Saint Lucia weather in September 2025
Saint Lucia weather in September 2025
Day
32 °C
Night
24 °C
Sea
29 °C
Precipitation
236 mm
in month
Rainy days
20 days
in month
Daylight
12 hours
average
Sunshine
7 hours
average
Humidity
83 %
Day
32 °C
Night
24 °C
Sea
29 °C
Precipitation
236 mm
in month
Rainy days
20 days
in month
Daylight
12 hours
average
Sunshine
7 hours
average
Humidity
83 %
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Weather overview and FAQs
Weather overview
In Saint Lucia in September, the average air temperature ranges from 32 °C (89 °F) during the day to 24 °C (74 °F) at night. There are 20 days of rain on average, where the rainfall is 236 mm (9.29 in).
Are there good conditions to visit in Saint Lucia in September?
September is a good month to visit Saint Lucia. The daily temperatures in this month reach pleasant 32 °C (89 °F). The seawater temperature reaches ideal 29 °C (84 °F). At night, temperatures hover around a pleasant 24 °C (74 °F). September is the wet season month in Saint Lucia, which means that there may be more frequent rains during your stay.
What is the rainfall intensity in Saint Lucia in September?
In September in Saint Lucia, there is 236 mm (9.29 in) rainfall, which means on average 8 mm (0.31 in) rainfall per day.
What is the temperature in Saint Lucia during the day in September?
The average daily temperature in Saint Lucia in September is 32 °C (89 °F). The great temperature for lying by the sea or pool and sunbathing, everywhere else you will probably be a bit hot. Don't forget to drink during the day, in these temperatures you should hydrate yourself a lot.
What is the sea temperature in September in Saint Lucia?
The temperature of the sea in Saint Lucia in September is 29 °C (84 °F). This temperature is someone's dream come true, while for someone it may no longer be ideal for the purpose of refreshment.
How many days of precipitation on average can I expect in Saint Lucia in September?
There are 20 days, which are rainy in September in Saint Lucia, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 4.6 days of the week, or in general - 66 % days.
What is the night temperature in September in Saint Lucia?
The average night temperature in Saint Lucia in September is 24 °C (74 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.
How many sunny hours can I expect in September in Saint Lucia?
There is an average length of sunshine of 7 hours per day in Saint Lucia in September.
How long is the day (from dawn till dusk) in Saint Lucia in September?
The length of daylight in Saint Lucia in September is 12 hours.
Is there a wet season in September in Saint Lucia?
Yes, in Saint Lucia in September there is a wet season with 20 days, when there is rain in a month.
Is Saint Lucia rainier in September than in August?
No, in Saint Lucia in September it does not rain more than in August.
Is it hot in Saint Lucia in September?
In Saint Lucia in September, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
How windy is it in September in Saint Lucia?
An average wind scale that can be expected in Saint Lucia in September is 4.
How humid is Saint Lucia in September?
Humidity in Saint Lucia in September is 83 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.