Saint Lucia in august: average Weather, Temperature and Climate, Where to go?
Weather in Saint Lucia in august 2025
In this section, you have access to the weather forecast for the month of august for most popular cities in Saint Lucia. These forecasts are probabilities for august from weather reports for many years. The percentage indicates the possibility of having the weather indicated.
Average weather in august in Castries
tolerable weather UV index: 7
Weather at 6am
85°F
Moderate rain at times
48% of time
34%
8%
5%
Weather at 12pm
86°F
Moderate rain at times
57% of time
18%
14%
12%
Weather at 6pm
83°F
Moderate rain at times
53% of time
22%
12%
10%
Weather at 3am
83°F
46%
32%
10%
8%
Where to go in Saint Lucia in august?
Where to go in Saint Lucia in august: destination map
perfect weather
good
tolerable
bad
very bad
Where should you go in Saint Lucia in august when it comes to the weather?
Remember:
The climate in Saint Lucia in august is tolerable across the board.
August is not the best month to visit Saint Lucia. The weather everywhere is quite correct: in Dennery, Gros Islet, Anse-La-Raye, Vieux Fort, Soufrière, Choiseul, Laborie, Micoud and Castries. The sun is not there all the time and you risk you to be soaked by rain regularly. Nonetheless, if you don't plan a beach and sun travel but rather sightseeing, this climate could be appropriate. In addition, there are surely fewer tourists during this period.
Climate in Saint Lucia in august
Climate in Castries in august
In august, the mean temperature in Castries is 86°F (maximum temperature is 86°F and minimum temperature is 85°F). The climate is very warm there in the month of august. With 6.6in over 10 days, rain may occur for your trip. But this is pretty reasonably and it will not be continuous.
With a correct climate, the month of august is okay (but not the best time) for traveling there.
| August | |||
| Average temperature | 86°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 85°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 6.6in | ||
| Number of days with rainfall | 10 day(s) (32%) | ||
| Humidity | 76% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 44% | ||
| Length of day | 12:35 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Soufrière in august
In august, maximum temperature is 86°F and minimum temperature is 83°F (for an average temperature of 85°F). The climate is very hot there in this month. With 6.1in over 10 days, rainfall can happen during your trip. But this is reasonably and you will not be too bothered by it.
With a correct weather, august is okay (but not the best time) for traveling in Soufrière.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 6.1in | ||
| Number of days with rainfall | 10 day(s) (32%) | ||
| Humidity | 77% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 40% | ||
| Length of day | 12:35 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Anse-La-Raye in august
In august, maximum temperature is 86°F and minimum temperature is 85°F (for an average temperature of 86°F). The climate is very warm in this city in the month of august. With 6.6in over 10 days, rainfall can happen throughout your trip. But this is reasonably and it will not be continuous.
With a correct climate, august is okay (but not good time) for traveling there in Saint Lucia.
| August | |||
| Average temperature | 86°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 85°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 6.6in | ||
| Number of days with rainfall | 10 day(s) (32%) | ||
| Humidity | 76% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 44% | ||
| Length of day | 12:35 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Choiseul in august
In the month of august, maximum temperature is 86°F and minimum temperature is 83°F (for an average temperature of 85°F). The climate is very warm in this location in august. With 6.1in over 10 days, you risk getting wet slightly throughout your vacations. But this is pretty reasonably and you will not be too bothered by it.
With a correct climate, august is okay (but not the best month) for traveling in that area.
| August | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 6.1in | ||
| Number of days with rainfall | 10 day(s) (32%) | ||
| Humidity | 77% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 40% | ||
| Length of day | 12:35 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Dennery in august
In august, maximum temperature is 86°F and minimum temperature is 85°F (for an average temperature of 86°F). The climate is very warm there in this month. With 6.6in over 10 days, rainfall can happen for your vacations. But this is moderate and it will not be continuous.
With proper weather, the month of august is okay (but not good time) for traveling in this city in Saint Lucia.
| August | |||
| Average temperature | 86°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 85°F | ||
| Sea temperature | 85°F | ||
| Rainfall | 6.6in | ||
| Number of days with rainfall | 10 day(s) (32%) | ||
| Humidity | 76% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 44% | ||
| Length of day | 12:34 | ||
| Our opinion at whereandwhen.net | tolerable |
All cities in Saint Lucia in august
| Castries in august | tolerable weather |
| Soufrière in august | tolerable weather |
| Anse-La-Raye in august | tolerable weather |
| Choiseul in august | tolerable weather |
| Dennery in august | tolerable weather |
| Gros Islet in august | tolerable weather |
| Laborie in august | tolerable weather |
| Micoud in august | tolerable weather |
| Vieux Fort in august | tolerable weather |
| Praslin Bay in august | tolerable weather |
Weather data for Saint Lucia in august:
Weather data for Saint Lucia in august is derived from an average of the weather forecast since 2009 in Saint Lucia. There is a margin of error and these forecasts are to be considered as general information only. The weather in Saint Lucia can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Saint Lucia.