Arizona, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and Climate
Yuma, AZ

Aerial view of the Arizona/California border with the Colorado River in Yuma, Arizona
Aerial view of the Arizona/California border with the Colorado River in Yuma, Arizona
May is hot and sunny with most days above 90°F (32.2°C) and many nights above 60°F (15.6°C). About one-third of the days in the month touch a high temperature of 100°F (37.8°C).
The spring season is over, and the migratory population of birds and humans is mostly out of Yuma. The city sees tourists who visit for recreational activities in May to take advantage of the long days with 13 hours of sunlight. Downtown Yuma offers interesting nightlife options with comfortable low temperatures.
Light summer clothing feels relaxing to wear in the heat of the day while the nights rarely demand packing in a layer.
  • The average high temperature in May: 95.3°F

The warmest month (with the highest average high temperature) is July (106.8°F).
The month with the lowest average high temperature is December (68.3°F).

  • The average low temperature in May: 67.3°F

The month with the highest average low temperature is August (82.3°F).
The coldest month (with the lowest average low temperature) is December (46.6°F).

  • The average rainfall in May: 0"

Wettest months (with the highest rainfall) are August, September and December (0.5").
Driest months (with the lowest rainfall) are May and June (0").

  • The average rainfall days in May: 0.4 days

Months with the highest number of rainy days are January and August (2.3 days).
The month with the lowest number of rainy days is June (0.2 days).

  • The average daylight in May: 14h

Months with the longest days are May, June and July (Average daylight: 14h).
Months with shortest days are January, November and December (Average daylight: 10h).

  • The average sunshine in May: 13.1h

The month with most sunshine is June (Average sunshine: 13.8h).
The month with least sunshine is December (Average sunshine: 8.2h).

  • The average UV index in May: 10

The month with the highest UV index is July (UV index 11).
Months with the lowest UV index are January and December (UV index 3).