September weather forecast and climate
Roseau, Dominica

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

What are the warmest months in Roseau?

May through October, with an average high-temperature of 31°C (87.8°F), are warmest months in Roseau, Dominica.

What is the temperature in September in Roseau?

In Roseau, in September, the average high-temperature is 31°C (87.8°F), and the average low-temperature is 23°C (73.4°F).

How much does it rain in Roseau in September?

In Roseau, Dominica, in September, it is raining for 23 days, with typically 250mm (9.8") of accumulated precipitation.

What are the months with the warmest sea water in Roseau?

Months with the warmest seawater in Roseau are September and October, with an average sea temperature of 29°C (84.2°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the water temperature in September in Roseau?

In Roseau, Dominica, in September, the average water temperature is 29°C (84.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What are the months with the highest UV index in Roseau?

Months with the highest UV index in Roseau are March through September, with an average UV index of 12.

What is the average UV index in September in Roseau?

In September, the average UV index is 12.
Average temperature in September - Roseau, Dominica
  • Average high temperature in September: 31°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).

  • Average low temperature in September: 23°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).

Average rainfall in September - Roseau, Dominica
  • Average rainfall in September: 250mm

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

Average rainfall days in September - Roseau, Dominica
  • Average rainfall days in September: 23 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).

Average sea temperature in September - Roseau, Dominica
  • Average sea temperature in September: 29°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).

Average daylight in September / Average sunshine in September - Roseau, Dominica
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 13h).
The month with shortest days is December (Average daylight: 11.2h).

  • Average sunshine in September: 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).

Average UV index in September - Roseau, Dominica
  • Average UV index in September: 12

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).

deutscheenglishespañolрусский中文