Dominica

Dominica Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Dominica in September.

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Roseau Portsmouth Calibishie Marigot

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 to Expect in Dominica in September

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

Temperatures

You can expect warm maximum daytime temperatures of around 29°C (84°F) and nighttime temperatures around 26°C (79°F) in Roseau.

For specific regional insights in Dominica, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Scotts Head Village with an average of 135 mm (5.3 in) to high rainfall in Castle Bruce with 156 mm (6.1 in).

Average sunshine

Several destinations enjoy plenty of sunshine this month. Roseau sees close to 212 hours of sunlight, making it great for sun lovers.

Explore Dominica by month

Pick a month to see the average temperature, rainfall and sunshine in Dominica - and find the best time to visit. (based on Roseau)

January27°C (81°F) February27°C (81°F) March27°C (81°F) April27°C (81°F) May28°C (82°F) June28°C (82°F) This monthJuly29°C (84°F) August29°C (84°F) September29°C (84°F) October29°C (84°F) November28°C (82°F) December28°C (82°F)
Best Time to Visit Dominica →

Best Places to Visit in Dominica in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Dominica.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Dominica

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

Temperature range in Dominica (September)

Precipitation variation in Dominica (September)

Roseau

In September Roseau generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are very good that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
29°C (84°F)
29°C (84°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
240 hours
212 hours
220 hours
Monthly rainfall
126 mm (5 in)
142 mm (5.6 in)
146 mm (5.7 in)
Monthly rainy days
21 days
23 days
19 days
Weather conditions
very good
very good
very good
Climate in Roseau →

Portsmouth

In September Portsmouth generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are very good that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
29°C (84°F)
29°C (84°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
240 hours
212 hours
220 hours
Monthly rainfall
117 mm (4.6 in)
136 mm (5.4 in)
137 mm (5.4 in)
Monthly rainy days
20 days
22 days
19 days
Weather conditions
very good
very good
very good
Climate in Portsmouth →

Calibishie

In September Calibishie generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are very good that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
29°C (84°F)
29°C (84°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
240 hours
212 hours
220 hours
Monthly rainfall
128 mm (5 in)
145 mm (5.7 in)
149 mm (5.9 in)
Monthly rainy days
20 days
22 days
19 days
Weather conditions
very good
very good
very good
Climate in Calibishie →

Marigot

In September Marigot generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are very good that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
29°C (84°F)
29°C (84°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
240 hours
212 hours
220 hours
Monthly rainfall
133 mm (5.2 in)
150 mm (5.9 in)
155 mm (6.1 in)
Monthly rainy days
20 days
23 days
19 days
Weather conditions
very good
very good
very good
Climate in Marigot →

Pont Cassé

In September Pont Cassé generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are very good that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
29°C (84°F)
29°C (84°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
240 hours
212 hours
220 hours
Monthly rainfall
131 mm (5.2 in)
147 mm (5.8 in)
152 mm (6 in)
Monthly rainy days
21 days
23 days
19 days
Weather conditions
very good
very good
very good
Climate in Pont Cassé →

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

Popular cities in September

Day & night temperatures, rainfall and average weather in Dominica in September.

City Weather Day temp Night temp Rainfall
Roseau 29°C (84°F) 26°C (79°F) 142 mm (5.6 in)
Portsmouth 29°C (84°F) 26°C (79°F) 136 mm (5.4 in)
Calibishie 29°C (84°F) 26°C (79°F) 145 mm (5.7 in)
Marigot 29°C (84°F) 26°C (79°F) 150 mm (5.9 in)
Pont Cassé 29°C (84°F) 26°C (79°F) 147 mm (5.8 in)
Castle Bruce 29°C (84°F) 26°C (79°F) 156 mm (6.1 in)

Dominica weather in September: frequently asked questions

What is the weather like in Dominica in September?

September in Dominica brings very good weather. In Roseau, daytime temperatures are typically around 29°C (84°F) and nighttime lows hover near 26°C (79°F).

What is the average temperature in Dominica in September?

Average temperatures in Dominica during September range from a nighttime low near 26°C (79°F) to a daytime high around 29°C (84°F) in Roseau.

Does Dominica get a lot of rain in September?

Yes, September tends to be a wetter month in Dominica. Average rainfall in Roseau sits around 142 mm (5.6 in).

Is September a Good Time to Visit Dominica?

Given the typically very good 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 excellent weather in Roseau.

Interested in more climate information?

We have much more information about the climate in Dominica.

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 travel conditions. Find out where to go with our weather planner.