worldweatherUnited States of America weather in September - temperature, rain and is it a good time to visit?
September is one of the best months for a holiday in United States of America.
Daytime
31°
Night
21°
☀️ Day length
12 h 27 min
Chance of rain
20%
Thunder days
10%
Humid days
81%
In September, United States of America averages about 31° during the day and 21° at night. It's usually fairly dry, with only about a 20% chance of rain.
United States of America weather all year - average temperatures and rain
| Month | Day | Night | Chance of rain |
|---|---|---|---|
| January | 14℃ | 3℃ | 20% |
| February ★ | 17℃ | 6℃ | 24% |
| March ★ | 20℃ | 9℃ | 24% |
| April ★ | 24℃ | 13℃ | 27% |
| May ★ | 28℃ | 17℃ | 29% |
| June | 32℃ | 22℃ | 27% |
| July | 34℃ | 24℃ | 24% |
| August | 34℃ | 23℃ | 26% |
| September ★ | 31℃ | 21℃ | 20% |
| October ★ | 27℃ | 16℃ | 19% |
| November ★ | 20℃ | 10℃ | 21% |
| December ★ | 16℃ | 6℃ | 22% |
★ - months most often recommended for travel
Where is it warmest in United States of America in September? Weather by city
| Place | Day | Night | 🌊 Sea | Chance of rain |
|---|---|---|---|---|
| Phoenix | 37℃ | 25℃ | - | 14% |
| San Antonio | 34℃ | 23℃ | - | 30% |
| Houston | 33℃ | 24℃ | - | 0% |
| Dallas | 33℃ | 23℃ | - | 15% |
| Jacksonville | 31℃ | 24℃ | - | 51% |
| Oklahoma City | 31℃ | 18℃ | - | 25% |
| Los Angeles | 29℃ | 19℃ | 22℃ | 4% |
| Nashville | 29℃ | 17℃ | - | 24% |
| Washington | 28℃ | 18℃ | - | 29% |
| New York | 27℃ | 19℃ | 23℃ | 5% |
Travelling soon? Check the live 14-day weather forecast for United States of America.