August weather forecastOshawa, Canada
August
Weather in August
August continues the summer trend set by July, but with a marginal decrease in temperature. The climate remains largely warm and inviting, and sea temperatures peak, making it ideal for swimming and watersports. Despite being in the latter half of summer, rainfall remains a common feature throughout the month. The city enjoys a healthy measure of sunshine, enabling festive outdoor gatherings and activities.Temperature
The advent of August sees the average high-temperature at a still moderately hot 23.8°C (74.8°F), subtly shifted from July's 24.4°C (75.9°F). In the month of August, the nighttime temperature dips to a steady average of 16.8°C (62.2°F).Humidity
In August, the average relative humidity in Oshawa is 78%.Rainfall
The month with the most rainfall in Oshawa, Canada, is August, when the rain falls for 17.1 days and typically aggregates up to 73mm (2.87") of precipitation.Snowfall
May through October are months without snowfall in Oshawa.Sea temperature
August is the month with the warmest seawater in Oshawa, with an average sea temperature of 22.4°C (72.3°F).Note: Every individual's cold threshold differs, but factors like today's sunshine, wind, and temperature can tip the scales for a delightful swim in 22.4°C (72.3°F) waters. For reference, Olympians swim in waters of 25°C (77°F) to 28°C (82.4°F).
Daylight
The average length of the day in August is 13h and 57min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:38 pm. On the last day of August, sunrise is at 6:38 am and sunset at 7:52 pm EDT.
Sunshine
In Oshawa, the average sunshine in August is 10.4h.UV index
In Oshawa, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In August, the UV index of 5 transforms into the following advice:
Ensure safety - Sun damage prevention is strongly urged. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Oshawa, Canada
- Average high temperature in August: 23.8°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 August: 16.8°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).
Average pressure in August
Oshawa, Canada
- Average pressure in August: 1014.4mbar
The month with the highest atmospheric pressure is March (1018.3mbar).
The month with the lowest atmospheric pressure is June (1013mbar).
Average wind speed in August
Oshawa, Canada
- Average wind speed in August: 11.9km/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).
Average humidity in August
Oshawa, Canada
- Average humidity in August: 78%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Oshawa, Canada
- Average rainfall in August: 73mm
The wettest month (with the highest rainfall) is August (73mm).
The driest months (with the least rainfall) are February and November (43mm).
Average rainfall days in August
Oshawa, Canada
- Average rainfall days in August: 17.1 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).
Average snowfall in August
Oshawa, Canada
- Average snowfall in August: 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).
Average snowfall days in August
Oshawa, Canada
- Average snowfall days in August: 0 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).
Average sea temperature in August
Oshawa, Canada
- Average sea temperature in August: 22.4°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).
Average daylight in August /
Average sunshine in August
Oshawa, 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 24min
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).
Average sunshine days in August
Oshawa, Canada
- Average sunshine days in August: 11.3 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).
Average UV index in August
Oshawa, Canada
- Average UV index in August: 5
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).
Average cloud cover in August
Oshawa, Canada
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Oshawa, Canada
- Average visibility in August: 10km
The months with the highest visibility are August and September (10km).
The month with the lowest visibility is January (8km).
