May weather forecast
Las Vegas, NV

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A night aerial view of the Las Vegas strip in Nevada, USA
A night aerial view of the Las Vegas strip in Nevada, USA

Weather in May

As summer begins to take hold in May, Las Vegas experiences significantly warmer temperatures. Positioned between spring and summer, May is beautifully clear with a significantly low chance of rainfall. With the increase in temperature, Las Vegas begins to sizzle not only from the heat but also from the steady march of activities. Pool season officially begins, and the city is bustling with energy and excitement. In May, the city boasts the least cloud density, a mere 11% on average, emphasizing clear blue skies for most days.

Temperature

As April transitions into May, a subtle temperature shift is observed, with average highs adjusting from a pleasant 72°F (22.2°C) to a warm 80.6°F (27°C). In May, Las Vegas encounters an average low-temperature of 61.7°F (16.5°C) during the night.

Humidity

In May, the average relative humidity is 21%.

Rainfall

In Las Vegas, in May, it is raining for 3.7 days, with typically 0.24" (6mm) of accumulated precipitation. Throughout the year, there are 57.5 rainfall days, and 6.02" (153mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall in Las Vegas.

Daylight

In Las Vegas, the average length of the day in May is 14h and 6min.
On the first day of the month, sunrise is at 5:46 am and sunset at 7:28 pm. On the last day of May, sunrise is at 5:24 am and sunset at 7:52 pm PDT.

Sunshine

In Las Vegas, the average sunshine in May is 11.9h.

UV index

In May, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: A maximum daily UV index of 7 during May morphs into the following directions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

What is the usual temperature for Las Vegas in May?

The average high-temperature, in May, in Las Vegas, is 80.6°F (27°C), while the average low-temperature is 61.7°F (16.5°C).

What is the average humidity in May?

In May, the average relative humidity is 21%.

How many days does it rain in May?

In Las Vegas, Nevada, during May, the rain falls for 3.7 days and regularly aggregates up to 0.24" (6mm) of precipitation.

When it does not snow?

March through November are months without snowfall.

How many hours of daylight does Las Vegas have in May?

The average day length in May is 14h and 6min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:46 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 7:52 pm PDT.

How long on average sun shines in May?

The average sunshine duration in May in Las Vegas is 11.9h.

How high is the UV index in May?

In Las Vegas, the average daily maximum UV index in May is 7. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Las Vegas, NV

Average temperature in May - Las Vegas, NV
  • Average high temperature in May: 80.6°F

The warmest month (with the highest average high temperature) is July (97.3°F).
The month with the lowest average high temperature is December (50°F).

  • Average low temperature in May: 61.7°F

The month with the highest average low temperature is July (77.7°F).
The coldest month (with the lowest average low temperature) is December (37.9°F).

Average pressure in May
Las Vegas, NV

Average pressure in May - Las Vegas, NV
  • Average pressure in May: 29.81"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).

Average wind speed in May
Las Vegas, NV

Average wind speed in May - Las Vegas, NV
  • Average wind speed in May: 8.1mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).

Average humidity in May
Las Vegas, NV

Average humidity in May - Las Vegas, NV
  • Average humidity in May: 21%

The month with the highest relative humidity is January (48%).
The month with the lowest relative humidity is June (15%).

Average rainfall in May
Las Vegas, NV

Average rainfall in May - Las Vegas, NV
  • Average rainfall in May: 0.24"

The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in May
Las Vegas, NV

Average rainfall days in May - Las Vegas, NV
  • Average rainfall days in May: 3.7 days

The month with the highest number of rainy days is July (8.3 days).
The month with the least rainy days is June (1.4 days).

Average snowfall in May
Las Vegas, NV

Average snowfall in May - Las Vegas, NV
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Las Vegas, NV

Average snowfall days in May - Las Vegas, NV
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
Las Vegas, NV

Average daylight in May / Average sunshine in May - Las Vegas, NV
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in May: 11h and 5min

The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days in May
Las Vegas, NV

Average sunshine days in May - Las Vegas, NV
  • Average sunshine days in May: 23.7 days

The month with the most sunshine days is June (27.3 days).
The month with the least sunshine days is July (18.1 days).

Average UV index in May
Las Vegas, NV

Average UV index in May - Las Vegas, NV
  • Average UV index in May: 7

The months with the highest UV index are June and July (UV index 8).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in May
Las Vegas, NV

Average cloud cover in May - Las Vegas, NV
  • Average cloud cover in May: 11

The month with the most cloud cover is December (Cloud cover 20).
The months with the least cloud cover are June and August (Cloud cover 6).

Average visibility in May
Las Vegas, NV

Average visibility in May - Las Vegas, NV
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Las Vegas, Nevada, USA

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