May weather forecast
Mississauga, Canada

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Weather in May

May symbolizes the beginning of warm weather in Mississauga with the highest temperature escalating to 16.2°C (61.2°F). As the season transitions towards summer, cold winds get replaced by warm breezes, and the flora is in full bloom, casting a vibrant hue all around. Rainfall levels reach their peak this month but fails to halt the escalating temperatures. More daylight hours make May well suited for outdoor activities and city explorations. The significantly warmer sea temperature than the preceding months initiates the beginning of the aqua sport season.

Temperature

Mississauga's transition into May brings a rise in the average high-temperature, moving from a chilly 9.4°C (48.9°F) in April to an enjoyable 16.2°C (61.2°F). Mississauga, in May, observes a steady average low-temperature of 9.3°C (48.7°F).

Humidity

The average relative humidity in May is 78%.

Rainfall

In May, in Mississauga, the rain falls for 17.6 days. Throughout May, 79mm (3.11") of precipitation is accumulated. In Mississauga, during the entire year, the rain falls for 177.2 days and collects up to 786mm (30.94") of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Mississauga aggregates 5mm (0.2") of snow. Throughout the year, there are 58.5 snowfall days, and 403mm (15.87") of snow is accumulated.

Sea temperature

In Mississauga, in May, the average water temperature is 6°C (42.8°F).
Note: Swimming in 6°C (42.8°F) poses a severe threat. Even short exposure to 13°C (55.4°F) is chilling, and going below 10°C (50°F) can cause breathing irregularities and intense cold shock, based on one's stamina.

Daylight

In Mississauga, the average length of the day in May is 14h and 44min.
On the first day of May, sunrise is at 6:09 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:52 pm EDT.

Sunshine

In May, the average sunshine in Mississauga is 9.2h.

UV index

The average daily maximum UV index in May in Mississauga is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 4 during May, leads to the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

What are the temperatures in Mississauga in May?

In Mississauga, in May, the average high-temperature is 16.2°C (61.2°F), and the average low-temperature is 9.3°C (48.7°F).

What is the average humidity in May in Mississauga?

In Mississauga, the average relative humidity in May is 78%.

How many days does it rain in May in Mississauga?

In May, the rain falls for 17.6 days. Throughout May, 79mm (3.11") of precipitation is accumulated.

What is the last month it snows in Mississauga?

May is the last month it regularly snows in Mississauga. During 0.3 snowfall days, in May, Mississauga aggregates 5mm (0.2") of snow.

How cold is the water in May in Mississauga?

In May, the average sea temperature in Mississauga, Canada, is 6°C (42.8°F). Swimming in 6°C (42.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in May in Mississauga?

The average day length in May in Mississauga, Canada, is 14h and 44min.

When are sunrise and sunset in May in Mississauga?

In May, on the first day of the month, sunrise is at 6:09 am and sunset at 8:21 pm. On the last day of the month, in Mississauga, Canada, sunrise is at 5:40 am and sunset at 8:52 pm EDT.

How long on average sun shines in May in Mississauga?

In May, the average sunshine duration in Mississauga, Canada, is 9.2h.

How high is the UV index in May in Mississauga?

The average daily maximum UV index in May in Mississauga, Canada, is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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 temperature in May
Mississauga, Canada

Average temperature in May - Mississauga, Canada
  • Average high temperature in May: 16.2°C

The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (-1.4°C).

  • Average low temperature in May: 9.3°C

The month with the highest average low temperature is July (18.6°C).
The coldest month (with the lowest average low temperature) is January (-6.1°C).

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Average pressure in May
Mississauga, Canada

Average pressure in May - Mississauga, Canada
  • Average pressure in May: 1015.4mbar

The month with the highest atmospheric pressure is November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).

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Average wind speed in May
Mississauga, Canada

Average wind speed in May - Mississauga, Canada
  • Average wind speed in May: 13.6km/h

The windiest month (with the highest average wind speed) is January (21km/h).
The calmest month (with the lowest average wind speed) is July (12.1km/h).

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Average humidity in May
Mississauga, Canada

Average humidity in May - Mississauga, Canada
  • Average humidity in May: 78%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is September (74%).

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Average rainfall in May
Mississauga, Canada

Average rainfall in May - Mississauga, Canada
  • Average rainfall in May: 79mm

The wettest month (with the highest rainfall) is July (80mm).
The driest months (with the least rainfall) are September and November (55mm).

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Average rainfall days in May
Mississauga, Canada

Average rainfall days in May - Mississauga, Canada
  • Average rainfall days in May: 17.6 days

The month with the highest number of rainy days is October (18.9 days).
The month with the least rainy days is February (8.8 days).

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Average snowfall in May
Mississauga, Canada

Average snowfall in May - Mississauga, Canada
  • Average snowfall in May: 5mm

The month with the highest snowfall is February (127mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in May
Mississauga, Canada

Average snowfall days in May - Mississauga, Canada
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in May
Mississauga, Canada

Average sea temperature in May - Mississauga, Canada
  • Average sea temperature in May: 6°C

The best month for swimming (with the highest average sea temperature) is August (22.3°C).
The coldest months (with the lowest average sea temperature) are February and March (1.4°C).

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

Average daylight in May / Average sunshine in May - Mississauga, Canada
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

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Average sunshine days in May
Mississauga, Canada

Average sunshine days in May - Mississauga, Canada
  • Average sunshine days in May: 11.5 days

The month with the most sunshine days is September (13 days).
The month with the least sunshine days is January (7.5 days).

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Average UV index in May
Mississauga, Canada

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

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in May
Mississauga, Canada

Average cloud cover in May - Mississauga, Canada
  • Average cloud cover in May: 39

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in May
Mississauga, Canada

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

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and February (8km).

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Mississauga, Canada

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