Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Cannon Beach's coldest month, December, generally records average temperatures ranging from a high of 46.6°F (8.1°C) to a low of 40.5°F (4.7°C).Humidity
January, March through May, October and December, with an average relative humidity of 81%, are the least humid months in Cannon Beach, Oregon.Rainfall
December is the month with the most rainfall. Rain falls for 20.7 days and accumulates 6.54" (166mm) of precipitation.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Cannon Beach, during the entire year, snow falls for 2.8 days and aggregates up to 1.3" (33mm) of snow.Ocean temperature
In Cannon Beach, in December, the average water temperature is 50°F (10°C).Note: Swimming in 50°F (10°C) is deemed hazardous. Exposure to temperatures below 50°F (10°C) leads to immediate severe cold shock and hyperventilation.
Daylight
December has the shortest days of the year, with an average of 8h and 42min of daylight.On the first day of December in Cannon Beach, sunrise is at 7:37 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 4:41 pm PST.
Sunshine
The average sunshine in December is 4.2h.UV index
The months with the lowest UV index are February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Boost your sun resistance with garments that are densely woven yet spacious. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
What time of the year is the coldest in Cannon Beach?
What is the usual temperature for Cannon Beach in December?
What are the least humid months in Cannon Beach?
What is the average humidity in December in Cannon Beach?
What is the rainiest month in Cannon Beach?
How many days does it rain in December in Cannon Beach?
When does it start snowing in Cannon Beach?
What is the ocean temperature in December in Cannon Beach?
What is the month with the shortest days in Cannon Beach?
How many hours of daylight does Cannon Beach have in December?
When are sunrise and sunset in December in Cannon Beach?
How many hours of sunshine does Cannon Beach have in December?
When is the lowest UV index in Cannon Beach?
What is the UV index reading in December in Cannon Beach?
Average temperature in December
Cannon Beach, OR
- Average high temperature in December: 46.6°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 December: 40.5°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 December
Cannon Beach, OR
- Average pressure in December: 30.06"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 December
Cannon Beach, OR
- Average wind speed in December: 10.5mph
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 December
Cannon Beach, OR
- Average humidity in December: 81%
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 December
Cannon Beach, OR
- Average rainfall in December: 6.54"
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 December
Cannon Beach, OR
- Average rainfall days in December: 20.7 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 December
Cannon Beach, OR
- Average snowfall in December: 0.04"
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 December
Cannon Beach, OR
- Average snowfall days in December: 0.3 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 December
Cannon Beach, OR
- Average sea temperature in December: 49.9°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 December /
Average sunshine in December
Cannon Beach, OR
- Average daylight in December: 8h and 4min
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 December: 4h and 1min
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 December
Cannon Beach, OR
- Average sunshine days in December: 8.8 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 December
Cannon Beach, OR
- Average UV index in December: 2
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 December
Cannon Beach, OR
- Average cloud cover in December: 56
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 December
Cannon Beach, OR
- Average visibility in December: 6mi
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
Weather forecast for your location
2. Allow the app to use your location
