August weather forecast
Cannon Beach, OR

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Weather in August

August in Cannon Beach sustains the summer's heat and dry theme. The city relishes in long, sunny, warm days coupled with pleasantly cool evenings. Though rainfall inches slightly higher than July's low, the number of rainy days remains constant. Cooling sea temperament provides respite from the summer heatwave. Besides, a gentler wind regime prevails, as evidenced by the 10.1mph (16.3km/h) gusts.

Temperature

August, with average temperatures reaching a high of 65.5°F (18.6°C) and a low of 55°F (12.8°C), is the warmest month.

Humidity

With an average relative humidity of 84%, August is the most humid month.

Rainfall

The months with the least rainfall are July and August Rain falls for 7.3 days and accumulates 0.47" (12mm) of rain.

Snowfall

April through November are months without snowfall.

Ocean temperature

In August, the average ocean temperature is 56.8°F (13.8°C).
Note: Beware of 56.8°F (13.8°C) waters at 55.4°F (13°C), they're uninviting, and a dip below 50°F (10°C) has risks of breath loss and cold shock, contingent on health.

Daylight

The average length of the day in August is 14h and 5min.
On the first day of August, sunrise is at 5:59 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:55 pm PDT.

Sunshine

With an average of 10h of sunshine, August has the most sunshine of the year.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 4 in August translates into these instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

What are the warmest months?

Cannon Beach's temperatures peak on average in August, reaching 65.5°F (18.6°C) at their highest and 55°F (12.8°C) at their lowest.

What is the average August temperature?

Cannon Beach in August has an average high-temperature of 65.5°F (18.6°C) and an average low-temperature of 55°F (12.8°C).

What is the most humid month?

The most humid month is August, with an average relative humidity of 84%.

What is the average humidity in August?

The average relative humidity in August is 84%.

What is the driest month?

The months with the least rainfall are July and August Rain falls for 7.3 days and accumulates 0.47" (12mm) of rain.

How many days does it rain in August?

In Cannon Beach, during August, the rain falls for 7.3 days and regularly aggregates up to 0.47" (12mm) of precipitation.

When it does not snow?

In Cannon Beach, snow does not fall in April through November.

What is the ocean temperature in August?

In Cannon Beach, the average seawater temperature in August is 56.8°F (13.8°C). Swimming in 56.8°F (13.8°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Cannon Beach have in August?

In Cannon Beach, the average day length in August is 14h and 5min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:59 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:55 pm PDT.

What month has the most sunshine?

With an average of 10h of sunshine, August has the most sunshine of the year.

How many hours of sunshine does Cannon Beach have in August?

The average sunshine duration in August is 10h.

When is the highest UV index?

May through September, with an average maximum UV index of 4, are months with the highest UV index.

How high is the UV index in August?

In August, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
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 August
Cannon Beach, OR

Average temperature in August - Cannon Beach, OR
  • Average high temperature in August: 65.5°F

The warmest month (with the highest average high temperature) is August (65.5°F).
The month with the lowest average high temperature is December (46.6°F).

  • Average low temperature in August: 55°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).

Average pressure in August
Cannon Beach, OR

Average pressure in August - Cannon Beach, OR
  • Average pressure in August: 30.03"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.02"Hg).

Average wind speed in August
Cannon Beach, OR

Average wind speed in August - Cannon Beach, OR
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in August
Cannon Beach, OR

Average humidity in August - Cannon Beach, OR
  • Average humidity in August: 84%

The month with the highest relative humidity is August (84%).
The months with the lowest relative humidity are January, March, April, May, October and December (81%).

Average rainfall in August
Cannon Beach, OR

Average rainfall in August - Cannon Beach, OR
  • Average rainfall in August: 0.47"

The wettest month (with the highest rainfall) is December (6.54").
The driest months (with the least rainfall) are July and August (0.47").

Average rainfall days in August
Cannon Beach, OR

Average rainfall days in August - Cannon Beach, OR
  • Average rainfall days in August: 7.3 days

The month with the highest number of rainy days is March (20.8 days).
The months with the least rainy days are July and August (7.3 days).

Average snowfall in August
Cannon Beach, OR

Average snowfall in August - Cannon Beach, OR
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Cannon Beach, OR

Average snowfall days in August - Cannon Beach, OR
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average sea temperature in August
Cannon Beach, OR

Average sea temperature in August - Cannon Beach, OR
  • Average sea temperature in August: 56.8°F

The best month for swimming (with the highest average sea temperature) is July (57.2°F).
The coldest month (with the lowest average sea temperature) is February (48.1°F).

Average daylight in August /
Average sunshine in August
Cannon Beach, OR

Average daylight in August / Average sunshine in August - Cannon Beach, OR
  • Average daylight in August: 14h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).

Average sunshine days in August
Cannon Beach, OR

Average sunshine days in August - Cannon Beach, OR
  • Average sunshine days in August: 21.2 days

The month with the most sunshine days is August (21.2 days).
The month with the least sunshine days is February (7.5 days).

Average UV index in August
Cannon Beach, OR

Average UV index in August - Cannon Beach, OR
  • Average UV index in August: 4

The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are February, November and December (UV index 2).

Average cloud cover in August
Cannon Beach, OR

Average cloud cover in August - Cannon Beach, OR
  • Average cloud cover in August: 35

The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in August
Cannon Beach, OR

Average visibility in August - Cannon Beach, OR
  • Average visibility in August: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

Cannon Beach, Oregon, USA

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