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United StatesThe weather in September in Grand Coteau
It's hot in September in Grand Coteau with an average temperature of 31°C. Temperatures this month range from a low of 28°C to a high of 33°C. At night, you can expect temperatures between 17°C and 24°C.
Looking for sun? September isn’t a good month to be in Grand Coteau. 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 Grand Coteau, 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, Grand Coteau 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 8°C to a highest value of 27°C.
Rainfall amount
In September, there is an average of 125 mm of precipitation, spread over 16 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
Daily weather in September for Grand Coteau
Click on any day in September to get detailed info about the usual weather on that day in Grand Coteau. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Grand Coteau | New York | |
|---|---|---|
| Average temperature | 31°C | 27°C |
| Max. temperature | 33°C | 31°C |
| Min. temperature | 17°C | -5°C |
| Total precipitation | 125 mm | 57 mm |
| Rainy days | 16 days | 9 days |
Start of September
The month of September starts in Grand Coteau 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. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in Grand Coteau is around 31°C, while nighttime temps are about 20°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
The hurricane season in Grand Coteau runs from June to November.
Check out the climate of Grand Coteau for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Grand Coteau, Louisiana. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Grand Coteau
Temperature in September in Grand Coteau over the years
Precipitation charts
These charts show the average amount of precipitation in September in Grand Coteau, 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 Grand Coteau
Total precipitation in September in Grand Coteau over the years
Daily UV index in September in Grand Coteau
This chart shows the average daily UV index in September in Grand Coteau, 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 Grand Coteau
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Average weather in Grand Coteau by month
Click on a month below to see detailed weather info for Grand Coteau. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.