December weather forecastOakville, Canada
December
Weather in December
The first month of the winter, December, is also a wintry month in Oakville, Canada, with an average temperature fluctuating between -2.3°C (27.9°F) and 1.5°C (34.7°F).Temperature
Onset of December witnesses a reduction in the average high-temperature, falling from a chilly 7.1°C (44.8°F) in November to an icy 1.5°C (34.7°F). Oakville experiences a steady nighttime temperature of -2.3°C (27.9°F) throughout the month of December.Humidity
In Oakville, the average relative humidity in December is 81%.Rainfall
In Oakville, during December, the rain falls for 6.8 days and regularly aggregates up to 11mm (0.43") of precipitation. Throughout the year, in Oakville, there are 100.7 rainfall days, and 160mm (6.3") of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In December, it is snowing for 8.8 days. Throughout December, 11mm (0.43") of snow is accumulated. In Oakville, during the entire year, snow falls for 41.2 days and aggregates up to 101mm (3.98") of snow.Sea temperature
In Oakville, the average seawater temperature in December is 4.8°C (40.6°F).Note: While participating in swimming, this is a serious life-threatening situation. Breathing becomes unmanageable, making lucid thinking almost impossible. The use of a specialized swimsuit is crucial to control thermal loss.
Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:32 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 4:52 pm EST.
Sunshine
The average sunshine in December is 3.5h.UV index
The months with the lowest UV index in Oakville are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 1 during December translates into the following directions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Oakville, Canada
- Average high temperature in December: 1.5°C
The warmest month (with the highest average high temperature) is July (25.1°C).
The month with the lowest average high temperature is January (-2.2°C).
- Average low temperature in December: -2.3°C
The month with the highest average low temperature is July (18.2°C).
The coldest month (with the lowest average low temperature) is January (-6.9°C).
Average pressure in December
Oakville, Canada
- Average pressure in December: 1017.6mbar
The month with the highest atmospheric pressure is March (1018.4mbar).
The month with the lowest atmospheric pressure is June (1013.2mbar).
Average wind speed in December
Oakville, Canada
- Average wind speed in December: 18.6km/h
The windiest month (with the highest average wind speed) is January (19.6km/h).
The calmest month (with the lowest average wind speed) is July (11.7km/h).
Average humidity in December
Oakville, Canada
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are April, July, August and September (75%).
Average rainfall in December
Oakville, Canada
- Average rainfall in December: 11mm
The wettest month (with the highest rainfall) is July (18mm).
The driest month (with the least rainfall) is September (8mm).
Average rainfall days in December
Oakville, Canada
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is July (11.4 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in December
Oakville, Canada
- Average snowfall in December: 11mm
The month with the highest snowfall is February (36mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Oakville, Canada
- Average snowfall days in December: 8.8 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Oakville, Canada
- Average sea temperature in December: 4.8°C
The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (1.2°C).
Average daylight in December /
Average sunshine in December
Oakville, Canada
- Average daylight in December: 9h and 0min
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 December: 3h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Oakville, Canada
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is September (20.5 days).
The month with the least sunshine days is July (14.1 days).
Average UV index in December
Oakville, Canada
- Average UV index in December: 1
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).
Average cloud cover in December
Oakville, Canada
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Oakville, Canada
- Average visibility in December: 9km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (9km).
