30YearWeather
Las Vegas in September
Las Vegas weather in September - United States
☀️Hot & Sunny

Las Vegas Weather in September

Plan your September trip to Las Vegas, United States. Based on 30 years of NASA data, expect temperatures of 34°C (high) to 22°C (low), with 2% rain probability and 8 hours of daily sunshine. Great conditions with only 0 rainy days expected.

Avg High
34°C

Hottest around day 1

Avg Low
22°C

Coolest around day 30

Rainy Days
0days

2% avg rain chance

Sunshine
8hrs/day

Autumn season

Las Vegas September Weather Calendar

Click any day to see detailed weather information

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Connect

Essentially all hotels offer in-room Wi-...

Safety

Moderate Safety

GPI: 2.44

Travel Intelligence

Exclusive flight analytics & health data for Las Vegas

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Major Hub
87/ 100
Traffic Index

Extremely busy airport

Peak Daily Arrivals

0

slots per day

Peak

May

Low

Nov

Monthly Traffic Distribution

554
Jan
559
Feb
605
Mar
680
Apr
736
May
670
Jun
581
Jul
678
Aug
676
Sep
566
Oct
537
Nov
623
Dec
Traffic Level
Low Season

Key Connections

Los Angeles (LAX)
Denver (DEN)
Phoenix Sky Harbor (PHX)
San Diego (SAN)
San Francisco (SFO)

Health & Safety Advisory

CDC travel health recommendations

No Requirements

No Special Vaccinations Required

Standard travel precautions apply

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Las Vegas?

👌A reasonable choice for your trip
Short Answer

September offers scorching but dry heat in Las Vegas: 34°C highs with just 2% rain probability. Desert conditions mean comfortable evenings but challenging midday hours.

Decision Factors

Very hot conditions

34.3°C average highs - limit midday exposure

Peak tourist season

92% of annual peak - expect crowds and peak prices

Excellent dry conditions

Only 2% rain probability - ideal for outdoor activities

Arid conditions

Only 24% humidity - stay hydrated, use moisturizer

Plenty of sunshine

11.1h of sunshine daily

Good For

  • 📸
    Photographers

    11.1h sunshine, 86% clear skies for golden hour shots

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💑
    Honeymoon couples

    Wedding score 95/100 with romantic weather conditions

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 🌡️
    Heat-sensitive visitors

    34°C feels-like temperature creates discomfort

900 observations30-year historical data
Confidence: 95%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Las Vegas in September averages 34°C with 2% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Las Vegas in September

What are the temperatures in Las Vegas in September?

Daytime highs average 34°C, nights drop to 22°C. Temperatures remain fairly consistent.

How many rainy days in Las Vegas in September?

Expect around 0 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Las Vegas in September?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is September peak season in Las Vegas?

This is shoulder season—moderate prices and manageable crowds.