Monthly climate guide

Roseau weather in December

Expect hot weather in Roseau in December: afternoons reach about 27°C (81°F), while nights drop to around 26°C (78°F). Around 98 mm of rain falls over the month (wet), and skies are a mix of sun and cloud. Daytime highs are about the same as November and about the same as January.

What stands out in December

Days and nights are close, only about 1°C apart.
Even after dark it stays around 26°C, so sleeping can feel warm.
It's humid — around 78% — so the heat feels heavier.

Avg high

27°C

81°F

Avg low

26°C

78°F

Rainfall

98 mm

wet

Humidity

78%

relative

Sky

42%

cloud · a mix of sun and cloud

Live Roseau forecast Where else to go in December

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Roseau weather by month

Low → high °C Rain (mm)

Show the monthly averages as a table

Average monthly climate in Roseau
Month	Avg high	Avg low	Rain	Humidity	Cloud cover
January	27°C / 80°F	25°C / 77°F	54 mm	77%	39%
February	26°C / 80°F	25°C / 76°F	38 mm	76%	36%
March	27°C / 80°F	25°C / 77°F	50 mm	77%	44%
April	27°C / 81°F	26°C / 78°F	83 mm	77%	54%
May	28°C / 82°F	26°C / 79°F	113 mm	79%	61%
June	28°C / 83°F	27°C / 80°F	123 mm	79%	64%
July	28°C / 83°F	27°C / 81°F	141 mm	80%	54%
August	29°C / 83°F	27°C / 81°F	178 mm	81%	51%
September	29°C / 84°F	27°C / 81°F	171 mm	80%	55%
October	29°C / 83°F	27°C / 81°F	157 mm	80%	55%
November	28°C / 82°F	27°C / 80°F	158 mm	80%	50%
December	27°C / 81°F	26°C / 78°F	98 mm	78%	42%

What to pack for December

Light, breathable clothing (cotton or linen)
A sun hat and high-SPF sunscreen
A refillable water bottle
A compact umbrella or packable rain jacket
Water-resistant shoes
Quick-dry fabrics — it feels stickier than the temperature suggests

Full season-by-season packing guide →

Is December a good time to visit Roseau?

Compare the months in the chart above to find your ideal window.

Best time to visit Roseau →

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Roseau weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/dominica/roseau/december

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Roseau in December: quick answers

Is December a good time to visit Roseau?

December is one of the wetter months in Roseau, with about 98 mm of rain. You can still go: pack a rain jacket and keep plans flexible.

How warm is Roseau in December?

Average highs are about 27°C (81°F) and average lows about 26°C (78°F), based on 10 years of daily data.

Does it rain a lot in Roseau in December?

Roseau typically gets around 98 mm of rain in December — wet.

Figures are long-term averages for the area around Roseau (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.