Over the next 10 days Saint-Marc tops out around 85° (Wednesday) and dips to 78° on the coolest night (Wednesday). Roughly 1.5 in of rain falls over the period, with Sunday the most likely wet day (81%). Wind is the one to watch: gusts to 25 mph around Saturday. Right now Saint-Marc is about 2° cooler than nearby Port-de-Paix. Longer view: a tropical climate — warm all year, with the calendar split into wet and dry rather than hot and cold.
Saint-Marc, Haiti · 19.11°N, 72.70°W · America/Port-au-Prince · Forecast computed for these exact coordinates