Weather in Alexandria, Virginia for September 2025
Until now, September 2025 in Alexandria is cooler than usual, with temperatures averaging 26.2 °F, this is -2.6 °F below the typical seasonal average.
Expect cooler weather in the next days in Alexandria with the forecast suggesting a temperature of 27.5 °F, lower than the historical average.
In general, the average temperature in Alexandria at the beginning of September is 29.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.3 °F by the end of September.
Alexandria in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 202.7 mm.
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Alexandria Weather September
Temperatures trend during September in Alexandria
September weather in Alexandria day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 28° /17° | 0.3 mm | 7 | |
| Sept. 2 | Sunny | 27° /16° | 0 mm | 7 | |
| Sept. 3 |  Partly cloudy | 28° /15° | 0 mm | 7 | |
| Sept. 4 |  Patchy rain possible | 31° /18° | 1.4 mm | 7 | |
| Sept. 5 | Sunny | 32° /19° | 2.8 mm | 8 | |
| Sept. 6 | Sunny | 32° /20° | 7.9 mm | 7 | |
| Sept. 7 |  Thundery outbreaks possible | 27° /18° | 8.4 mm | 6 | |
| Sept. 8 | Sunny | 28° /15° | 2.3 mm | 7 | |
| Sept. 9 | Light rain shower | 27° /15° | 2.6 mm | 7 | |
| Sept. 10 | Light rain shower | 28° /16° | 4.4 mm | 7 | |
| Sept. 11 | Patchy rain possible | 29° /16° | 0.5 mm | 7 | |
| Sept. 12 | Sunny | 29° /17° | 0 mm | 7 | |
| Sept. 13 | Sunny | 31° /13° | 0 mm | 1.5 | |
| Sept. 14 | Partly cloudy | 30° /18° | 0 mm | 1.1 | |
| Sept. 15 | Partly cloudy | 28° /19° | 0 mm | 1.4 | |
| Sept. 16 | Partly cloudy | 28° /17° | 0 mm | 1.4 | |
| Sept. 17 | Partly cloudy | 25° /17° | 0 mm | 0 | |
| Sept. 18 | Sunny | 29° /16° | 0 mm | 6 | |
| Sept. 19 | Sunny | 32° /18° | 0.1 mm | 6 | |
| Sept. 20 | Patchy rain possible | 32° /20° | 0.2 mm | 5 | |
| Sept. 21 | Sunny | 29° /19° | 0 mm | 6 | |
| Sept. 22 | Partly cloudy | 24° /16° | 0 mm | 5 | |
| Sept. 23 | Patchy rain possible | 24° /17° | 1.8 mm | 5 | |
| Sept. 24 | Patchy rain possible | 26° /17° | 0.5 mm | 5 | |
| Sept. 25 | Sunny | 24° /15° | 0 mm | 5 | |
| Sept. 26 | Patchy rain possible | 23° /12° | 0.4 mm | 4 | |
| Sept. 27 | Patchy rain possible | 21° /16° | 19.6 mm | 5 | |
| Sept. 28 |  Overcast | 25° /16° | 2.7 mm | 6 | |
| Sept. 29 | Light rain shower | 22° /17° | 1.1 mm | 5 | |
| Sept. 30 | Patchy rain possible | 22° /17° | 0.1 mm | 5 | |
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Alexandria in September - FAQ
September rainfall patterns in Alexandria
UV exposure in Alexandria during September
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Where is Alexandria?Get accurate weather forecasts for Alexandria, located at latitude 38.805 and longitude -77.047. Stay updated with localized weather information tailored for Alexandria.