Roseau
Dominica
Long-term weather forecast
Long-term weather forecast

October 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
October, like September, is a hot autumn month in Roseau, Dominica, with average temperature varying between 31°C (87.8°F) and 23°C (73.4°F).

Temperature

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

Rainfall

In Roseau, during 19 rainfall days, 239mm (9.4") of precipitation is typically accumulated. In Roseau, during the entire year, the rain falls for 218 days and collects up to 1996mm (78.6") of precipitation.

Sea temperature

Months with the warmest seawater are September and October, with an average sea temperature of 29°C (84.2°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In October, the average length of the day in Roseau is 11.8h.

Sunshine

Months with the least sunshine in Roseau are January, February, September through December, with an average of 7h of sunshine.

UV index

In October, the average daily maximum UV index in Roseau is 11. A UV Index value of 11, and more, symbolizes an extreme threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: In October, the average maximum UV index of 11 translate into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What are the warmest months in Roseau?

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

What is the temperature in October in Roseau?

The average high-temperature, in October, is 31°C (87.8°F), while the average low-temperature is 23°C (73.4°F).

How much does it rain in Roseau in October?

In October, in Roseau, Dominica, the rain falls for 19 days. Throughout October, 239mm (9.4") of precipitation is accumulated.

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).

What is the water temperature in October in Roseau?

In October, the average sea temperature in Roseau 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.

How many hours of daylight does Roseau have in October?

In Roseau, the average length of the day in October is 11.8h.

What is the month with the least sunshine in Roseau?

Months with the least sunshine in Roseau are January, February, September through December, with an average of 7h of sunshine.

How long on average sun shines in October in Roseau?

In October, the average sunshine is 7h.

How high is the UV index in October in Roseau?

In October, the average daily maximum UV index in Roseau is 11. A UV Index reading of 11, and higher, represents an ultimate hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in October - Roseau, Dominica
  • Average high temperature in October: 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 October: 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 October - Roseau, Dominica
  • Average rainfall in October: 239mm

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

Average sea temperature in October - Roseau, Dominica
  • Average sea temperature in October: 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 October / Average sunshine in October - Roseau, Dominica
  • Average daylight in October: 11.8h

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 October: 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 October - Roseau, Dominica
  • Average UV index in October: 11

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).