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Dominica weather in September

Thinking about venturing to Dominica this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What is the weather like in Dominica in September?

September in Dominica generally has warm temperatures, with high precipitation.

You can expect warm maximum daytime temperatures of around 29°C and nighttime temperatures around 26°C in Roseau.

In September, precipitation varies across different areas. From high rainfall in Scotts Head Village with an average of 135 mm to high rainfall in Castle Bruce with 156 mm. Meanwhile, Roseau enjoys close to 212 hours of sunlight. This means it's a great month if you prefer bright and sunny days.

For specific regional insights in Dominica for September, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Dominica climate page.

Where to go in Dominica in September

Find the average weather conditions in September for the most popular destinations in Dominica on the map below. Click on a destination dot for more detailed information.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Dominica

What is the weather like in September for the 5 most popular destinations in Dominica?

Average weather in Roseau

In September Roseau generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 26°C and high monthly rainfall. So on average the conditions are pleasant that month.

Roseau
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
29°C 
26°C 
240 hours 
126 mm 
21 days 
29°C 
26°C 
212 hours 
142 mm 
23 days 
October   >> October
>>  
29°C 
26°C 
220 hours 
146 mm 
19 days 
Climate in Roseau

Average weather in Portsmouth

In September Portsmouth generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 26°C and high monthly rainfall. So on average the conditions are pleasant that month.

Portsmouth
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
29°C 
26°C 
240 hours 
117 mm 
20 days 
29°C 
26°C 
212 hours 
136 mm 
22 days 
October   >> October
>>  
29°C 
26°C 
220 hours 
137 mm 
19 days 
Climate in Portsmouth

Average weather in Calibishie

In September Calibishie generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 26°C and high monthly rainfall. So on average the conditions are pleasant that month.

Calibishie
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
29°C 
26°C 
240 hours 
128 mm 
20 days 
29°C 
26°C 
212 hours 
145 mm 
22 days 
October   >> October
>>  
29°C 
26°C 
220 hours 
149 mm 
19 days 
Climate in Calibishie

Average weather in Marigot

In September Marigot generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 26°C and high monthly rainfall. So on average the conditions are pleasant that month.

Marigot
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
29°C 
26°C 
240 hours 
133 mm 
20 days 
29°C 
26°C 
212 hours 
150 mm 
23 days 
October   >> October
>>  
29°C 
26°C 
220 hours 
155 mm 
19 days 
Climate in Marigot

Average weather in Pont Cassé

In September Pont Cassé generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 26°C and high monthly rainfall. So on average the conditions are pleasant that month.

Pont Cassé
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
29°C 
26°C 
240 hours 
131 mm 
21 days 
29°C 
26°C 
212 hours 
147 mm 
23 days 
October   >> October
>>  
29°C 
26°C 
220 hours 
152 mm 
19 days 
Climate in Pont Cassé

Is your destination not in the list? Have a look at other destinations in Dominica.

Is September the best time to visit Dominica?

Given the typically pleasant weather conditions in Roseau, September may not be the ideal time to visit Dominica.

Generally speaking, the best visiting conditions can be found in January, February, March, April, May, June and December offering mostly perfect weather in Roseau.

Interested in more climate information?

We have much more information about the climate in Dominica. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to Dominica? Get detailed historical weather averages for many cities in Dominica.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.