Roseau
Dominica
Long-term weather forecast
Long-term weather forecast
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December weather forecast and Climate
Roseau, Dominica

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A calm, clear waterfront in the valley city of Roseau, Dominica, with mountains afar
A calm, clear waterfront in the valley city of Roseau, Dominica, with mountains afar
  • The average high temperature in December: 29°C

Warmest months (with the highest average high temperature) are May, June, July, August, September and October (31°C).
Months with the lowest average high temperature are January, February and December (29°C).

  • The average low temperature in December: 21°C

The month with the highest average low temperature is August (24°C).
Coldest months (with the lowest average low temperature) are January, February, March and December (21°C).

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  • The average rainfall in December: 176mm

The wettest month (with the highest rainfall) is November (252mm).
Driest months (with the lowest rainfall) are February and April (87mm).

  • The average rainfall days in December: 19 days

The month with the highest number of rainy days is September (23 days).
Months with the lowest number of rainy days are February and April (14 days).

  • The average sea temperature in December: 27°C

Best months for swimming (with the highest average sea temperature) are September and October (29°C).
Coldest months (with the lowest average sea temperature) are February and March (26°C).

  • The average daylight in December: 11h

Months with the longest days are May, June, July and August (Average daylight: 13h).
Months with shortest days are January, November and December (Average daylight: 11h).

  • The average sunshine in December: 7h

Months with most sunshine are March, April, May, June, July and August (Average sunshine: 8h).
Months with least sunshine are January, February, September, October, November and December (Average sunshine: 7).

  • The average UV index in December: 8

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).

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