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United StatesThe weather in September in Port Allen
It's hot in September in Port Allen with an average temperature of 32°C. Temperatures this month range from a low of 30°C to a high of 33°C. At night, you can expect temperatures between 19°C and 24°C.
Looking for sun? September isn’t a good month to be in Port Allen. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Port Allen, Louisiana. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 38°C in 2023, Port Allen reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 22°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 10°C to a highest value of 28°C.
Rainfall amount
In September, there is an average of 133 mm of precipitation, spread over 15 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
Daily weather in September for Port Allen
Click on any day in September to get detailed info about the usual weather on that day in Port Allen. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Port Allen | New York | |
|---|---|---|
| Average temperature | 32°C | 27°C |
| Max. temperature | 33°C | 31°C |
| Min. temperature | 19°C | -5°C |
| Total precipitation | 133 mm | 57 mm |
| Rainy days | 15 days | 9 days |
Start of September
The month of September starts in Port Allen with hot temps, averaging around 33°C during the day and nights around 23°C.
Mid September
By mid-September, daytime temps drop to around 32°C, with nights around 22°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Port Allen is around 32°C, while nighttime temps are about 21°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
The hurricane season in Port Allen runs from June to November.
Check out the climate of Port Allen for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Port Allen, Louisiana. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Port Allen
Temperature in September in Port Allen over the years
Precipitation charts
These charts show the average amount of precipitation in September in Port Allen, Louisiana. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Port Allen
Total precipitation in September in Port Allen over the years
Daily UV index in September in Port Allen
This chart shows the average daily UV index in September in Port Allen, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Port Allen
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Average weather in Port Allen by month
Click on a month below to see detailed weather info for Port Allen. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.