September weather forecast
Dominica

September in Dominica continues the trend set by August, remaining part of the wet season and the active Atlantic hurricane season. The island experiences rainfall similar to that of August, with precipitation levels hovering between 180mm (7.09") and 250mm (9.84"). The rainfall is usually scattered, allowing for bright spells of sunshine amidst the showers.

Dominica's major cities, including Roseau, Portsmouth, and Marigot, align with the overall island climate. Despite the increased rainfall, city exploration and cultural immersion remain enjoyable activities, thanks to the island's warm temperatures.

The average temperatures in September remain consistently warm, reflecting the tropical climate that defines Dominica. Daytime temperatures range between 27°C (80.6°F) and 32°C (89.6°F), offering a suitable environment for beach visits and water activities. Evening temperatures drop to 24°C (75.2°F), providing a comfortable coolness after a day in the tropical heat.

Compared to August, September maintains similar weather patterns with comparable rainfall and temperatures. As the island heads into October, the wet season and hurricane activity persist, but the rainfall begins to decrease, signaling the slow transition towards the dry season.

---

• Roseau - September »
  The months with the warmest seawater in Roseau are September and October, with an average sea temperature of 29°C (84.2°F). Weather conditions in September resemble those in August, with rain and sunshine co-existing harmoniously.
• Portsmouth - September »
  September is the month with the warmest seawater in Portsmouth, Dominica, with an average sea temperature of 29.4°C (84.9°F). September nudges ahead to claim the wettest month title in Portsmouth, accumulating an average rainfall of 269mm (10.59").
• Marigot - September »
  With an average sea temperature of 29.4°C (84.9°F), September is the month with the warmest seawater in Marigot, Dominica. April, August and September, with an average of 10.1h of sunshine, are months with the most sunshine in Marigot, Dominica.
• Berekua - September »
  September is the month with the warmest seawater in Berekua, Dominica, with an average sea temperature of 29.4°C (84.9°F). On the last day of September, in Berekua sunrise is at 05:54 and sunset at 17:55 AST.
• Mahaut - September »
  With an average high-temperature of 29°C (84.2°F) and an average low-temperature of 27.7°C (81.9°F), September is the warmest month in Mahaut, Dominica. September stands out as Mahaut's warmest month, with an average high-temperature of 29°C (84.2°F) and a low-temperature of 27.7°C (81.9°F).
• Wesley - September »
  September boasts the highest sea temperature of the year at a balmy 29.4°C (84.9°F), making it the warmest month for Wesley. With an average sea temperature of 29.4°C (84.9°F), September is the month with the warmest seawater in Wesley, Dominica.
• Soufriere - September »
  September, known for its average high temperature of 29°C (84.2°F) and an average low temperature of 27.7°C (81.9°F), is the warmest month in Soufriere. September is the month with the warmest seawater in Soufriere, with an average sea temperature of 29.4°C (84.9°F).
• Castle Bruce - September »
  With an average sea temperature of 29.4°C (84.9°F), September is the month with the warmest seawater in Castle Bruce, Dominica. September is the warmest month in Castle Bruce, with an average high-temperature of 28.9°C (84°F) and an average low-temperature of 27.6°C (81.7°F).
• La Plaine - September »
  La Plaine, Dominica, experiences a slight drop in temperature in September, sewing a welcome relief from the intense summer heat of August. The month with the warmest seawater in La Plaine is September, with an average sea temperature of 29.4°C (84.9°F).
• Pointe Michel - September »
  The month with the warmest seawater in Pointe Michel is September, with an average sea temperature of 29.4°C (84.9°F). In Pointe Michel, in September, the average water temperature is 29.4°C (84.9°F).
• Woodford Hill - September »
  The months with the most sunshine in Woodford Hill are April, August and September, with an average of 10.1h of sunshine. In Woodford Hill during September, the rain falls for 21.5 days and regularly aggregates up to 92mm (3.62") of precipitation.
• Colihaut - September »
  August and September, with an average of 10.1h of sunshine, are months with the most sunshine in Colihaut. The months with the most sunshine in Colihaut are August and September, with an average of 10.1h of sunshine.