August weather forecast
Castries City, Saint Lucia

englishespañol中文
Share
The beautiful city of Castries, Saint Lucia
The beautiful city of Castries, Saint Lucia

Weather in August

The month of August brings a gradual decrease in rainfall to Castries City, with the metric reaching 263mm (10.35"). Alongside a retreat in heavy rains, the sun starts taking a central stage, paving the way for more outdoor activities. The departure of rainy skies and arrival of radiant sunlight creates a stunning spectrum in the City's sky. Despite a decline in rainfall, the temperatures stay warm, amplifying the tropical feel in Castries City. The evenings offer an enchanting view of sunset paired with a cool breeze coming in from the sea.

Temperature

May through October, when the average high-temperature reaches 30°C (86°F), are the warmest months.

Rainfall

In August, the rain falls for 20 days. Throughout August, 263mm (10.35") of precipitation is accumulated. Throughout the year, in Castries City, there are 208 rainfall days, and 2377mm (93.58") of precipitation is accumulated.

Sea temperature

In Castries City, the average seawater temperature in August is 28°C (82.4°F).
Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

The average length of the day in August is 12h and 35min.
On the first day of August, sunrise is at 05:48 and sunset at 18:32. On the last day of the month, sunrise is at 05:52 and sunset at 18:15 AST.

Sunshine

The months with the most sunshine are January through September, November and December, with an average of 8h of sunshine.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index of 11, and more, symbolizes an extreme threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the UV index of 12 transforms into the following advice:
Execute all vital precautions. Preventing sun damage is of utmost importance. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. After a swim or outdoor exercise, one should liberally reapply broad-spectrum sunscreen with a sun protection factor of 30 or higher. Notice! The reflection of water and sand increases the UV radiation significantly.
[Resources]

Frequently asked questions

What are the warmest months in Castries City?

The warmest period in Castries City falls in May through October, when the average high-temperature reaches 30°C (86°F).

How hot is it in Castries City in August?

Castries City in August has an average high-temperature of 30°C (86°F) and an average low-temperature of 24°C (75.2°F).

How much does it rain in Castries City in August?

In August, in Castries City, Saint Lucia, the rain falls for 20 days. Throughout August, 263mm (10.35") of precipitation is accumulated.

What is the sea water temperature in August in Castries City?

In Castries City, in August, the average water temperature is 28°C (82.4°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in August in Castries City?

The average day length in August in Castries City, Saint Lucia, is 12h and 35min.

What time are sunrise and sunset in August in Castries City?

On the first day of August in Castries City, Saint Lucia, sunrise is at 05:48 and sunset at 18:32. On the last day of the month, sunrise is at 05:52 and sunset at 18:15 AST.

What is the month with the most sunshine in Castries City?

January through September, November and December, with an average of 8h of sunshine, are months with the most sunshine in Castries City, Saint Lucia.

How many hours of sunshine does Castries City have in August?

The average sunshine duration in August in Castries City, Saint Lucia, is 8h.

When is the highest UV index in Castries City?

The months with the highest UV index are March through September, with an average maximum UV index of 12.

How high is the UV index in August in Castries City?

In Castries City, Saint Lucia, the average daily maximum UV index in August is 12. A UV Index estimate of 11, and higher, represents an extreme health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in August
Castries City, Saint Lucia

Average temperature in August - Castries City, Saint Lucia
  • Average high temperature in August: 30°C

The warmest months (with the highest average high temperature) are May, June, July, August, September and October (30°C).
The months with the lowest average high temperature are January, February, March and December (28°C).

  • Average low temperature in August: 24°C

The months with the highest average low temperature are May, June, July, August and September (24°C).
The coldest months (with the lowest average low temperature) are January, February, March and December (22°C).

[Resources]

Average rainfall in August
Castries City, Saint Lucia

Average rainfall in August - Castries City, Saint Lucia
  • Average rainfall in August: 263mm

The wettest month (with the highest rainfall) is October (303mm).
The driest month (with the least rainfall) is March (99mm).

[Resources]

Average rainfall days in August
Castries City, Saint Lucia

Average rainfall days in August - Castries City, Saint Lucia
  • Average rainfall days in August: 20 days

The month with the highest number of rainy days is September (24 days).
The month with the least rainy days is April (11 days).

[Resources]

Average sea temperature in August
Castries City, Saint Lucia

Average sea temperature in August - Castries City, Saint Lucia
  • Average sea temperature in August: 28°C

The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are February and March (26°C).

[Resources]

Average daylight in August /
Average sunshine in August
Castries City, Saint Lucia

Average daylight in August / Average sunshine in August - Castries City, Saint Lucia
  • Average daylight in August: 12h and 4min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in August: 8h

The months with the most sunshine are January, February, March, April, May, June, July, August, September, November and December (Average sunshine: 8h).
The month with the least sunshine is October (Average sunshine: 7h).

[Resources]

Average UV index in August
Castries City, Saint Lucia

Average UV index in August - Castries City, Saint Lucia
  • Average UV index in August: 12

The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).

[Resources]

Castries City, Saint Lucia

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location