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
Temperature readings reach their annual highs in December, averaging 46.2°F (7.9°C) and a minimum average of 40.1°F (4.5°C).Humidity
In December, the average relative humidity in Rockaway Beach is 81%.Rainfall
The month with the most rainfall in Rockaway Beach is December, when the rain falls for 14.9 days and typically aggregates up to 2.13" (54mm) of precipitation.Snowfall
In Rockaway Beach, snow does not fall in March through December.Ocean temperature
In Rockaway Beach, Oregon, in December, the average water temperature is 50°F (10°C).Note: Beware when you're in 50°F (10°C) waters; 55.4°F (13°C) is chilling and anything below 50°F (10°C) could cause breathing hindrance and a sudden cold shock, given your physical condition.
Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.On the first day of December in Rockaway Beach, Oregon, sunrise is at 7:36 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 4:42 pm PST.
Sunshine
The average sunshine in December in Rockaway Beach is 4.3h.UV index
February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rockaway Beach. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the coldest month in Rockaway Beach?
What is the temperature in December in Rockaway Beach?
What is the average humidity in December in Rockaway Beach?
What is the wettest month in Rockaway Beach?
How much does it rain in Rockaway Beach in December?
When it does not snow in Rockaway Beach?
Does it snow in Rockaway Beach in December?
What is the water temperature in December in Rockaway Beach?
What is the month with the shortest days in Rockaway Beach?
How many hours of daylight does Rockaway Beach have in December?
What time are sunrise and sunset in December in Rockaway Beach?
How long on average sun shines in December in Rockaway Beach?
What is the month with the lowest UV index in Rockaway Beach?
What is the UV index reading in December in Rockaway Beach?
Average temperature in December
Rockaway Beach, OR
- Average high temperature in December: 46.2°F
The warmest month (with the highest average high temperature) is August (66.2°F).
The month with the lowest average high temperature is December (46.2°F).
- Average low temperature in December: 40.1°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in December
Rockaway Beach, OR
- Average pressure in December: 30.07"Hg
The months with the highest atmospheric pressure are January and April (30.08"Hg).
The month with the lowest atmospheric pressure is September (30.02"Hg).
Average wind speed in December
Rockaway Beach, OR
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Rockaway Beach, OR
- Average humidity in December: 81%
The month with the highest relative humidity is August (83%).
The month with the lowest relative humidity is May (80%).
Average rainfall in December
Rockaway Beach, OR
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is December (2.13").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in December
Rockaway Beach, OR
- Average rainfall days in December: 14.9 days
The month with the highest number of rainy days is March (16.1 days).
The month with the least rainy days is August (4.4 days).
Average snowfall in December
Rockaway Beach, OR
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Rockaway Beach, OR
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in December
Rockaway 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
Rockaway Beach, OR
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 0min).
Average sunshine days in December
Rockaway Beach, OR
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is March (12.4 days).
Average UV index in December
Rockaway Beach, OR
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in December
Rockaway Beach, OR
- Average cloud cover in December: 55
The months with the most cloud cover are January and March (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Rockaway Beach, OR
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Rockaway Beach, Oregon, USA
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