May weather forecast
Oshawa, Canada

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Weather in May

May brings about a significant transformation in weather patterns, introducing warm and sunny conditions to Oshawa. The city basks in moderate warmth with high temperatures averaging 15.7°C (60.3°F). Abundant sunshine coupled with decent visibility enhances the appeal of the outdoors, inviting citizens to enjoy picnics and leisure strolls. Mild winds and a moderate sea temperature signals the propitious onset of summer activities.

Temperature

The beginning of May in Oshawa marks a shift in the average high-temperature, moving from April's frosty 8.8°C (47.8°F) to a refreshing 15.7°C (60.3°F). Throughout May, Oshawa witnesses a nighttime temperature average of 8°C (46.4°F).

Humidity

In May, the average relative humidity is 77%.

Rainfall

In Oshawa, during May, the rain falls for 16.4 days and regularly aggregates up to 70mm (2.76") of precipitation. In Oshawa, during the entire year, the rain falls for 158.8 days and collects up to 693mm (27.28") of precipitation.

Snowfall

May through October are months without snowfall.

Sea temperature

In Oshawa, in May, the average water temperature is 5.8°C (42.4°F).
Note: Swimming in 5.8°C (42.4°F) feels unbearing at 13°C (55.4°F) and can be life-risking below 10°C (50°F), causing breathing issues and cold shock, depending on a person's capacity.

Daylight

In May, the average length of the day is 14h and 46min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:18 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:50 pm EDT.

Sunshine

The average sunshine in May in Oshawa is 8.8h.

UV index

The average daily maximum UV index in May in Oshawa is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 4 in May leads to these recommendations:
Adopt protective measures - It is advised to guard against sun damage. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

What is the temperature in May in Oshawa?

The average high-temperature, in May, in Oshawa, is 15.7°C (60.3°F), while the average low-temperature is 8°C (46.4°F).

What is the average humidity in May in Oshawa?

In May, the average relative humidity is 77%.

How many days does it rain in May in Oshawa?

In Oshawa, Canada, in May, it is raining for 16.4 days, with typically 70mm (2.76") of accumulated precipitation.

When it does not snow in Oshawa?

May through October are months without snowfall.

Does it snow in Oshawa in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the sea water temperature in May in Oshawa?

In May, the average sea temperature in Oshawa, Canada, is 5.8°C (42.4°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

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

The average day length in May in Oshawa, Canada, is 14h and 46min.

What time are sunrise and sunset in May in Oshawa?

In May, on the first day of the month, sunrise is at 6:06 am and sunset at 8:18 pm. On the last day of the month, in Oshawa, sunrise is at 5:35 am and sunset at 8:50 pm EDT.

How many hours of sunshine does Oshawa have in May?

The average sunshine duration in May is 8.8h.

How high is the UV index in May in Oshawa?

In May, the average daily maximum UV index in Oshawa is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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
Oshawa, Canada

Average temperature in May - Oshawa, Canada
  • Average high temperature in May: 15.7°C

The warmest month (with the highest average high temperature) is July (24.4°C).
The month with the lowest average high temperature is January (-2.9°C).

  • Average low temperature in May: 8°C

The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is January (-8.3°C).

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Average pressure in May
Oshawa, Canada

Average pressure in May - Oshawa, Canada
  • Average pressure in May: 1015.2mbar

The month with the highest atmospheric pressure is March (1018.3mbar).
The month with the lowest atmospheric pressure is June (1013mbar).

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Average wind speed in May
Oshawa, Canada

Average wind speed in May - Oshawa, Canada
  • Average wind speed in May: 13.2km/h

The windiest month (with the highest average wind speed) is January (18.7km/h).
The calmest month (with the lowest average wind speed) is July (11.4km/h).

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Average humidity in May
Oshawa, Canada

Average humidity in May - Oshawa, Canada
  • Average humidity in May: 77%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in May
Oshawa, Canada

Average rainfall in May - Oshawa, Canada
  • Average rainfall in May: 70mm

The wettest month (with the highest rainfall) is August (73mm).
The driest months (with the least rainfall) are February and November (43mm).

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Average rainfall days in May
Oshawa, Canada

Average rainfall days in May - Oshawa, Canada
  • Average rainfall days in May: 16.4 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (7.3 days).

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Average snowfall in May
Oshawa, Canada

Average snowfall in May - Oshawa, Canada
  • Average snowfall in May: 0mm

The month with the highest snowfall is February (110mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in May
Oshawa, Canada

Average snowfall days in May - Oshawa, Canada
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (13.8 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
Oshawa, Canada

Average sea temperature in May - Oshawa, Canada
  • Average sea temperature in May: 5.8°C

The best month for swimming (with the highest average sea temperature) is August (22.4°C).
The coldest month (with the lowest average sea temperature) is March (2.3°C).

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

Average daylight in May / Average sunshine in May - Oshawa, Canada
  • Average daylight in May: 14h and 5min

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: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in May
Oshawa, Canada

Average sunshine days in May - Oshawa, Canada
  • Average sunshine days in May: 12.6 days

The month with the most sunshine days is November (14.9 days).
The month with the least sunshine days is July (10.4 days).

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Average UV index in May
Oshawa, Canada

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

The month with the highest UV index is July (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
Oshawa, Canada

Average cloud cover in May - Oshawa, Canada
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in May
Oshawa, Canada

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

The months with the highest visibility are August and September (10km).
The month with the lowest visibility is January (8km).

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Oshawa, Canada

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