May weather forecast
Edmonton, Canada

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The Saskatchewan River below the James Macdonald Bridge, with a distant view of Edmonton City, Canada
The Saskatchewan River below the James Macdonald Bridge, with a distant view of Edmonton City, Canada

Weather in May

May brings the full onset of spring to Edmonton, infusing the city with breaths of fresh air, warmer temperatures, and a refreshing surge in natural beauty. The increased prevalence of rainfall significantly contributes to this vivid transformation. Additionally, longer sunshine duration provides a much-welcomed brilliance of illumination to the city. In May, temperatures start to show the first signs of summer, with a high of 16.4°C (61.5°F).

Temperature

As April transitions into May, Edmonton sees a clear rise in the average high-temperature, escalating from a frosty 7.4°C (45.3°F) to a comfortable 16.4°C (61.5°F). Edmonton's nighttime temperature in May falls to an average of 6°C (42.8°F).

Humidity

With an average relative humidity of 60%, May is the least humid month.

Rainfall

In Edmonton, during May, the rain falls for 13.6 days and regularly aggregates up to 43mm (1.69") of precipitation. Throughout the year, there are 108 rainfall days, and 338mm (13.31") of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. In May, it is snowing for 1.6 days. Throughout May, 18mm (0.71") of snow is accumulated. In Edmonton, during the entire year, snow falls for 72.7 days and aggregates up to 539mm (21.22") of snow.

Daylight

The average length of the day in May is 15h and 57min.
On the first day of the month, sunrise is at 5:56 am and sunset at 9:05 pm. On the last day of May, sunrise is at 5:11 am and sunset at 9:52 pm MDT.

Sunshine

The average sunshine in May is 9.9h.

UV index

In Edmonton, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 4 during May translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. To protect against the Sun's most potent rays, avoid direct exposure around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.

Frequently asked questions

What is the temperature in May?

The high-temperature, in May, in Edmonton, records 16.4°C (61.5°F), while the low-temperature is 6°C (42.8°F).

What is the least humid month?

The least humid month is May, with an average relative humidity of 60%.

What is the average humidity in May?

The average relative humidity in May is 60%.

How many days does it rain in May?

In Edmonton, in May, during 13.6 rainfall days, 43mm (1.69") of precipitation is typically accumulated.

How many days does it snow in May?

In Edmonton, during May, snow falls for 1.6 days and regularly aggregates up to 18mm (0.71") of snow.

What is the average length of the day in May?

In Edmonton, the average day length in May is 15h and 57min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 5:56 am and sunset at 9:05 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 9:52 pm MDT.

How long on average sun shines in May?

In Edmonton, the average sunshine duration in May is 9.9h.

What is the UV index reading in May?

The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Edmonton, Canada

Average temperature in May - Edmonton, Canada
  • Average high temperature in May: 16.4°C

The warmest month (with the highest average high temperature) is July (22.6°C).
The month with the lowest average high temperature is December (-7.3°C).

  • Average low temperature in May: 6°C

The month with the highest average low temperature is July (11.3°C).
The coldest month (with the lowest average low temperature) is February (-15.1°C).

Average pressure in May
Edmonton, Canada

Average pressure in May - Edmonton, Canada
  • Average pressure in May: 1013.6mbar

The month with the highest atmospheric pressure is February (1020.1mbar).
The month with the lowest atmospheric pressure is June (1010.2mbar).

Average wind speed in May
Edmonton, Canada

Average wind speed in May - Edmonton, Canada
  • Average wind speed in May: 12.7km/h

The windiest month (with the highest average wind speed) is April (13.1km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).

Average humidity in May
Edmonton, Canada

Average humidity in May - Edmonton, Canada
  • Average humidity in May: 60%

The month with the highest relative humidity is March (92%).
The month with the lowest relative humidity is May (60%).

Average rainfall in May
Edmonton, Canada

Average rainfall in May - Edmonton, Canada
  • Average rainfall in May: 43mm

The wettest month (with the highest rainfall) is June (74mm).
The driest month (with the least rainfall) is February (8mm).

Average rainfall days in May
Edmonton, Canada

Average rainfall days in May - Edmonton, Canada
  • Average rainfall days in May: 13.6 days

The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (1.6 days).

Average snowfall in May
Edmonton, Canada

Average snowfall in May - Edmonton, Canada
  • Average snowfall in May: 18mm

The month with the highest snowfall is November (90mm).
The months with the least snowfall are July and August (0mm).

Average snowfall days in May
Edmonton, Canada

Average snowfall days in May - Edmonton, Canada
  • Average snowfall days in May: 1.6 days

The month with the highest number of snowfall days is March (13.2 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in May /
Average sunshine in May
Edmonton, Canada

Average daylight in May / Average sunshine in May - Edmonton, Canada
  • Average daylight in May: 16h and 0min

The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in May
Edmonton, Canada

Average sunshine days in May - Edmonton, Canada
  • Average sunshine days in May: 15.3 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is June (8.8 days).

Average UV index in May
Edmonton, Canada

Average UV index in May - Edmonton, Canada
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and March (UV index 1).

Average cloud cover in May
Edmonton, Canada

Average cloud cover in May - Edmonton, Canada
  • Average cloud cover in May: 37

The month with the most cloud cover is March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in May
Edmonton, Canada

Average visibility in May - Edmonton, Canada
  • Average visibility in May: 9km

The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and March (7km).

Edmonton, Canada

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