Las Vegas Weather in August
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North America › 🇺🇸 United States › Las Vegas
Updated: March 2026
Is August a Good Time to Visit Las Vegas?
August is a good time to visit Las Vegas (6/10). With 13 daily sunshine hours and only 2 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 4th sunniest of the year in Las Vegas. Culture-focused travellers and those who prefer lighter crowds will find August a practical choice, with prices running lower than peak June without sacrificing all the good weather. September offers a similar profile at lower hotel rates if dates are flexible. The intense midday heat between noon and 4pm warrants strategic planning: front-load outdoor sightseeing before 11am, retreat indoors during peak heat, and resume in the late afternoon when temperatures ease. Planning tips: accommodation is generally available without long lead times, and flight prices are typically lower than peak season. Flexible travellers will find the best deals by booking 2-4 weeks ahead. Mid-week arrivals consistently unlock lower hotel rates than weekend check-ins.
The single most important thing to know about visiting Las Vegas in August: the heat is serious at 38°C and demands sun protection, hydration, and shade-seeking between noon and 15:00. Precipitation totals 9mm for the month, spread across roughly 2 days, and 13 sunshine hours per day give you a reliable window for outdoor plans.
38°C
Avg High
26°C
Avg Low
2 days
Rain Days
13h
Sunshine
65%
Humidity
Temperature in Las Vegas in August
The 12°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. Humidity averages 65%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. UV index averages 9 this month, classed as high to very high. SPF 30+ sunscreen, a brim hat, and sunglasses are not optional between 10am and 4pm. Wind averages 18 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 100°F average high, 79°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Temperature in August
Monthly Precipitation (mm)
What to Wear in Las Vegas in August
Packing for Las Vegas in August means dressing for 38°C days and 26°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 38°C daytime heat. Evenings drop 12°C to around 26°C, a notable shift that catches underprepared visitors off guard. Pack a dedicated evening layer. For footwear, breathable walking sandals work for casual exploration, but closed-toe trainers are better for uneven surfaces in the historic centre.
Local tip: Layers are more practical than a single heavy garment in Las Vegas. The day-to-evening temperature shift rewards packing a versatile mid-layer you can add or remove as conditions change.
Events in Las Vegas in August
August has no major festivals or public holidays in Las Vegas, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
What to Pack for Las Vegas in August
Based on 38°C average highs and 2 rainy days
- Lightweight breathable clothing
- Linen or bamboo shirts for the hottest hours
- Sun hat with a wide brim
- UV-protective sunglasses
- Hydration bottle (at least 1 litre)
- Quick-dry travel towel
- Anti-chafe balm for long walking days
- Moisture-wicking synthetic fabrics for active days
- SPF 30+ sunscreen
- Comfortable walking shoes (a second pair lets the first air out overnight)
- Universal travel adapter
- Small day pack for city exploration
- Reusable water bottle
Best Activities in Las Vegas in August
- Early morning walk through Las Vegas's historic market districtBest before 9amTemperatures are still manageable at 34°C before the midday heat builds
- Open-air rooftop dining at sunsetFrom 6pm onwardsThe 38°C daytime heat drops noticeably after sunset, making al fresco dining comfortable
- Waterfront promenade or harbour walkEarly morning or after 5pmSea breezes cut through the humidity, making coastal routes the most pleasant in heat
- Guided cycling tour of the old quarterFirst tour of the day (7-9am)The low-traffic window before tourist crowds and the cooler morning air make this the prime riding slot
- Afternoon in a world-class museum or galleryAfternoon (2-5pm)Pairs well with outdoor morning activities and provides a mid-day rest from sightseeing
- Coffee-house or traditional cafe culture experienceMid-morning or post-lunchA cultural ritual in this region that rewards slow appreciation regardless of weather
- Evening live music, theatre, or opera performanceEvening shows typically at 7-9pmConsistent evening temperatures make getting to and from evening venues comfortable
- Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningAugust brings distinct seasonal changes to public green spaces worth exploring
- Seek out chilled local specialities: cold-brew tea, ice desserts, or chilled seafood at street-level stallsAny time; most atmospheric in evening marketsHot-weather street food culture peaks in August, with vendors setting up specifically for warm evenings
Why is Las Vegas warm in August?
August in Las Vegas reflects a mid-latitude climate pattern, with temperatures averaging 38°C by day and 26°C overnight. The city sits at 36 degrees north latitude, where the balance between solar radiation and heat loss drives conditions that are neither extreme nor static. The warm temperatures reflect a stable high-pressure pattern typical of the season, which suppresses cloud formation and concentrates solar energy at the surface. Day-to-night temperature variation of 12°C is moderate and manageable with a single mid-layer. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate -- wear sunscreen. UV 6-7: High -- hat and SPF 30+ essential. UV 8-10: Very High -- limit midday exposure. UV 11+: Extreme -- seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry -- skin and throat may feel parched. 40-60%: Comfortable -- ideal for most people. 60-80%: Sticky -- light, breathable fabrics recommended. Above 80%: Muggy -- heat feels more intense; quick-dry clothing is essential.
Frequently Asked Questions: Las Vegas in August
August ranks 4th sunniest of the year in Las Vegas, with an average 13 daily sunshine hours. The driest months are May, June, and September. July is the hottest month (39°C avg high); December is the coolest (13°C). From here, temperatures fall 4°C into September. Compared to last month (July: 39°C high, 2 rain days), August is cooler and equally dry. August sits in the middle of the annual sunshine ranking for Las Vegas, offering a reasonable balance of good weather and manageable crowds.
Year-Round Climate
Plan Your Trip to Las Vegas
Data Sources for Las Vegas
Climate normals represent 30-year averages (1991-2020). Individual years may vary.