A number of heat records were broken in the Caribbean in 2020. Notably, in September, Dominica, Grenada and Puerto Rico broke their national/territorial all-time high temperature records. On September 15th, Canefield in Dominica recorded a daytime high temperature of 35.7°C. One day later, Point Salines in Grenada recorded 34°C. According to the US National Weather Service, Aguirre in Puerto Rico recorded 100°F (37.8°C) on September 17th . The Caribbean Heat Season, the time of the year during which most heatwaves occur, has since 1995 been from May to October since about 1995. The peak period occurs during the months of August and September when high humidity coupled with reduced wind speeds increases heat discomfort.
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For the first time, forecasters from across the Caribbean have been participating in a major international atmospheric and oceanic field campaign, entitled, "Elucidating the Role of Clouds-Circulation Coupling in Climate" (EUREC4A). The field campaign is focused on the areas east and south of Barbados, from 20 January to 20 February 2020.