Country

Trinidad and Tobago

Explore historical and projected climate data, climate data by sector, impacts, key vulnerabilities and what adaptation measures are being taken. Explore the overview for a general context of how climate change is affecting Trinidad and Tobago.

Current Climate Climatology

This page presents Trinidad and Tobago's climate context for the current climatology, 1991-2020, derived from observed, historical data. Information should be used to build a strong understanding of current climate conditions in order to appreciate future climate scenarios and projected change. You can visualize data for the current climatology through spatial variation, the seasonal cycle, or as a time series. Analysis is available for both annual and seasonal data. Data presentation defaults to national-scale aggregation, however sub-national data aggregations can be accessed by clicking within a country, on a sub-national unit.  Other historical climatologies can be selected from the Time Period dropdown list. Data for  specific coordinates can be downloaded for in the Data Download page.

Observed, historical data is produced by the Climatic Research Unit (CRU) of University of East Anglia. Data is presented at a 0.5º x 0.5º (50km x 50km) resolution.

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Climate Data Historical

As a result of their southerly location, Trinidad and Tobago experiences two relatively distinct seasonal climatic types: tropical maritime from January to May with warm days and cool nights with relatively low rainfall. The rainfalls at nights are mainly due to daytime convection; and modified moist equatorial climate between June and December, characterized by hot humid days and nights, low wind speeds and increased rainfall, due to convection and equatorial weather systems (Trinidad and Tobago Meteorological Services, 2009). These two climate types result in two distinct seasons, a dry season from January to May and a wet or rainy season from June to December.

Temperature

  • Annual mean temperature has warmed over the period 1981 – 2010 by 0.8 and 0.5°C relative to 1961 – 1990 and 1971 – 1990, respectively.

Precipitation

  • Annual and seasonal rainfall trends for the period 1950 – 2015 are not statistically significant. However, warmer temperature is affecting the water cycle resulting on changes of the amount of rainfall during cyclone season.
  • The number of tropical cyclones (including severe tropical cyclones) affecting Tonga per decade has increased (1981 – 1990, 1991 – 2000, and 2001 – 2010).
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