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
The coldest period tends to be December, when average temperatures fluctuate between a high of 43.2°F (6.2°C) and a low of 34.9°F (1.6°C).Humidity
December is the most humid month in Port Orchard, with an average relative humidity of 87%.Rainfall
The months with the most rainfall are January and December, with an average 2.05" (52mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Port Orchard. In December, in Port Orchard, Washington, it is snowing for 1 days. Throughout December, 0.12" (3mm) of snow is accumulated. Throughout the year, there are 7 snowfall days, and 2.36" (60mm) of snow is accumulated.Ocean temperature
In Port Orchard, the average seawater temperature in December is 46.6°F (8.1°C).Note: With the appropriate swimsuit, one can swim in 46.6°F (8.1°C) even if temperatures dip below 50°F (10°C); otherwise, be ready for cold shock and breath issues. A fleeting swim around 55.4°F (13°C) is distressing.
Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 7:38 am and sunset at 4:21 pm. On the last day of December, in Port Orchard, sunrise is at 7:58 am and sunset at 4:29 pm PST.
Sunshine
With an average of 4.1h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Avoiding the Sun during its peak radiation time around midday is a healthy practice. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Port Orchard?
How cold does it get in Port Orchard in December?
What is the most humid month in Port Orchard?
What is the average humidity in December in Port Orchard?
What is the wettest month in Port Orchard?
How much does it rain in Port Orchard in December?
How many days does it snow in December in Port Orchard?
What is the ocean temperature in December in Port Orchard?
What is the month with the shortest days in Port Orchard?
How many hours of daylight does Port Orchard have in December?
When are sunrise and sunset in December in Port Orchard?
What is the month with the least sunshine in Port Orchard?
How many hours of sunshine does Port Orchard have in December?
When is the lowest UV index in Port Orchard?
What is the UV index reading in December in Port Orchard?
Average temperature in December
Port Orchard, WA
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is August (77.2°F).
The month with the lowest average high temperature is December (43.2°F).
- Average low temperature in December: 34.9°F
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.9°F).
Average pressure in December
Port Orchard, WA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in December
Port Orchard, WA
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is March (5.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).
Average humidity in December
Port Orchard, WA
- Average humidity in December: 87%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Port Orchard, WA
- Average rainfall in December: 2.05"
The wettest months (with the highest rainfall) are January and December (2.05").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in December
Port Orchard, WA
- Average rainfall days in December: 14.3 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (5.4 days).
Average snowfall in December
Port Orchard, WA
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Port Orchard, WA
- Average snowfall days in December: 1 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Port Orchard, WA
- Average sea temperature in December: 46.6°F
The best month for swimming (with the highest average sea temperature) is August (53.2°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).
Average daylight in December /
Average sunshine in December
Port Orchard, WA
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in December
Port Orchard, WA
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (11.8 days).
Average UV index in December
Port Orchard, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Port Orchard, WA
- Average cloud cover in December: 58
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Port Orchard, WA
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).
Port Orchard, Washington, USA
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