August weather forecastOakville, Canada
August
Weather in August
August, the last month of the summer in Oakville, is also a moderately hot month, with an average temperature varying between 17.9°C (64.2°F) and 24.8°C (76.6°F).Temperature
On the advent of August, Oakville's average high-temperature exhibits a minor adjustment to a still warm 24.8°C (76.6°F) from July's 25.1°C (77.2°F). Nighttime temperatures hover around an average low of 17.9°C (64.2°F) in August.Humidity
The months with the lowest humidity are April, July through September, with an average relative humidity of 75%.Rainfall
In Oakville, in August, it is raining for 10.2 days, with typically 15mm (0.59") of accumulated precipitation. In Oakville, during the entire year, the rain falls for 100.7 days and collects up to 160mm (6.3") of precipitation.Snowfall
In Oakville, snow does not fall in June through October.Sea temperature
The month with the warmest seawater in Oakville is August, with an average sea temperature of 23.4°C (74.1°F).Note: Imagine a swim in 23.4°C (74.1°F) waters. How you'd feel depends on your cold sensitivity, the sun's rays, the caress of the wind, and the warmth enveloping you. Comparatively, Olympic swimmers train in waters between 25°C (77°F) and 28°C (82.4°F).
Daylight
The average length of the day in August in Oakville is 13h and 55min.On the first day of August, sunrise is at 6:09 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:55 pm EDT.
Sunshine
In August, the average sunshine in Oakville is 10.5h.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index in Oakville. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: In August, the maximum UV index of 6 suggests these recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Caution! The reflection of sand and water significantly increases 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 August
Oakville, Canada
- Average high temperature in August: 24.8°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 August: 17.9°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 August
Oakville, Canada
- Average pressure in August: 1014.6mbar
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 August
Oakville, Canada
- Average wind speed in August: 12.5km/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 August
Oakville, Canada
- Average humidity in August: 75%
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 August
Oakville, Canada
- Average rainfall in August: 15mm
The wettest month (with the highest rainfall) is July (18mm).
The driest month (with the least rainfall) is September (8mm).
Average rainfall days in August
Oakville, Canada
- Average rainfall days in August: 10.2 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 August
Oakville, Canada
- Average snowfall in August: 0mm
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 August
Oakville, Canada
- Average snowfall days in August: 0 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 August
Oakville, Canada
- Average sea temperature in August: 23.4°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 August /
Average sunshine in August
Oakville, Canada
- Average daylight in August: 13h and 54min
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 August: 10h 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 August
Oakville, Canada
- Average sunshine days in August: 14.9 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 August
Oakville, Canada
- Average UV index in August: 6
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 August
Oakville, Canada
- Average cloud cover in August: 26
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 August
Oakville, Canada
- Average visibility in August: 10km
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).





