The temperatures in Baltimore in September are comfortable with low of 17°C and and high up to 26°C.
You can expect about 3 to 8 days of rain in Baltimore during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Baltimore in September 2025.
If you’re planning to visit Baltimore in the near future, we highly recommend that you review the 14 day weather forecast for Baltimore before you arrive.
Temperatures
26° / 17°
Rainy Days
6
Snowy Days
0
Dry Days
24
Rainfall
142
mm
Sun Hours
10.3
Hrs
