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United StatesThe weather in September in St. Augustine
It's hot in September in St. Augustine with an average temperature of 30°C. Temperatures this month range from a low of 28°C to a high of 32°C. At night, you can expect temperatures between 22°C and 25°C.
Looking for sun? September isn’t a good month to be in St. Augustine. 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 St. Augustine, 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 35°C in 2018, St. Augustine reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 23°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 15°C to a highest value of 28°C.
Rainfall amount
In September, there is an average of 124 mm of precipitation, spread over 15 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in September for St. Augustine
Click on any day in September to get detailed info about the usual weather on that day in St. Augustine. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| St. Augustine | New York | |
|---|---|---|
| Average temperature | 30°C | 27°C |
| Max. temperature | 32°C | 31°C |
| Min. temperature | 22°C | -5°C |
| Total precipitation | 124 mm | 57 mm |
| Rainy days | 15 days | 9 days |
Start of September
The month of September starts in St. Augustine with hot temps, averaging around 31°C during the day and nights around 25°C.
Mid September
By mid-September, daytime temps stay steady at around 31°C, with nights around 25°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 St. Augustine is around 30°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.
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UV index
The UV index is a maximum of 6 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 St. Augustine runs from June to November.
Check out the climate of St. Augustine for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in St. Augustine, Florida. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in St. Augustine
Temperature in September in St. Augustine over the years
Precipitation charts
These charts show the average amount of precipitation in September in St. Augustine, 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 St. Augustine
Total precipitation in September in St. Augustine over the years
Daily UV index in September in St. Augustine
This chart shows the average daily UV index in September in St. Augustine, 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 St. Augustine
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Average weather in St. Augustine by month
Click on a month below to see detailed weather info for St. Augustine. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.