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CES
📅 Early January each year
During the major international trade show, hotel rates and transport demand around the convention area can rise sharply.
Check official source →🇺🇸 United States · Nevada · Las Vegas
Las Vegas Weather in September
Hot early autumnWeather in Las Vegas during September is typically very hot in the daytime and mild to warm after sunset, based on 2016–2025 averages of 35°C (96°F) / 22°C (72°F). Rain is relatively limited, with about 1 day reaching at least 1 mm of precipitation and roughly 9 mm for the month.
Avg high95.5°F 35.3°CAvg low71.7°F 22.1°CRainy days~1.2 daysMonthly rain8.5 mm
🧳 Packing guide
What to wear in Las Vegas in September
For what to wear in Las Vegas in September, pack very light, breathable clothing, sun protection and shoes that handle heat well. Heavy rain gear is usually unnecessary, although a small umbrella is an easy backup.
Travel takeaway: Sightseeing is possible, but the heat can shape the pace of the day; early starts, shade and indoor breaks help.
🗓️ Travel timing at a glance
Las Vegas: 12-month travel weather
Las Vegas has a very dry desert climate and large day–night temperature swings. Extreme heat from June into September is the main weather constraint for outdoor plans.
JanWinterFebLate winterMarSpringAprWarm springMayEarly summer · DryJunHeat wave risk · DryJulExtreme heat · DryAugExtreme heat · DrySepHot early autumnOctAutumnNovLate autumnDecWinter
Monthly labels summarize typical climate patterns for trip planning. Always check the latest forecast and tropical-storm alerts before departure.
🎉 Trip planning check
Las Vegas 2026 events & busy periods
Check major events, holidays and periods that may affect crowds, transport or opening hours.
⚠️ Busy / closure period
Las Vegas Grand Prix week
📅 Around November each year
Road closures around the Strip and heavy hotel demand can significantly change travel times and routes.
Check official source →Event dates, holiday schedules and opening hours can change. Recheck the linked official tourism or government source before departure.
Las Vegas in September · recent 3 years
Compare the most recent complete year with the two years before it. Daily high / low temperatures are shown in °F.
CalendarNo measurable rain🌧️ Rain⛈️ Thunderstorm❄️ SnowHigh / Low · °F
⭐ September 2025 · latest complete year☔ 1 days · 2.8 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
41.7°C/25.8°C
No rain
2
38.3°C/27.2°C
No rain
3
34.7°C/27.2°C
No rain
4
36.6°C/24.6°C
No rain
5
34.6°C/23.4°C
No rain
6
37.2°C/22.1°C
No rain
7
37.9°C/22.7°C
No rain
8
37.4°C/25.1°C
No rain
9
36.3°C/23°C
No rain
10
34°C/22.4°C
No rain
11
33.6°C/20°C
No rain
12
33.5°C/19°C
No rain
13
34.5°C/20.2°C
No rain
14
36°C/20.6°C
No rain
15
36.2°C/20.7°C
No rain
16
37.3°C/21.1°C
No rain
17
37.7°C/20.7°C
No rain
18
31.1°C/21.6°C
No rain
19
31.4°C/19.1°C
No rain
20
34.2°C/21.3°C
No rain
21
35.7°C/21.7°C
No rain
22
34.3°C/21.1°C
No rain
23
34.9°C/20.2°C
No rain
24
35.2°C/20.7°C
No rain
25
34.6°C/23.2°C
No rain
26
29.5°C/21.8°C
🌧️ 1.1 mm
27
30.4°C/19.8°C
No rain
28
28.6°C/19.6°C
No rain
29
30.7°C/18.4°C
No rain
30
32°C/20.7°C
No rain
September 2024☔ 0 days · 0 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
39.2°C/27.7°C
No rain
2
40.7°C/28.9°C
No rain
3
41.2°C/26.4°C
No rain
4
41.1°C/26.5°C
No rain
5
41.8°C/26.8°C
No rain
6
40.2°C/25.4°C
No rain
7
41.4°C/25.7°C
No rain
8
40.4°C/26°C
No rain
9
39.8°C/24.8°C
No rain
10
39.7°C/24.4°C
No rain
11
37.3°C/25.2°C
No rain
12
34.4°C/20.5°C
No rain
13
35.2°C/22.8°C
No rain
14
36.7°C/24.9°C
No rain
15
36.6°C/24°C
No rain
16
28.3°C/20.9°C
No rain
17
28.3°C/15°C
No rain
18
30.3°C/18°C
No rain
19
31.2°C/20.3°C
No rain
20
28.9°C/19.8°C
No rain
21
32.6°C/18.4°C
No rain
22
34.2°C/19°C
No rain
23
36.4°C/21.9°C
No rain
24
37.1°C/21.9°C
No rain
25
37.4°C/23.4°C
No rain
26
38.1°C/22.4°C
No rain
27
39.4°C/22.4°C
No rain
28
40.7°C/27.3°C
No rain
29
41°C/26.8°C
No rain
30
39.6°C/21.9°C
No rain
September 2023☔ 2 days · 43.9 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
33.4°C/22.1°C
🌧️ 37.8 mm
2
27.7°C/21.3°C
🌧️ 5.6 mm
3
31.4°C/19.9°C
No rain
4
30°C/16.4°C
No rain
5
32.1°C/19.1°C
No rain
6
35°C/21.9°C
No rain
7
37.2°C/21.9°C
No rain
8
39.4°C/21.3°C
No rain
9
39.5°C/24.9°C
No rain
10
32.1°C/25.8°C
No rain
11
34.9°C/21.1°C
No rain
12
35.8°C/25°C
No rain
13
32.7°C/22.8°C
No rain
14
32.8°C/21.2°C
No rain
15
34.8°C/21.2°C
No rain
16
35.7°C/21.9°C
No rain
17
36.8°C/24.2°C
No rain
18
35.8°C/23.6°C
No rain
19
34.5°C/21.1°C
No rain
20
32.7°C/21°C
No rain
21
30.7°C/18.2°C
No rain
22
31.6°C/16.5°C
No rain
23
28.7°C/19.4°C
No rain
24
31.8°C/18.8°C
No rain
25
33.7°C/21.2°C
No rain
26
34.5°C/20.1°C
No rain
27
35.1°C/20.9°C
No rain
28
35.6°C/21.2°C
No rain
29
35.8°C/21°C
No rain
30
24.9°C/18.3°C
No rain
Historical calendars use Open-Meteo reanalysis data. A rainy day is counted when daily precipitation is at least 1 mm. Conditions at a specific hotel, beach or station can differ.
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Current Las Vegas weather and 7-day forecast
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Forecast data: MET Norway · CC BY 4.0 · cached by Travel Weather Fairy
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Las Vegas weather in other months
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