Maryland (Baltimore)
September
Weather in Maryland for September 2025
Your guide to Maryland weather in September - trends and predictions
Until now, September 2025 in Maryland is slightly cooler than the historical average by -1.8 °F.
Expect cooler weather in the next days in Maryland with the forecast suggesting a temperature of 26.4 °F, lower than the historical average.
In general, the average temperature in Maryland at the beginning of September is 29 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 26.3 °F by the end of September.
Maryland in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 270.4 mm.
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Temperatures
Rain 🌧️
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12
Dry days
18
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 | 27° /18° | 1.6 mm | 6 | |
| Sept. 2 |  Cloudy | 27° /17° | 0 mm | 7 | |
| Sept. 3 | Sunny | 28° /17° | 0 mm | 7 | |
| Sept. 4 |  Patchy rain possible | 31° /19° | 6 mm | 7 | |
| Sept. 5 | Sunny | 32° /20° | 6.4 mm | 8 | |
| Sept. 6 | Light rain shower | 31° /21° | 41.7 mm | 7 | |
| Sept. 7 | Patchy rain possible | 27° /19° | 14.7 mm | 6 | |
| Sept. 8 | Sunny | 27° /15° | 2.1 mm | 7 | |
| Sept. 9 | Patchy rain possible | 26° /16° | 2.6 mm | 7 | |
| Sept. 10 | Light rain shower | 27° /18° | 5 mm | 6 | |
| Sept. 11 | Patchy rain possible | 28° /18° | 0.5 mm | 7 | |
| Sept. 12 |  Mist | 28° /18° | 0 mm | 7 | |
| Sept. 13 | Light rain shower | 27° /18° | 0.8 mm | 6 | |
| Sept. 14 |  Partly cloudy | 28° /18° | 0 mm | 7 | |
| Sept. 15 | Partly cloudy | 29° /18° | 0 mm | 1.1 | |
| Sept. 16 | Patchy rain possible | 21° /17° | 3.3 mm | 0.8 | |
| Sept. 17 |  Moderate rain | 19° /16° | 5.7 mm | 0.3 | |
| Sept. 18 | Partly cloudy | 29° /17° | 0.1 mm | 1.5 | |
| Sept. 19 | Sunny | 31° /20° | 0 mm | 0 | |
| Sept. 20 | Partly cloudy | 24° /17° | 0 mm | 5 | |
| Sept. 21 | Sunny | 23° /15° | 0 mm | 5 | |
| Sept. 22 | Sunny | 24° /16° | 0 mm | 5 | |
| Sept. 23 | Sunny | 27° /16° | 0 mm | 6 | |
| Sept. 24 | Sunny | 32° /19° | 0 mm | 7 | |
| Sept. 25 | Sunny | 28° /18° | 0 mm | 6 | |
| Sept. 26 | Sunny | 26° /18° | 0 mm | 6 | |
| Sept. 27 | Sunny | 28° /17° | 0 mm | 6 | |
| Sept. 28 | Sunny | 29° /20° | 0 mm | 6 | |
| Sept. 29 |  Moderate or heavy rain with thunder | 20° /17° | 7.4 mm | 5 | |
| Sept. 30 | Patchy rain possible | 21° /16° | 0.2 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.
Change Month
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 270.4 mm is expected in Maryland during September, occurring over more than 18 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 💧
UV exposure in Maryland during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Top locations in Maryland
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