Las Vegas in September
Heat easing
By Daan · Last reviewed October 2026
The short answer
September is a reasonable month in Las Vegas — with trade-offs.
September stays hot early on, then becomes more pleasant toward the end.
September in detail
What September actually feels like
- Weather
- 22–35°C
- Hot, cooling later in the month.
- Crowds
- Moderate
- Prices
- $$
- Fair rates.
+Pools still open.
–Still hot early in the month.
My tip for September
Late September is better than early September.
- Pools
- Shows
How September compares
Against the other eleven months
6th of 12 overall in Las Vegas, 6th for weather, 3rd for space, 4th for value. The emptiest month is August; the best value is August.
See all twelve months for Las VegasNot set on September?
Even stronger months in Las Vegas
Also good in September
Weather
Weather in Las Vegas in September
In September Las Vegas averages a high of 35°C (95°F) and a low of 22°C (72°F), with about 8 mm of rain or snow over 2 wet days. The warmest month is July (around 40°C) and the coolest is December (around 14°C); the wettest month is February.
- Average high
- 35°C
- 95°F
- Average low
- 22°C
- 72°F
- Precipitation
- 8 mm
- Wet days
- 2
Climate data: NOAA (Harry Reid International Airport, 1991–2020). Temperatures are averages of daily highs and lows.
Quick answers
Las Vegas in September: the questions people ask
- Is September a good time to visit Las Vegas?
- September is a reasonable month in Las Vegas — with trade-offs. It ranks 6 of 12 months in Las Vegas overall (6 for weather, 3 for space, 4 for value). The main upside: Pools still open. The main downside: Still hot early in the month.
- What is the weather like in Las Vegas in September?
- Average highs are around 35°C and lows around 22°C. Expect about 8 mm of rain or snow over roughly 2 wet days. Hot, cooling later in the month. For comparison, the warmest month is July (around 40°C) and the coolest is December (around 14°C).
- Is Las Vegas crowded in September?
- Crowds are moderate. Moderate. The quietest month is August.
- How expensive is Las Vegas in September?
- Prices are at level 2 of 5 ($$). Fair rates. The best-value month is August.
- When is the best time to visit Las Vegas?
- In the CrowdFreeViews month scores, April is the best month overall (September ranks 6 of 12). The quietest month is August and the best value is August.