Roseau Weather History
Dominica · North America · Weather data 1976–today
Roseau sits 1703km from the equator, at sea level. That combination gives it a hot climate with one clear dry season (Tropical savanna climate). Its record high is 30.4°C, set 2023-08-27, its record low 21.1°C, set 1989-02-16.
Data through September 19, 2026.
Frequently asked questions about the weather in Roseau
What is the hottest temperature ever recorded in Roseau?
The highest temperature in this record for Roseau is 30.4°C, measured on 2023-08-27. That is a recorded daily value from Roseau's own series covering 1976 to 2025, not an estimate or a regional average.
What is the coldest temperature ever recorded in Roseau?
The lowest temperature in this record for Roseau is 21.1°C, measured on 1989-02-16. Together with the heat record above, that spans the full range this city has actually experienced across 1976 to 2025.
How much rain does Roseau get a year?
Roseau averages 747mm of precipitation a year, spread across roughly 162 days with at least 1mm. That average is taken over 50 complete calendar years, so one exceptionally wet or dry year does not set the figure.
What was the wettest day on record in Roseau?
On 1979-08-29, 101.6mm fell on Roseau, the highest single-day total in this series. For scale, that is roughly 14% of what the city receives in an average full year, in one day.
How many hours of sunshine does Roseau get a year?
Roseau averages 4115 sunshine hours a year, which works out to about 11.3 hours a day across the whole year. Sunshine hours measure the time direct sunlight actually reaches the ground, not simply how long it is light.
How warm are summers and how cold are winters in Roseau?
Across the summer months Roseau averages a daytime high near 28.1°C, while winter nights average 24.3°C. The seasons here are set from Roseau's position relative to the equator rather than a fixed northern-hemisphere calendar.
What is the strongest wind recorded in Roseau?
The strongest wind speed recorded in Roseau is 87 km/h, on 2007-08-17. That is the daily maximum sustained wind rather than the peak gust, which typically runs higher still.
