Maryland (Baltimore)
September
Weather in Maryland for September 2026
Your guide to Maryland weather in September - trends and predictions
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So far, September 2026 in Maryland is slightly warmer than the historical average by 1.7 °F.
The forecast for the next days in Maryland predicts temperatures to be around 22 °F, close to the historical average.
In general, the average temperature in Maryland at the beginning of September is 30.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.6 °F by the end of September.
Maryland experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 280.9 mm.
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Official Weather Alert ⚠️
Temperatures
Rain 🌧️
More
9
Dry days
21
Rainy days
0
Snow days
25°/17°
Temperatures
16 km/h
Avg max wind
69 %
Avg humidity
Maryland Weather September
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What’s the Weather Like in Maryland This September?
Discover the average temperatures and weather trends across Maryland’s cities this September.
Temperatures trend during September in Maryland
See the weather trend as well as the moving average line
September weather in Maryland day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 30° /19° | 1.2 mm | 7 | |
| Sept. 2 |  Cloudy | 28° /18° | 18.1 mm | 6 | |
| Sept. 3 | Sunny | 30° /18° | 0.3 mm | 6 | |
| Sept. 4 |  Patchy rain possible | 32° /19° | 5.1 mm | 7 | |
| Sept. 5 | Sunny | 32° /20° | 4.8 mm | 8 | |
| Sept. 6 | Sunny | 31° /20° | 31.2 mm | 7 | |
| Sept. 7 | Patchy rain possible | 28° /18° | 11 mm | 7 | |
| Sept. 8 | Sunny | 29° /15° | 1.5 mm | 7 | |
| Sept. 9 | Patchy rain possible | 28° /16° | 1.9 mm | 7 | |
| Sept. 10 | Light rain shower | 28° /19° | 3.9 mm | 5 | |
| Sept. 11 | Patchy rain possible | 28° /19° | 0.7 mm | 6 | |
| Sept. 12 |  Mist | 28° /18° | 0.7 mm | 6 | |
| Sept. 13 | Light rain shower | 27° /19° | 4.5 mm | 5 | |
| Sept. 14 |  Partly cloudy | 27° /18° | 0 mm | 7 | |
| Sept. 15 | Sunny | 27° /15° | 0.7 mm | 7 | |
| Sept. 16 | Sunny | 25° /15° | 2 mm | 6 | |
| Sept. 17 |  Heavy rain | 22° /17° | 15.4 mm | 5 | |
| Sept. 18 | Light rain shower | 26° /18° | 14.8 mm | 6 | |
| Sept. 19 | Sunny | 26° /16° | 9.6 mm | 7 | |
| Sept. 20 | Partly cloudy | 25° /17° | 4.4 mm | 5 | |
| Sept. 21 |  Moderate or heavy rain shower | 24° /17° | 22.9 mm | 5 | |
| Sept. 22 | Patchy rain possible | 23° /15° | 6.5 mm | 4 | |
| Sept. 23 | Patchy rain possible | 20° /15° | 0.5 mm | 5.1 | |
| Sept. 24 |  Overcast | 19° /12° | 0 mm | 4.1 | |
| Sept. 25 | Sunny | 22° /13° | 0 mm | 5.5 | |
| Sept. 26 | Sunny | 23° /14° | 0 mm | 5.4 | |
| Sept. 27 | Sunny | 24° /15° | 0 mm | 6 | |
| Sept. 28 | Sunny | 25° /17° | 0 mm | 7 | |
| Sept. 29 | Overcast | 22° /17° | 0 mm | 5 | |
| Sept. 30 | Patchy rain possible | 23° /20° | 2.8 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Maryland 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 Maryland forecast closer to your planned date for the most up-to-date weather information.
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Maryland in September - FAQ
What are the expected maximum and minimum temperatures in Maryland during September?
During September, expect a variety of temperatures with highs around 25° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Maryland during September?
Significant rainfall exceeding 280.9 mm is expected in Maryland during September, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Maryland during September?
The average wind speed in Maryland during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Maryland
Explore the daily rainfall trends and prepare for Marylands September weather 💧
Typically, Maryland has 21 rainy days in September with a total of 280.9 mm of rainfall.
UV exposure in Maryland during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Counties in Maryland
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Top locations in Maryland
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