With a population of around 49,300, Grangwav sits in Ouest, Haiti. The city operates in the America/Port-au-Prince time zone.
Recent weather here gives a sense of typical conditions: in 2025, Grangwav recorded a mean annual temperature of 82°F, ranging from 66°F lows in December to 100°F highs in June, with about 23 inches of precipitation across the year.