Monthly weather averages & travel planning

North America › 🇺🇸 United States › Las Vegas
Updated: March 2026
June is a good time to visit Las Vegas (6/10). With 14 daily sunshine hours and only 1 rain days, this month delivers genuinely reliable outdoor conditions, ranking it the sunniest month of the year in Las Vegas. Culture-focused travellers and those who prefer lighter crowds will find June a practical choice, with prices running lower than peak June without sacrificing all the good weather. July 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 June: the gap between the 37°C daytime high and the 22°C overnight low is large enough to catch underprepared visitors off guard, so layers are non-negotiable. Precipitation totals 2mm for the month, spread across roughly 1 days, and 14 sunshine hours per day give you a reliable window for outdoor plans.
37°C
99°F
Avg High
22°C
72°F
Avg Low
1 days
2 mm total
Rain Days
14h
per day avg
Sunshine
65%
Moderate
Humidity
The 15°C day-to-night swing is large enough to require a deliberate layering strategy, what works at noon will be noticeably cold by 10pm. 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 20 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 99°F average high, 72°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Packing for Las Vegas in June means dressing for 37°C days and 22°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 37°C daytime heat. Evenings drop 15°C to around 22°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.
June 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.
Based on 37°C average highs and 1 rainy days
June in Las Vegas reflects a mid-latitude climate pattern, with temperatures averaging 37°C by day and 22°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 15°C is large and requires deliberate layering. 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.
Las Vegas in June
June ranks 1st sunniest of the year in Las Vegas, with an average 14 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 rise 2°C into July. Compared to last month (May: 31°C high, 1 rain days), June is warmer and equally dry. June is among the top three sunniest months to visit Las Vegas.
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 14°C | 4°C | 4 | 9h | View |
| February | 17°C | 5°C | 5 | 9h | View |
| March | 21°C | 9°C | 3 | 11h | View |
| April | 26°C | 12°C | 2 | 12h | View |
| May | 31°C | 17°C | 1 | 13h | View |
| June | 37°C | 22°C | 1 | 14h | View |
| July | 39°C | 26°C | 2 | 14h | View |
| August | 38°C | 26°C | 2 | 13h | View |
| September | 34°C | 21°C | 1 | 12h | View |
| October | 27°C | 15°C | 2 | 11h | View |
| November | 19°C | 8°C | 2 | 9h | View |
| December | 13°C | 4°C | 3 | 8h | View |
January
4 rain days, 9h sun
February
5 rain days, 9h sun
March
3 rain days, 11h sun
April
2 rain days, 12h sun
May
1 rain days, 13h sun
June
1 rain days, 14h sun
July
2 rain days, 14h sun
August
2 rain days, 13h sun
September
1 rain days, 12h sun
October
2 rain days, 11h sun
November
2 rain days, 9h sun
December
3 rain days, 8h sun
Data Sources for Las Vegas
Climate normals represent 30-year averages (1991-2020). Individual years may vary.