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Weather in August in Dominica

Are you planning a trip to Dominica in August and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Dominica in August?

August 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 August, precipitation varies across different areas. From high rainfall in Portsmouth with an average of 117 mm to high rainfall in Castle Bruce with 140 mm. Meanwhile, Roseau enjoys close to 240 hours of sunlight. This means it's a great month if you prefer bright and sunny days.

For a closer look at August's conditions in Dominica, see the map below. For a more detailed look at Dominica's yearly weather, check out our Dominica climate page.

Where to go in Dominica in August

Find more information for the most popular destinations in the Dominica on the map below. Click on a destination dot for more detailes.

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

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

Roseau

In August 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
<<   July July
<<  
29°C 
26°C 
231 hours 
105 mm 
21 days 
29°C 
26°C 
240 hours 
126 mm 
21 days 
29°C 
26°C 
212 hours 
142 mm 
23 days 
Climate in Roseau

Portsmouth

In August 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
<<   July July
<<  
29°C 
26°C 
231 hours 
97 mm 
20 days 
29°C 
26°C 
240 hours 
117 mm 
20 days 
29°C 
26°C 
212 hours 
136 mm 
22 days 
Climate in Portsmouth

Calibishie

In August 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
<<   July July
<<  
29°C 
26°C 
231 hours 
110 mm 
20 days 
29°C 
26°C 
240 hours 
128 mm 
20 days 
29°C 
26°C 
212 hours 
145 mm 
22 days 
Climate in Calibishie

Marigot

In August 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
<<   July July
<<  
29°C 
26°C 
231 hours 
114 mm 
20 days 
29°C 
26°C 
240 hours 
133 mm 
20 days 
29°C 
26°C 
212 hours 
150 mm 
23 days 
Climate in Marigot

Pont Cassé

In August 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
<<   July July
<<  
29°C 
26°C 
231 hours 
111 mm 
21 days 
29°C 
26°C 
240 hours 
131 mm 
21 days 
29°C 
26°C 
212 hours 
147 mm 
23 days 
Climate in Pont Cassé

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

Is August the best 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. 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 travel conditions. Find out where to go with our weather planner.