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Lafayette Parish (Lafayette)
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United States weather

Weather in Lafayette Parish, Louisiana for September 2026

Your guide to Lafayette Parish weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Lafayette Parish at the beginning of September is 30.7 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 30.3 °F by the end of September.

    • Rain 🌧️

  • With an average of 3 rainy days, Lafayette Parish experiences minimal rainfall in September.

    • More

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Average dry days
27
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
32°/21°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Lafayette Parish Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Mist
29°
2
Overcast
31°
3
Mist
31°
4
Overcast
31°
5
Fog
33°
6
Fog
31°
7
Overcast
29°
8
Sunny
30°
9
Overcast
30°
10
Thundery outbreaks possible
32°
11
Partly cloudy
32°
12
Sunny
35°
13
Overcast
33°
14
Overcast
31°
15
Cloudy
32°
16
Fog
34°
17
Fog
33°
18
Overcast
32°
19
Fog
34°
20
Mist
34°
21
Fog
32°
22
Fog
32°
23
Fog
31°
24
Fog
31°
25
Light rain shower
29°
26
Fog
28°
27
Partly cloudy
30°
28
Partly cloudy
32°
29
Cloudy
31°
30
Overcast
31°

Temperatures trend during September in Lafayette Parish

See the weather trend as well as the moving average line

September weather in Lafayette Parish day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Mist
Mist
 29° /23° 0 mm 6
Sept. 2 Overcast
Overcast
 31° /23° 0 mm 7
Sept. 3 Mist
Mist
 31° /22° 0 mm 7
Sept. 4 Overcast
Overcast
 31° /22° 0 mm 7
Sept. 5 Fog
Fog
 33° /22° 0 mm 7
Sept. 6 Fog
Fog
 31° /22° 0 mm 7
Sept. 7 Overcast
Overcast
 29° /21° 0 mm 6
Sept. 8 Sunny
Sunny
 30° /14° 0 mm 8
Sept. 9 Overcast
Overcast
 30° /14° 0 mm 7
Sept. 10 Thundery outbreaks possible
Thundery outbreaks possible
 32° /21° 0 mm 7
Sept. 11 Partly cloudy
Partly cloudy
 32° /22° 0 mm 8
Sept. 12 Sunny
Sunny
 35° /21° 0 mm 9
Sept. 13 Overcast
Overcast
 33° /22° 0 mm 7
Sept. 14 Overcast
Overcast
 31° /21° 0 mm 7
Sept. 15 Cloudy
Cloudy
 32° /21° 0 mm 7
Sept. 16 Fog
Fog
 34° /21° 0 mm 7
Sept. 17 Fog
Fog
 33° /19° 0 mm 7
Sept. 18 Overcast
Overcast
 32° /22° 16.9 mm 7
Sept. 19 Fog
Fog
 34° /20° 0 mm 7
Sept. 20 Mist
Mist
 34° /21° 0 mm 7
Sept. 21 Fog
Fog
 32° /22° 0 mm 7
Sept. 22 Fog
Fog
 32° /20° 1 mm 7
Sept. 23 Fog
Fog
 31° /22° 0 mm 7
Sept. 24 Fog
Fog
 31° /23° 0 mm 7
Sept. 25 Light rain shower
Light rain shower
 29° /23° 5.9 mm 6
Sept. 26 Fog
Fog
 28° /20° 0 mm 6
Sept. 27 Partly cloudy
Partly cloudy
 30° /18° 0 mm 8
Sept. 28 Partly cloudy
Partly cloudy
 32° /16° 0 mm 8
Sept. 29 Cloudy
Cloudy
 31° /18° 0 mm 7
Sept. 30 Overcast
Overcast
 31° /20° 0 mm 7
Next
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 32° 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 💧

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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Lafayette
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Location coordinates 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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