Lafayette Parish (Lafayette)
September
Weather in Lafayette Parish, Louisiana for September 2026
Your guide to Lafayette Parish weather in September - trends and predictions
So far, September 2026 in Lafayette Parish is slightly warmer than the historical average by 0.7 °F.
The forecast for the upcoming days in Lafayette Parish predicts a temperature of 35.4 °F, which is slightly above the historical average.
In general, the average temperature in Lafayette Parish at the beginning of September is 32.1 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 33 °F by the end of September.
With an average of 3 rainy days, Lafayette Parish experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
27
Dry days
3
Rainy days
0
Snow days
31°/21°
Temperatures
15 km/h
Avg max wind
72 %
Avg humidity
Lafayette Parish Weather September
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Temperatures trend during September in Lafayette Parish
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September weather in Lafayette Parish day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Mist | 31° /23° | 119.2 mm | 4 | |
| Sept. 2 |  Overcast | 32° /24° | 4.7 mm | 5 | |
| Sept. 3 | Mist | 33° /23° | 0 mm | 7 | |
| Sept. 4 | Overcast | 32° /23° | 57.8 mm | 8 | |
| Sept. 5 | Fog | 32° /22° | 37.8 mm | 5 | |
| Sept. 6 | Fog | 32° /22° | 0.1 mm | 9 | |
| Sept. 7 | Overcast | 33° /23° | 0.1 mm | 8 | |
| Sept. 8 |  Sunny | 32° /18° | 0.1 mm | 8 | |
| Sept. 9 | Overcast | 32° /18° | 0.2 mm | 7 | |
| Sept. 10 |  Thundery outbreaks possible | 32° /22° | 79.3 mm | 6 | |
| Sept. 11 |  Partly cloudy | 32° /22° | 3.3 mm | 9 | |
| Sept. 12 | Sunny | 35° /22° | 2.2 mm | 10 | |
| Sept. 13 | Overcast | 33° /23° | 0.3 mm | 9 | |
| Sept. 14 | Sunny | 35° /24° | 1.9 mm | 9.3 | |
| Sept. 15 | Sunny | 36° /24° | 0 mm | 9.2 | |
| Sept. 16 | Sunny | 36° /25° | 0.1 mm | 9 | |
| Sept. 17 | Sunny | 36° /23° | 0 mm | 9 | |
| Sept. 18 | Sunny | 37° /22° | 0 mm | 9 | |
| Sept. 19 | Sunny | 37° /24° | 0 mm | 9 | |
| Sept. 20 | Sunny | 38° /24° | 0.3 mm | 9 | |
| Sept. 21 | Sunny | 36° /22° | 0.1 mm | 9 | |
| Sept. 22 | Sunny | 34° /21° | 0 mm | 8 | |
| Sept. 23 | Sunny | 34° /19° | 0 mm | 8 | |
| Sept. 24 | Sunny | 34° /20° | 0 mm | 8 | |
| Sept. 25 | Sunny | 34° /18° | 0 mm | 8 | |
| Sept. 26 | Sunny | 35° /19° | 0 mm | 8 | |
| Sept. 27 | Sunny | 34° /20° | 0 mm | 8 | |
| Sept. 28 | Partly cloudy | 32° /16° | 0 mm | 8 | |
| Sept. 29 |  Cloudy | 31° /18° | 0 mm | 7 | |
| Sept. 30 | Overcast | 31° /20° | 0 mm | 7 | |
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Important Notice
Our weather forecast for Lafayette 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 Lafayette Parish forecast closer to your planned date for the most up-to-date weather information.
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Lafayette Parish in September - FAQ
What are the expected maximum and minimum temperatures in Lafayette Parish during September?
During September, expect a variety of temperatures with highs around 31° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in Lafayette Parish during September?
In September, Lafayette Parish can expect light to moderate rainfall, totaling 23.8 mm across approximately 3 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Lafayette Parish during September?
The average wind speed in Lafayette Parish during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Lafayette Parish
Explore the daily rainfall trends and prepare for Lafayette Parishs September weather 💧
Typically, Lafayette Parish has 3 rainy days in September with a total of 23.8 mm of rainfall.
UV exposure in Lafayette Parish during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Lafayette Parish?Get accurate weather forecasts for Lafayette Parish, located at latitude 30.224 and longitude -92.02. Stay updated with localized weather information tailored for Lafayette Parish.
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