morning sunshine which are interrupted by intermittent afternoon rainfall. Although rainfall is doesn't last long it can be heavy and flooding may occur. Expect traffic delays on the roads and highways and even landslides in some rural and mountainous areas.
The dry season can be intense at times as rainfall is minimal and even with occasional light showers to help cool down the heat the majority of the day is humid. Bush fires do occur in the hills and mountains and dust can be a problem.
If sun worship is your game the dry season is the best time to visit as the heat warrants regular visits to the beaches. However if beautiful backdrops for your vacation photos and videos are what you’re seeking then the wet season provides lush green landscapes.