Weathermondo.com
United StatesThe weather in September in Williamsburg
It's warm in September in Williamsburg with an average temperature of 28°C. Temperatures this month range from a low of 25°C to a high of 33°C. At night, you can expect temperatures between 17°C and 23°C.
Looking for sun? September isn’t a good month to be in Williamsburg. 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 Williamsburg, Virginia. 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 2014, Williamsburg reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 18°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 10°C to a highest value of 26°C.
Rainfall amount
In September, there is an average of 196 mm of precipitation, spread over 14 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
Daily weather in September for Williamsburg
Click on any day in September to get detailed info about the usual weather on that day in Williamsburg. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Williamsburg | New York | |
|---|---|---|
| Average temperature | 28°C | 27°C |
| Max. temperature | 33°C | 31°C |
| Min. temperature | 17°C | -5°C |
| Total precipitation | 196 mm | 57 mm |
| Rainy days | 14 days | 9 days |
Start of September
The month of September starts in Williamsburg with hot temps, averaging around 31°C during the day and nights around 22°C.
Mid September
By mid-September, daytime temps drop to around 29°C, with nights around 20°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Williamsburg is around 27°C, while nighttime temps are about 19°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Find affordable trips to Williamsburg
UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Check out the climate of Williamsburg for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Williamsburg, Virginia. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Williamsburg
Temperature in September in Williamsburg over the years
Precipitation charts
These charts show the average amount of precipitation in September in Williamsburg, Virginia. 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 Williamsburg
Total precipitation in September in Williamsburg over the years
Daily UV index in September in Williamsburg
This chart shows the average daily UV index in September in Williamsburg, 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 Williamsburg
Have you been to Williamsburg in September?
Share your weather experience in September in Williamsburg.
Average weather in Williamsburg by month
Click on a month below to see detailed weather info for Williamsburg. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.