The temperatures in the United States in September are comfortable with low of 17°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in the United States 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 United States in September 2023.
If you’re planning to visit United States in the near future, we highly recommend that you review the 14 day weather forecast for United States before you arrive.