August weather forecast
Stephenville, Canada

August

Weather in August

The last month of the summer, August, is another refreshing month in Stephenville, Canada, with an average temperature ranging between min 13.6°C (56.5°F) and max 19.9°C (67.8°F).

Temperature

The month of August sees the highest average temperatures, reaching 19.9°C (67.8°F) at the peak and 13.6°C (56.5°F) at the low.

Humidity

In Stephenville, the average relative humidity in August is 81%.

Rainfall

In Stephenville, in August, during 14.3 rainfall days, 53mm (2.09") of precipitation is typically accumulated. In Stephenville, Canada, during the entire year, the rain falls for 126.7 days and collects up to 629mm (24.76") of precipitation.

Snowfall

In Stephenville, snow does not fall in June through September.

Sea temperature

The month with the warmest seawater is August, with an average sea temperature of 15.5°C (59.9°F).
Note: Most individuals do not find swimming at 15.5°C (59.9°F) to be enjoyable. As the water temperature declines below 21°C (69.8°F), maintaining control over one's breathing becomes harder.

Daylight

In Stephenville, the average length of the day in August is 14h and 17min.
On the first day of August in Stephenville, sunrise is at 5:59 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 8:07 pm NDT.

Sunshine

August has the most sunshine of the year, with an average of 8.7h of sunshine.

UV index

The average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 4 in August transforms into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

What is the hottest time of year in Stephenville?
Stephenville experiences its average highest temperatures in August, reaching a peak of 19.9°C (67.8°F) and a minimum of 13.6°C (56.5°F).
What are the temperatures in Stephenville in August?
An average high-temperature, in August, in Stephenville, is 19.9°C (67.8°F) and the average low-temperature is 13.6°C (56.5°F).
What is the average humidity in August in Stephenville?
The average relative humidity in August is 81%.
How many days does it rain in August in Stephenville?
In Stephenville, Canada, in August, during 14.3 rainfall days, 53mm (2.09") of precipitation is typically accumulated.
When it does not snow in Stephenville?
In Stephenville, snow does not fall in June through September.
What is the month with the warmest sea water in Stephenville?
The month with the warmest seawater in Stephenville is August, with an average sea temperature of 15.5°C (59.9°F).
What is the sea temperature in August in Stephenville?
In Stephenville, Canada, in August, the average water temperature is 15.5°C (59.9°F). For most, swimming in 15.5°C (59.9°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
How many hours of daylight does Stephenville have in August?
In Stephenville, the average day length in August is 14h and 17min.
What time are sunrise and sunset in August in Stephenville?
On the first day of August, sunrise is at 5:59 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 8:07 pm NDT.
What month has the most sunshine in Stephenville?
With an average of 8.7h of sunshine, August has the most sunshine of the year in Stephenville, Canada.
How many hours of sunshine does Stephenville have in August?
The average sunshine duration in August in Stephenville is 8.7h.
What is the UV index intensity in August in Stephenville?
The average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in August
Stephenville, Canada
  • Average high temperature in August: 19.9°C

The warmest month (with the highest average high temperature) is August (19.9°C).
The month with the lowest average high temperature is February (-3.1°C).

  • Average low temperature in August: 13.6°C

The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is February (-8.8°C).

Average pressure in August
Stephenville, Canada
  • Average pressure in August: 1013.2mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is January (1008.6mbar).

Average wind speed in August
Stephenville, Canada
  • Average wind speed in August: 15.5km/h

The windiest month (with the highest average wind speed) is January (24.8km/h).
The calmest month (with the lowest average wind speed) is July (14.9km/h).

Average humidity in August
Stephenville, Canada
  • Average humidity in August: 81%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is June (80%).

Average rainfall in August
Stephenville, Canada
  • Average rainfall in August: 53mm

The wettest month (with the highest rainfall) is November (67mm).
The driest month (with the least rainfall) is March (41mm).

Average rainfall days in August
Stephenville, Canada
  • Average rainfall days in August: 14.3 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is February (4.1 days).

Average snowfall in August
Stephenville, Canada
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (143mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in August
Stephenville, Canada
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in August
Stephenville, Canada
  • Average sea temperature in August: 15.5°C

The best month for swimming (with the highest average sea temperature) is August (15.5°C).
The coldest month (with the lowest average sea temperature) is March (-0.3°C).

Average daylight in August /
Average sunshine in August
Stephenville, Canada
  • Average daylight in August: 14h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in August: 8h and 4min

The month with the most sunshine is August (Average sunshine: 8h and 42min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).

Average sunshine days in August
Stephenville, Canada
  • Average sunshine days in August: 14.6 days

The month with the most sunshine days is June (16.1 days).
The month with the least sunshine days is February (9 days).

Average UV index in August
Stephenville, Canada
  • Average UV index in August: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in August
Stephenville, Canada
  • Average cloud cover in August: 42

The month with the most cloud cover is January (Cloud cover 84).
The month with the least cloud cover is August (Cloud cover 42).

Average visibility in August
Stephenville, Canada
  • Average visibility in August: 9km

The months with the highest visibility are March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February and December (8km).

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