The best times to visit Summerlin for ideal weather are
March 12th to May 27th
October 1st to November 11th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Summerlin Travel Guide
Weather in Summerlin
Average temperatures in Summerlin vary drastically. Considering humidity, temperatures feel very nice much of the year, but hot in the summer and cold in the winter with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 54th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Summerlin, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally early July where highs are regularly around 106°F (41.1°C) with temperatures rarely dropping below 79.8°F (26.6°C) at night.
Summerlin Temperatures (Fahrenheit)
Summerlin Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Summerlin Perceived Temperature (F)
Summerlin Perceived Temperature (C)
Average Summerlin Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Summerlin are June, May, and then April. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late March. For example, on the week of March 26th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late January with an average of 1 days of significant precipitation the week of January 22nd.
When can you find snow in Summerlin? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
The graph below shows the % chance of rainy and snowy days in Summerlin.
Snow on the Ground
The graph below shows the average snow on the ground in Summerlin (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Summerlin has no months that would be considered humid, with some extremely dry months. The least humid month is June (5.8% relative humidity), and the most humid month is December (33%).
Wind in Summerlin is usually calm. The windiest month is April, followed by May and June. April’s average wind speed of around 8.2 knots (9.4 MPH or 15.1 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late April where average top sustained speeds reach 18.1 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Summerlin.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||5.1||Light breeze||11.2||Significant breeze|
|Feb||5.8||Light breeze||13.2||Significant breeze|
|Mar||7||Gentle breeze||14.8||Significant breeze|
|Apr||8.2||Gentle breeze||16.8||Significant breeze|
|May||8||Gentle breeze||16.9||Significant breeze|
|Jun||7.5||Gentle breeze||16.2||Significant breeze|
|Jul||6.4||Light breeze||15.8||Significant breeze|
|Aug||6.2||Light breeze||14.6||Significant breeze|
|Sep||5.4||Light breeze||12.8||Significant breeze|
|Oct||5.7||Light breeze||12.4||Significant breeze|
|Nov||5.2||Light breeze||11.4||Significant breeze|
|Dec||5.3||Light breeze||11.9||Significant breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Summerlin?
Our best data indicates this area is generally safe. As of Mar 17, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Mar 15, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Summerlin, NV, US is January, followed by July and February. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Summerlin in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Summerlin Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 95.6°F (35.3°C) and 66.5°F (19.2°C) with warmer temperatures in the later months. Rain is extremely rare with 0 to 1 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have hot weather with high temperatures that are extremely hot. These months see moderate precipitation with 0 to 1 days of precipitation per month. June – August is the busiest season for tourism in Summerlin, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 99.9°F (37.7°C) and 62.7°F (17.1°C), which will feel very nice given the humidity and wind. It rains or snows a barely noticeable amount: 0 to 1 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is too cold this time of year in Summerlin to be enjoyable for warm weather travelers. The average high during this season is between 66.6°F (19.2°C) and 53.9°F (12.2°C). On average, it rains or snows a smalll amount: consistently 1 times per month. These times of year are the second busiest with tourists.