Marigot Bay

Castries Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in Castries, Saint Lucia in August.

Planning a trip to Castries, Saint Lucia this August? Here's what you need to know about the weather:

What to Expect in Castries in August

Castries, Saint Lucia is a region in Saint Lucia. August in Castries generally has very warm temperatures, with high precipitation.

Temperatures

You can expect very warm maximum daytime temperatures of around 31°C (88°F) and nighttime temperatures around 26°C (79°F) in Soufrière. While the given temperatures for day and night are typical, there may be days that feel warmer. Make sure you're dressed in a way that keeps you cool and comfortable.

To explore the conditions in Castries, Saint Lucia in more detail, check the map below.

Precipitation

In August, precipitation varies across different areas. From high rainfall in Castries with an average of 114 mm (4.5 in) to high rainfall in Mon Repos with 142 mm (5.6 in).

Average sunshine

Many locations offer abundant sunshine during this month. For instance, Soufrière enjoys approximately 248 hours of sunlight, ideal for those seeking sunny weather.

Explore Castries by month

Pick a month to see the average temperature, rainfall and sunshine in Castries — and find the best time to visit. (based on Soufrière)

Best Places to Visit in Castries in August

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

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 Castries

What is the weather like in August for some of the most popular destinations in Castries, Saint Lucia?

Temperature range in Castries (August)

Precipitation variation in Castries (August)

Soufrière

In August Soufrière generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are tolerable that month.

July
August
September
Max temperature
30°C (86°F)
31°C (88°F)
31°C (88°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
248 hours
248 hours
238 hours
Monthly rainfall
102 mm (4 in)
121 mm (4.8 in)
128 mm (5 in)
Monthly rainy days
21 days
20 days
24 days
Weather conditions

Castries

In August Castries generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are tolerable that month.

July
August
September
Max temperature
31°C (88°F)
31°C (88°F)
31°C (88°F)
Min temperature
25°C (77°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
248 hours
248 hours
238 hours
Monthly rainfall
98 mm (3.9 in)
114 mm (4.5 in)
122 mm (4.8 in)
Monthly rainy days
21 days
20 days
24 days
Weather conditions

Marigot Bay

In August Marigot Bay generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are tolerable that month.

July
August
September
Max temperature
31°C (88°F)
31°C (88°F)
31°C (88°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
248 hours
248 hours
238 hours
Monthly rainfall
99 mm (3.9 in)
117 mm (4.6 in)
124 mm (4.9 in)
Monthly rainy days
21 days
20 days
24 days
Weather conditions

Mon Repos

In August Mon Repos generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are tolerable that month.

July
August
September
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
248 hours
248 hours
238 hours
Monthly rainfall
123 mm (4.8 in)
142 mm (5.6 in)
147 mm (5.8 in)
Monthly rainy days
21 days
20 days
23 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Castries, in Saint Lucia.

Popular cities in August

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

City Weather Day temp Night temp Rainfall
Soufrière 31°C (88°F) 26°C (79°F) 121 mm (4.8 in)
Castries 31°C (88°F) 26°C (79°F) 114 mm (4.5 in)
Marigot Bay 31°C (88°F) 26°C (79°F) 117 mm (4.6 in)
Mon Repos 30°C (86°F) 26°C (79°F) 142 mm (5.6 in)

Castries weather in August: frequently asked questions

What is the weather like in Castries, Saint Lucia in August?

Expect unpleasant weather across Castries, Saint Lucia in August. The popular destination of Soufrière averages 31°C (88°F) by day and 26°C (79°F) at night during this month.

What is the average temperature in Castries, Saint Lucia in August?

Average temperatures in Castries, Saint Lucia during August range from a nighttime low near 26°C (79°F) to a daytime high around 31°C (88°F) in Soufrière.

Does Castries, Saint Lucia get a lot of rain in August?

Castries, Saint Lucia sees substantial rainfall in August. Soufrière typically averages about 121 mm (4.8 in), a mix of wet and dry days, but bring an umbrella.

Is August a Good Time to Visit Castries, Saint Lucia?

Given the typically tolerable weather conditions in Soufrière, August may not be the ideal time to visit Castries, Saint Lucia.

On average, the best time to visit Castries, Saint Lucia is in January, February, March and December with generally perfect weather in Soufrière. In contrast, July, August, September, October and November tend to have unpleasant weather conditions.

Interested in more climate information?

We have much more information about the climate in Castries.

Weather and climate has detailed information for every country in the world. Are you going to Saint Lucia? Get detailed historical weather averages for many cities in Saint Lucia.

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.