Dominica

Dominica Weather in August

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

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Roseau Portsmouth Calibishie Marigot

Planning a journey to Dominica this August and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Dominica in August

August 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 August, precipitation varies across different areas. From high rainfall in Portsmouth with an average of 117 mm (4.6 in) to high rainfall in Castle Bruce with 140 mm (5.5 in).

Average sunshine

August brings good sunshine to many areas. Roseau sees around 240 hours of sunlight, great for visitors looking for bright days.

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 August

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 August for some of the most popular destinations in Dominica?

Temperature range in Dominica (August)

Precipitation variation in Dominica (August)

Roseau

In August 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 pleasant that month.

« July
August
September »
July
August
September
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
231 hours
240 hours
212 hours
Monthly rainfall
105 mm (4.1 in)
126 mm (5 in)
142 mm (5.6 in)
Monthly rainy days
21 days
21 days
23 days
Weather conditions
pleasant
pleasant
pleasant
Climate in Roseau →

Portsmouth

In August 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 pleasant that month.

« July
August
September »
July
August
September
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
231 hours
240 hours
212 hours
Monthly rainfall
97 mm (3.8 in)
117 mm (4.6 in)
136 mm (5.4 in)
Monthly rainy days
20 days
20 days
22 days
Weather conditions
perfect
pleasant
pleasant
Climate in Portsmouth →

Calibishie

In August 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 pleasant that month.

« July
August
September »
July
August
September
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
231 hours
240 hours
212 hours
Monthly rainfall
110 mm (4.3 in)
128 mm (5 in)
145 mm (5.7 in)
Monthly rainy days
20 days
20 days
22 days
Weather conditions
pleasant
pleasant
pleasant
Climate in Calibishie →

Marigot

In August 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 pleasant that month.

« July
August
September »
July
August
September
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
231 hours
240 hours
212 hours
Monthly rainfall
114 mm (4.5 in)
133 mm (5.2 in)
150 mm (5.9 in)
Monthly rainy days
20 days
20 days
23 days
Weather conditions
pleasant
pleasant
pleasant
Climate in Marigot →

Pont Cassé

In August 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 pleasant that month.

« July
August
September »
July
August
September
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
231 hours
240 hours
212 hours
Monthly rainfall
111 mm (4.4 in)
131 mm (5.2 in)
147 mm (5.8 in)
Monthly rainy days
21 days
21 days
23 days
Weather conditions
pleasant
pleasant
pleasant
Climate in Pont Cassé →

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

Popular cities in August

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

City Weather Day temp Night temp Rainfall
Roseau 29°C (84°F) 26°C (79°F) 126 mm (5 in)
Portsmouth 29°C (84°F) 26°C (79°F) 117 mm (4.6 in)
Calibishie 29°C (84°F) 26°C (79°F) 128 mm (5 in)
Marigot 29°C (84°F) 26°C (79°F) 133 mm (5.2 in)
Pont Cassé 29°C (84°F) 26°C (79°F) 131 mm (5.2 in)
Castle Bruce 29°C (84°F) 26°C (79°F) 140 mm (5.5 in)

Dominica weather in August: frequently asked questions

What is the weather like in Dominica in August?

In August, Dominica generally has pleasant weather conditions. Roseau sees daytime temperatures near 29°C (84°F), with nights cooling to roughly 26°C (79°F).

What is the average temperature in Dominica in August?

Roseau averages a daytime maximum of 29°C (84°F) in August, with overnight lows close to 26°C (79°F).

Does Dominica get a lot of rain in August?

Yes, August tends to be a wetter month in Dominica. Average rainfall in Roseau sits around 126 mm (5 in).

Is August a Good Time to Visit Dominica?

In our opinion, August may not be the ideal time to visit Dominica due to the typically pleasant weather in Roseau.

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.

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.