Alexandria (VA)
September
Weather in Alexandria, Virginia for September 2026
Your guide to Alexandria weather in September - trends and predictions
So far, September 2026 in Alexandria shows a warmer trend than usual by 3.1 °F.
The forecast for the next days in Alexandria predicts temperatures to be around 29 °F, close to the historical average.
In general, the average temperature in Alexandria at the beginning of September is 30.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.9 °F by the end of September.
Alexandria in September brings notable rainfall, with an average of 20 rainy days and a total precipitation of 201.1 mm.
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Temperatures
Rain 🌧️
More
10
Dry days
20
Rainy days
0
Snow days
26°/17°
Temperatures
13 km/h
Avg max wind
70 %
Avg humidity
Alexandria Weather September
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Temperatures trend during September in Alexandria
See the weather trend as well as the moving average line
September weather in Alexandria day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 31° /18° | 0.2 mm | 8 | |
| Sept. 2 | Sunny | 29° /18° | 1.5 mm | 7 | |
| Sept. 3 | Sunny | 31° /17° | 0 mm | 7 | |
| Sept. 4 |  Patchy rain possible | 32° /18° | 1.3 mm | 7 | |
| Sept. 5 | Sunny | 32° /19° | 2.1 mm | 7 | |
| Sept. 6 | Sunny | 31° /19° | 6 mm | 8 | |
| Sept. 7 |  Thundery outbreaks possible | 28° /18° | 6.3 mm | 7 | |
| Sept. 8 | Sunny | 29° /15° | 1.8 mm | 7 | |
| Sept. 9 | Light rain shower | 27° /15° | 2.6 mm | 7 | |
| Sept. 10 | Sunny | 31° /21° | 3 mm | 7.4 | |
| Sept. 11 |  Overcast | 29° /20° | 3.5 mm | 5.9 | |
| Sept. 12 | Light rain shower | 28° /21° | 15 mm | 4.3 | |
| Sept. 13 | Overcast | 31° /21° | 0.4 mm | 7 | |
| Sept. 14 | Overcast | 33° /22° | 0 mm | 8 | |
| Sept. 15 | Sunny | 33° /21° | 0 mm | 8 | |
| Sept. 16 | Sunny | 35° /23° | 8 mm | 8 | |
| Sept. 17 | Overcast | 24° /18° | 7.6 mm | 5 | |
| Sept. 18 | Sunny | 33° /22° | 3 mm | 8 | |
| Sept. 19 | Sunny | 23° /16° | 2.4 mm | 6 | |
| Sept. 20 | Sunny | 23° /14° | 0 mm | 6 | |
| Sept. 21 | Sunny | 24° /13° | 0 mm | 6 | |
| Sept. 22 | Sunny | 26° /15° | 0 mm | 7 | |
| Sept. 23 |  Heavy rain | 23° /16° | 37.9 mm | 5 | |
| Sept. 24 | Light rain shower | 22° /18° | 31.7 mm | 5 | |
| Sept. 25 | Patchy rain possible | 23° /18° | 14.7 mm | 5 | |
| Sept. 26 |  Mist | 23° /19° | 5.4 mm | 5 | |
| Sept. 27 | Patchy rain possible | 22° /17° | 13 mm | 5 | |
| Sept. 28 | Overcast | 23° /16° | 2.9 mm | 5 | |
| Sept. 29 | Fog | 24° /17° | 0.8 mm | 5 | |
| Sept. 30 | Patchy rain possible | 23° /17° | 0.1 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Alexandria 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 Alexandria forecast closer to your planned date for the most up-to-date weather information.
Change Month
Alexandria in September - FAQ
What are the expected maximum and minimum temperatures in Alexandria during September?
During September, expect a variety of temperatures with highs around 26° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Alexandria during September?
Significant rainfall exceeding 201.1 mm is expected in Alexandria during September, occurring over more than 20 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Alexandria during September?
The average wind speed in Alexandria during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Alexandria
Explore the daily rainfall trends and prepare for Alexandrias September weather 💧
Typically, Alexandria has 20 rainy days in September with a total of 201.1 mm of rainfall.
UV exposure in Alexandria during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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