Our verdict
The best time to visit Roseau is December-April
In summer, the temperature in Roseau can rise as high as 30℃ (86℉). In the winter months, it can get down to as low as 24℃ (75℉) at night.
The sun stays up the longest in Roseau in August, so you’ll get the most out of your daytime activities if you visit around this time. The wet season in Roseau usually falls during the months surrounding October each year. It’s not uncommon to get some decent rainfall or light showers during this time, but on some days the weather tends to be fine for a majority of the day, with only a few drops of rain falling from a passing shower.
Learn everything you need to know to help you decide when to go to Roseau below, and don’t forget to use the awesome travel tools we know and love to help you find the best deals and make booking your vacation a breeze!
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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Roseau seasons
Before you continue, it’s important to know when the seasons are in Roseau as they might be different to yours depending on where in the world you’re travelling from. Roseau is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Roseau
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Roseau for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Roseau climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Roseau for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Roseau in January
- Average temperature: 26℃ (79℉)
- Average high temperature: 27℃ (80℉)
- Average low temperature: 26℃ (78℉)
- Average humidity: 75%
- Average sunny days: 3 days
- Average rainfall: 37mm (1") over 22 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in January, make sure you pack t-shirts and light clothing.
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Roseau in February
- Average temperature: 26℃ (79℉)
- Average high temperature: 27℃ (80℉)
- Average low temperature: 25℃ (78℉)
- Average humidity: 74%
- Average sunny days: 4 days
- Average rainfall: 26mm (1") over 19 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in February, make sure you pack t-shirts and light clothing.
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Roseau in March
- Average temperature: 26℃ (79℉)
- Average high temperature: 27℃ (80℉)
- Average low temperature: 25℃ (78℉)
- Average humidity: 75%
- Average sunny days: 5 days
- Average rainfall: 27mm (1") over 18 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in March, make sure you pack t-shirts and light clothing.
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Roseau in April
- Average temperature: 27℃ (80℉)
- Average high temperature: 27℃ (81℉)
- Average low temperature: 26℃ (79℉)
- Average humidity: 76%
- Average sunny days: 3 days
- Average rainfall: 47mm (2") over 21 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in April, make sure you pack t-shirts and light clothing.
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Roseau in May
- Average temperature: 27℃ (81℉)
- Average high temperature: 28℃ (82℉)
- Average low temperature: 27℃ (80℉)
- Average humidity: 77%
- Average sunny days: 2 days
- Average rainfall: 63mm (2") over 24 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in May, make sure you pack t-shirts and light clothing.
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Roseau in June
- Average temperature: 28℃ (82℉)
- Average high temperature: 28℃ (83℉)
- Average low temperature: 27℃ (81℉)
- Average humidity: 77%
- Average sunny days: 1 days
- Average rainfall: 46mm (2") over 20 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in June, make sure you pack t-shirts and light clothing.
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Roseau in July
- Average temperature: 28℃ (82℉)
- Average high temperature: 29℃ (83℉)
- Average low temperature: 27℃ (81℉)
- Average humidity: 77%
- Average sunny days: 1 days
- Average rainfall: 68mm (3") over 23 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in July, make sure you pack t-shirts and light clothing.
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Roseau in August
- Average temperature: 28℃ (83℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 28℃ (82℉)
- Average humidity: 77%
- Average sunny days: 4 days
- Average rainfall: 88mm (3") over 21 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in August, make sure you pack t-shirts and light clothing.
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Roseau in September
- Average temperature: 28℃ (83℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 28℃ (82℉)
- Average humidity: 76%
- Average sunny days: 6 days
- Average rainfall: 86mm (3") over 21 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in September, make sure you pack t-shirts and light clothing.
Roseau in October
- Average temperature: 28℃ (83℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 28℃ (82℉)
- Average humidity: 76%
- Average sunny days: 4 days
- Average rainfall: 91mm (4") over 23 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in October, make sure you pack t-shirts and light clothing.
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Roseau in November
- Average temperature: 28℃ (82℉)
- Average high temperature: 28℃ (83℉)
- Average low temperature: 27℃ (81℉)
- Average humidity: 77%
- Average sunny days: 2 days
- Average rainfall: 84mm (3") over 23 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in November, make sure you pack t-shirts and light clothing.
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Roseau in December
- Average temperature: 27℃ (80℉)
- Average high temperature: 27℃ (81℉)
- Average low temperature: 26℃ (80℉)
- Average humidity: 75%
- Average sunny days: 3 days
- Average rainfall: 50mm (2") over 24 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Roseau in December, make sure you pack t-shirts and light clothing.
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