Calcasieu Parish (Lake Charles)
September
Weather in Calcasieu Parish, Louisiana for September 2026
Your guide to Calcasieu Parish weather in September - trends and predictions
So far, September 2026 in Calcasieu Parish is slightly warmer than the historical average by 2 °F.
The forecast for the coming days of September 2026 predicts a temperature of 35.2 °F , which is warmer than usual.
In general, the average temperature in Calcasieu Parish at the beginning of September is 30.6 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 33.1 °F by the end of September.
The climate of Calcasieu Parish in September is notably wet, with an average of 12 rainy days, and a total of 174.5 mm of precipitation.
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Temperatures
Rain 🌧️
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18
Dry days
12
Rainy days
0
Snow days
30°/22°
Temperatures
15 km/h
Avg max wind
74 %
Avg humidity
Calcasieu Parish Weather September
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Temperatures trend during September in Calcasieu Parish
See the weather trend as well as the moving average line
September weather in Calcasieu Parish day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Moderate or heavy rain shower | 28° /23° | 66.5 mm | 5 | |
| Sept. 2 |  Patchy rain possible | 31° /23° | 115.3 mm | 5 | |
| Sept. 3 |  Cloudy | 32° /24° | 69 mm | 5 | |
| Sept. 4 | Moderate or heavy rain shower | 32° /23° | 6.5 mm | 8 | |
| Sept. 5 | Moderate or heavy rain shower | 29° /23° | 8.4 mm | 5 | |
| Sept. 6 | Moderate or heavy rain shower | 31° /22° | 4.8 mm | 8 | |
| Sept. 7 |  Partly cloudy | 31° /22° | 0 mm | 8 | |
| Sept. 8 |  Sunny | 31° /20° | 1.8 mm | 8 | |
| Sept. 9 | Sunny | 31° /19° | 0.6 mm | 7 | |
| Sept. 10 | Moderate rain at times | 32° /21° | 9.4 mm | 7 | |
| Sept. 11 | Moderate or heavy rain shower | 29° /22° | 42.7 mm | 7 | |
| Sept. 12 | Patchy rain possible | 31° /22° | 9.1 mm | 7 | |
| Sept. 13 | Sunny | 32° /21° | 2.3 mm | 8 | |
| Sept. 14 | Sunny | 36° /25° | 0.2 mm | 9.3 | |
| Sept. 15 | Sunny | 35° /24° | 0.1 mm | 9.3 | |
| Sept. 16 |  Overcast | 35° /25° | 0 mm | 9.1 | |
| Sept. 17 | Sunny | 36° /23° | 0 mm | 9 | |
| Sept. 18 | Sunny | 37° /23° | 0 mm | 9 | |
| Sept. 19 | Sunny | 37° /24° | 0 mm | 9 | |
| Sept. 20 | Sunny | 37° /24° | 0 mm | 9 | |
| Sept. 21 | Sunny | 36° /24° | 0 mm | 8 | |
| Sept. 22 | Sunny | 34° /21° | 0 mm | 8 | |
| Sept. 23 | Sunny | 34° /17° | 0 mm | 8 | |
| Sept. 24 | Sunny | 34° /19° | 0 mm | 8 | |
| Sept. 25 | Sunny | 34° /18° | 0 mm | 8 | |
| Sept. 26 | Sunny | 34° /19° | 0 mm | 8 | |
| Sept. 27 | Overcast | 34° /21° | 0 mm | 8 | |
| Sept. 28 | Sunny | 32° /19° | 0 mm | 8 | |
| Sept. 29 | Sunny | 32° /20° | 0 mm | 8 | |
| Sept. 30 | Sunny | 32° /21° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Calcasieu Parish 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 Calcasieu Parish forecast closer to your planned date for the most up-to-date weather information.
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Calcasieu Parish in September - FAQ
What are the expected maximum and minimum temperatures in Calcasieu Parish during September?
During September, expect a variety of temperatures with highs around 30° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Calcasieu Parish during September?
Significant rainfall exceeding 174.5 mm is expected in Calcasieu Parish during September, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Calcasieu Parish during September?
The average wind speed in Calcasieu Parish during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Calcasieu Parish
Explore the daily rainfall trends and prepare for Calcasieu Parishs September weather 💧
Typically, Calcasieu Parish has 12 rainy days in September with a total of 174.5 mm of rainfall.
UV exposure in Calcasieu Parish during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Calcasieu Parish?Get accurate weather forecasts for Calcasieu Parish, located at latitude 30.213 and longitude -93.204. Stay updated with localized weather information tailored for Calcasieu Parish.
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