Roseau in august: average Weather, Temperature and Climate
Weather in Roseau in august 2025
The weather in Roseau in august comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout august
tolerable weather UV index: 7
Weather at 6am
85°F
Moderate rain at times
46% of time
32%
11%
9%
Weather at 12pm
85°F
Moderate rain at times
35% of time
30%
25%
11%
Weather at 6pm
85°F
Moderate rain at times
36% of time
34%
17%
10%
Weather at 3am
83°F
47%
30%
11%
8%
Evolution of daily average temperature and precipitation in Roseau in august
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Roseau in august.
The climate of Roseau in august is tolerable
The climate in august in Roseau is wet (with 8.1in of rainfall over 10 days). The weather is worst than the previous month since in july there is an average of 6.2in of rainfall over 9 days.
The climate quite pleasant in this city the month of august. Temperatures are up to 85°F. On average, the recorded minimum temperature is 83°F. Thus, the mean temperature average on this month of august in Roseau is 85°F. Note that seasonal normals are in contrast with those observed in Roseau in the month of august with a maximum record of 88°F in 2021 and a minimum record of 79°F in 2020. You can hope to have about 4 days with temperatures up to 86°F, or 13 of the month.
In august in Roseau, the days on average last 12:38. The sun rises at 05:51 and sunset is at 18:29.
With proper weather, the month of august is okay (but not the best) to go in that area in Dominica.
Roseau: another month?
If you can push the dates of your trip to Roseau forward, the month of september has a better weather forecast than august. more information
August: another location in Dominica?
If you want to go to Dominica in august, there are destinations with better weather than Roseau:
In august, Berekua, Portsmouth, Rosalie and Saint-Joseph (Dominica) have good weather.
Seasonal average climate and temperature of Roseau in august
Check below seasonal norms These datas are compiled from the weather statements earlier years of august.
| August | |||||
| Outside temperature | |||||
| Average temperature | 85°F | ||||
| Highest temperature | 85°F | ||||
| Lowest temperature | 83°F | ||||
| Highest record temperature | 88°F (2021) | ||||
| Lowest record temperature | 79°F (2020) | ||||
| Number of days at +86°F | 4 day(s) (13%) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 85°F | ||||
| Lowest sea temperature | 82°F | ||||
| Highest sea temperature | 86°F | ||||
| Wind | |||||
| Wind speed | 25km/h | ||||
| Wind temperature | 85°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 8.1in | ||||
| Number of days with rainfall | 10 day(s) (33%) | ||||
| Record daily rainfall | 3.4in (2012) | ||||
| Other climate data | |||||
| Humidity | 78% | ||||
| Visibility | 9.41km | ||||
| Cloud cover | 39% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 13 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:51 | ||||
| Time of sunset | 18:29 | ||||
| Length of day | 12:38 | ||||
| Our opinion about the weather in august | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last august?
Here is the day by day recorded weather in Roseau in august 2024:
81°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
81°F to 83°F
81°F to 85°F
81°F to 85°F
81°F to 83°F
83°F to 85°F
81°F to 85°F
83°F to 85°F
77°F to 83°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
81°F to 85°F
83°F to 85°F
83°F to 85°F
81°F to 85°F
83°F to 85°F
81°F to 85°F
81°F to 85°F
81°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
83°F to 85°F
81°F to 85°F
83°F to 85°F
Map: other cities in Dominica in august
Cities near Roseau:
| Mahaut in august | tolerable weather |
| Berekua in august | good weather |
| Saint-Joseph (Dominica) in august | good weather |
| Rosalie in august | good weather |
| Castle Bruce in august | tolerable weather |
| Marigot (Dominica) in august | tolerable weather |
| Portsmouth in august | good weather |
| Wesley in august | tolerable weather |
Click over cities on the map for information about the weather in august.
Roseau
perfect weather
good
tolerable
bad
very bad
Weather data for Roseau in august:
Weather data for Roseau for august are derived from an average of the weather forecast since 2009 in Roseau. There is a margin of error and these forecasts are to be considered as general information only. The weather in Roseau can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Roseau.