Williamsburg (VA)
September
Weather in Williamsburg, Virginia for September 2026
Your guide to Williamsburg weather in September - trends and predictions
Coastal Flood Advisory - See hour by hour.
So far, September 2026 in Williamsburg shows a warmer trend than usual by 3.7 °F.
The forecast for the upcoming days in Williamsburg predicts a temperature of 22 °F, which is slightly above the historical average.
In general, the average temperature in Williamsburg at the beginning of September is 29.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.6 °F by the end of September.
Williamsburg experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 164.4 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
More
20
Dry days
10
Rainy days
0
Snow days
25°/18°
Temperatures
16 km/h
Avg max wind
76 %
Avg humidity
Williamsburg Weather September
Move between months or click on a day
Temperatures trend during September in Williamsburg
See the weather trend as well as the moving average line
September weather in Williamsburg day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy light rain | 31° /19° | 3.1 mm | 7 | |
| Sept. 2 |  Patchy rain possible | 29° /19° | 3.8 mm | 7 | |
| Sept. 3 |  Sunny | 29° /18° | 0 mm | 7 | |
| Sept. 4 | Light rain shower | 31° /20° | 0.1 mm | 8 | |
| Sept. 5 | Sunny | 30° /20° | 0.2 mm | 7 | |
| Sept. 6 | Light rain shower | 30° /20° | 0.7 mm | 7 | |
| Sept. 7 | Light rain shower | 26° /18° | 0.2 mm | 6 | |
| Sept. 8 | Sunny | 26° /14° | 0 mm | 7 | |
| Sept. 9 |  Overcast | 27° /14° | 0 mm | 7 | |
| Sept. 10 | Sunny | 29° /18° | 0.2 mm | 7 | |
| Sept. 11 | Sunny | 28° /18° | 4.2 mm | 5 | |
| Sept. 12 |  Partly cloudy | 27° /18° | 2.9 mm | 5 | |
| Sept. 13 | Patchy rain possible | 28° /19° | 3.4 mm | 5 | |
| Sept. 14 | Patchy rain possible | 28° /18° | 0 mm | 7 | |
| Sept. 15 | Partly cloudy | 27° /17° | 0 mm | 7 | |
| Sept. 16 |  Moderate or heavy rain shower | 24° /18° | 23.9 mm | 6 | |
| Sept. 17 | Moderate or heavy rain shower | 26° /18° | 31.9 mm | 6 | |
| Sept. 18 |  Fog | 26° /19° | 0.2 mm | 5 | |
| Sept. 19 | Overcast | 27° /18° | 1 mm | 5 | |
| Sept. 20 | Partly cloudy | 28° /19° | 0.1 mm | 6 | |
| Sept. 21 | Fog | 25° /18° | 1 mm | 4 | |
| Sept. 22 | Light rain shower | 26° /21° | 84 mm | 1.7 | |
| Sept. 23 | Moderate or heavy rain shower | 20° /18° | 78 mm | 1.1 | |
| Sept. 24 | Patchy rain possible | 19° /16° | 0.9 mm | 3.6 | |
| Sept. 25 | Overcast | 21° /12° | 0 mm | 5.7 | |
| Sept. 26 | Sunny | 22° /11° | 0 mm | 6 | |
| Sept. 27 | Overcast | 22° /14° | 0 mm | 6 | |
| Sept. 28 | Light rain shower | 17° /15° | 3.8 mm | 4 | |
| Sept. 29 | Patchy rain possible | 19° /15° | 1.7 mm | 4 | |
| Sept. 30 | Overcast | 24° /14° | 7.8 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Williamsburg in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Williamsburg forecast closer to your planned date for the most up-to-date weather information.
Change Month
Williamsburg in September - FAQ
What are the expected maximum and minimum temperatures in Williamsburg during September?
During September, expect a variety of temperatures with highs around 25° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Williamsburg during September?
Significant rainfall exceeding 164.4 mm is expected in Williamsburg during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Williamsburg during September?
The average wind speed in Williamsburg during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Williamsburg
Explore the daily rainfall trends and prepare for Williamsburgs September weather 💧
Typically, Williamsburg has 10 rainy days in September with a total of 164.4 mm of rainfall.
UV exposure in Williamsburg during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
More Williamsburg weather pages
You are here
Where is Williamsburg?Get accurate weather forecasts for Williamsburg, located at latitude 37.271 and longitude -76.707. Stay updated with localized weather information tailored for Williamsburg.
Found a mistake?
We appreciate your attention to details. Tell us here.