Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Coupeville's weather in January, with an average high-temperature of a still frosty 45°F (7.2°C), subtly shifts from December's 43.7°F (6.5°C). January introduces a small decrease to a nighttime average of 38.8°F (3.8°C) in Coupeville, Washington.Humidity
The months with the highest humidity in Coupeville are January through March, with an average relative humidity of 81%.Rainfall
In Coupeville, during January, the rain falls for 18.5 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, there are 183.8 rainfall days, and 24.45" (621mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In January, it is snowing for 2.1 days. Throughout January, 1.02" (26mm) of snow is accumulated. In Coupeville, during the entire year, snow falls for 9.6 days and aggregates up to 5.63" (143mm) of snow.Ocean temperature
The months with the coldest seawater in Coupeville are January, February and April, with an average ocean temperature of 45.1°F (7.3°C).Note: You can swim in 45.1°F (7.3°C) below 50°F (10°C) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 55.4°F (13°C) without it is tough.
Daylight
In January, the average length of the day in Coupeville is 8h and 53min.On the first day of the month, sunrise is at 8:01 am and sunset at 4:27 pm. On the last day of January, sunrise is at 7:40 am and sunset at 5:08 pm PST.
Sunshine
In January, the average sunshine in Coupeville is 4.7h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Coupeville. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the temperature in January in Coupeville?
What are the most humid months in Coupeville?
What is the average humidity in January in Coupeville?
How many days does it rain in January in Coupeville?
How many days does it snow in January in Coupeville?
When is the ocean coldest in Coupeville?
How cold is the water in January in Coupeville?
What is the average length of the day in January in Coupeville?
When is the sunrise / sunset in January in Coupeville?
How long on average sun shines in January in Coupeville?
What is the month with the lowest UV index in Coupeville?
How high is the UV index in January in Coupeville?
Average temperature in January
Coupeville, WA
- Average high temperature in January: 45°F
The warmest month (with the highest average high temperature) is July (66.2°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in January: 38.8°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is February (37.9°F).
Average pressure in January
Coupeville, WA
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in January
Coupeville, WA
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is November (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in January
Coupeville, WA
- Average humidity in January: 81%
The months with the highest relative humidity are January, February and March (81%).
The month with the lowest relative humidity is July (76%).
Average rainfall in January
Coupeville, WA
- Average rainfall in January: 2.72"
The wettest month (with the highest rainfall) is November (3.46").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in January
Coupeville, WA
- Average rainfall days in January: 18.5 days
The month with the highest number of rainy days is March (21.1 days).
The month with the least rainy days is August (7.5 days).
Average snowfall in January
Coupeville, WA
- Average snowfall in January: 1.02"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Coupeville, WA
- Average snowfall days in January: 2.1 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in January
Coupeville, WA
- Average sea temperature in January: 45.1°F
The best month for swimming (with the highest average sea temperature) is August (53°F).
The coldest month (with the lowest average sea temperature) is February (45°F).
Average daylight in January /
Average sunshine in January
Coupeville, WA
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January: 4h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in January
Coupeville, WA
- Average sunshine days in January: 10.3 days
The month with the most sunshine days is August (21.7 days).
The month with the least sunshine days is March (7.5 days).
Average UV index in January
Coupeville, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Coupeville, WA
- Average cloud cover in January: 51
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in January
Coupeville, WA
- Average visibility in January: 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).
Coupeville, Washington, USA
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