- Average Temp in Las Vegas in September: high of 96° F, low of 57° F
- Rainfall: 0.3 inches
- Humidity: 17%
Although you can expect cooler weather in Las Vegas in September, it’s still hot during the day and much more pleasant at night. When the temps get back to the 90s, locals get excited that fall is coming. However, we know that heat waves can still hit.
Additionally, most schools have started, so you should see hotel rates start to drop (although post-pandemic may look different).