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Roseau Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Roseau.
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Climate overview of Roseau
Roseau, Dominica, enjoys a steady climate throughout the year, with daytime temperatures typically around 28°C (82°F). September is the warmest month at 29°C (84°F), while February is the coolest at 27°C (81°F).
With around 1053 mm (41 in) of annual rainfall, Roseau has a notably wet climate. The wettest month is October. The sunniest month is April, with 8.2 hours of sunshine per day on average.
Roseau Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Roseau - and find the best time to visit.
Monthly Temperature in Roseau
The temperature in Roseau remains steady throughout the year, providing a consistently comfortable climate. Average daytime temperatures reach a comfortable 29°C (84°F) in September. In February, the coolest month of the year, temperatures drop to a comfortable 27°C (81°F).
At night, temperatures range from around 26°C (79°F) in September to 24°C (75°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Roseau
Roseau has a relatively rainy climate with high precipitation levels, averaging 1053 mm (41 in) of rainfall annually. Roseau can be quite wet during October, receiving approximately 146 mm (5.7 in) of precipitation over 19 rainy days.
In contrast, during the driest month (March), you will experience much drier conditions, with 38 mm (1.5 in) of precipitation spread across 15 rainy days. For more details, please visit our Roseau Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Roseau
Roseau experiences moderate variation in sunshine hours across the seasons. With 8.2 hours daily sunshine in April, it dips to 6.3 hours in December, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Douglas-Charles Airport, Dominica (28 KM, 17 Miles).
Daily hours of sunshine
Data from: Douglas-Charles Airport, Dominica (28 KM, 17 Miles).
Humidity in Roseau by Month
The relative humidity is high throughout the year in Roseau.
The city experiences its highest humidity in November, reaching 74%. In April, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Douglas-Charles Airport, Dominica (28 KM, 17 Miles).
Best Time to Visit Roseau
The most comfortable overall weather for exploring Roseau is usually found in January, February, March, April, May, June and December. Conditions are generally least comfortable in July, August, September, October and November.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
excellent
Feb
excellent
Mar
excellent
Apr
excellent
May
excellent
Jun
excellent
Jul
very good
Aug
very good
Sep
very good
Oct
very good
Nov
very good
Dec
excellent
- Best overall: January, February, March, April, May, June and December
- Warmest weather: May, June, July, August, September, October, November and December
- Most sunshine: April, May and August
- Fewest rainy days: February, March, April and May
Frequently asked questions about the climate in Roseau
What is the best time to visit Roseau?
January, February, March, April, May, June and December typically offer the most optimal weather in Roseau. In contrast, July, August, September, October and November tend to have less optimal conditions.
What temperatures can I expect in Roseau?
Daytime highs range from 27°C (81°F) in February to 29°C (84°F) in September. Nighttime lows range from 24°C (75°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does Roseau get?
Annual rainfall is around 1053 mm (41 in). October is the wettest month with 146 mm (5.7 in), while March is the driest with 38 mm (1.5 in).
How sunny is Roseau?
Roseau receives around 2,630 hours of sunshine per year. April is the sunniest month with 245 hours, while December is the cloudiest with just 190 hours. Overall, Roseau enjoys abundant sunshine.
Roseau 3-Day Forecast
Roseau on the map
Roseau is highlighted - select any city to see its climate.
Popular in September
Where to go in September - average daytime high across popular destinations.
Salisbury
29°C (84°F) Scotts Head Village29°C (84°F) Roseau29°C (84°F) Marigot29°C (84°F) Portsmouth29°C (84°F) Calibishie29°C (84°F) Pont Cassé29°C (84°F) Castle Bruce
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