September
Weather in Saint Lucia for September 2027
Your guide to Saint Lucia weather in September - trends and predictions
In general, the average temperature in Saint Lucia at the beginning of September is 29.7 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 29.7 °C by the end of September.
Saint Lucia in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 97.6 mm.
Is September a good time to visit Saint Lucia? check out the best time to travel to Saint Lucia page.
Temperatures
Rain 🌧️
More
12
Dry days
18
Rainy days
0
Snow days
30°/27°
Temperatures
21 km/h
Avg max wind
74 %
Avg humidity
Saint Lucia Weather September
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Temperatures trend during September in Saint Lucia
See the weather trend as well as the moving average line
September weather in Saint Lucia day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain | 29° /27° | 2.9 mm | 5 | |
| 2 Sept. | Light rain | 29° /27° | 5.7 mm | 6 | |
| 3 Sept. |  Light rain shower | 30° /27° | 1.7 mm | 8 | |
| 4 Sept. | Light rain | 30° /27° | 2.6 mm | 7 | |
| 5 Sept. | Light rain | 30° /27° | 3.7 mm | 6 | |
| 6 Sept. | Patchy rain possible | 30° /27° | 0.9 mm | 6 | |
| 7 Sept. | Patchy rain possible | 30° /27° | 1.5 mm | 7 | |
| 8 Sept. | Patchy rain possible | 29° /27° | 1.7 mm | 6 | |
| 9 Sept. | Light rain | 30° /27° | 4.4 mm | 6 | |
| 10 Sept. | Light rain | 30° /27° | 7.9 mm | 6 | |
| 11 Sept. | Light rain | 30° /27° | 3 mm | 7 | |
| 12 Sept. | Patchy rain possible | 30° /27° | 2.3 mm | 6 | |
| 13 Sept. | Light rain | 30° /27° | 4 mm | 6 | |
| 14 Sept. | Patchy rain possible | 30° /27° | 1.8 mm | 6 | |
| 15 Sept. | Light rain | 30° /27° | 3.5 mm | 6 | |
| 16 Sept. | Light rain | 29° /27° | 8.4 mm | 6 | |
| 17 Sept. | Patchy rain possible | 30° /27° | 2.2 mm | 6 | |
| 18 Sept. | Patchy rain possible | 30° /27° | 1.1 mm | 7 | |
| 19 Sept. | Patchy rain possible | 30° /27° | 2.1 mm | 7 | |
| 20 Sept. | Patchy rain possible | 31° /27° | 1.4 mm | 8 | |
| 21 Sept. |  Patchy light rain with thunder | 30° /27° | 1.7 mm | 9 | |
| 22 Sept. | Light rain | 30° /27° | 2.5 mm | 7 | |
| 23 Sept. | Light rain | 30° /27° | 2.7 mm | 7 | |
| 24 Sept. |  Moderate rain | 29° /27° | 11.3 mm | 6 | |
| 25 Sept. | Patchy rain possible | 30° /28° | 1.6 mm | 6 | |
| 26 Sept. | Light rain | 30° /27° | 6.1 mm | 6 | |
| 27 Sept. | Light rain | 30° /27° | 3.3 mm | 7 | |
| 28 Sept. | Patchy rain possible | 30° /26° | 2.3 mm | 6 | |
| 29 Sept. | Patchy rain possible | 30° /27° | 0.5 mm | 7 | |
| 30 Sept. | Light rain | 29° /26° | 2.9 mm | 6 | |
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Important Notice
Our weather forecast for Saint Lucia in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Saint Lucia forecast closer to your planned date for the most up-to-date weather information.
Change Month
Saint Lucia in September - FAQ
What are the expected maximum and minimum temperatures in Saint Lucia during September?
During September, expect a variety of temperatures with highs around 30° and lows near 27°, suitable for diverse activities and preferences.
How much rainfall should be expected in Saint Lucia during September?
Moderate rainfall is anticipated in Saint Lucia during September, with a total of 97.6 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Saint Lucia during September?
The average wind speed in Saint Lucia during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Saint Lucia
Explore the daily rainfall trends and prepare for Saint Lucias September weather 💧
Typically, Saint Lucia has 18 rainy days in September with a total of 97.6 mm of rainfall.
UV exposure in Saint Lucia during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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