Weathermondo.com
United StatesThe weather in September in Jacksonville
It's hot in September in Jacksonville with an average temperature of 31°C. Temperatures this month range from a low of 29°C to a high of 32°C. At night, you can expect temperatures between 22°C and 26°C.
Looking for sun? September isn’t a good month to be in Jacksonville. 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 Jacksonville, Florida. 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 36°C in 2019, Jacksonville reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 22°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 16°C to a highest value of 27°C.
Rainfall amount
In September, there is an average of 188 mm of precipitation, spread over 19 days. The wind speed is around 4 Bft, mostly coming from the East.
Daily weather in September for Jacksonville
Click on any day in September to get detailed info about the usual weather on that day in Jacksonville. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Jacksonville | New York | |
|---|---|---|
| Average temperature | 31°C | 27°C |
| Max. temperature | 32°C | 31°C |
| Min. temperature | 22°C | -5°C |
| Total precipitation | 188 mm | 57 mm |
| Rainy days | 19 days | 9 days |
Start of September
The month of September starts in Jacksonville with hot temps, averaging around 32°C during the day and nights around 25°C.
Mid September
By mid-September, daytime temps stay steady at around 32°C, with nights around 25°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Jacksonville is around 31°C, while nighttime temps are about 23°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Find affordable trips to Jacksonville
UV index
The UV index is a maximum of 9 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 Jacksonville runs from June to November.
Check out the climate of Jacksonville for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Jacksonville, Florida. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Jacksonville
Temperature in September in Jacksonville over the years
Precipitation charts
These charts show the average amount of precipitation in September in Jacksonville, Florida. 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 Jacksonville
Total precipitation in September in Jacksonville over the years
Daily UV index in September in Jacksonville
This chart shows the average daily UV index in September in Jacksonville, 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 Jacksonville
Have you been to Jacksonville in September?
Share your weather experience in September in Jacksonville.
Average weather in Jacksonville by month
Click on a month below to see detailed weather info for Jacksonville. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.