Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The advent of April sees the average high-temperature at a fresh 52.3°F (11.3°C), subtly shifted from March's 48.6°F (9.2°C). Coupeville's nighttime temperature in April consistently rests at a frosty 43.7°F (6.5°C).Humidity
In Coupeville, Washington, the average relative humidity in April is 79%.Rainfall
In Coupeville, in April, during 17.8 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Coupeville, during the entire year, the rain falls for 183.8 days and collects up to 24.45" (621mm) of precipitation.Snowfall
Months with snowfall in Coupeville are January through April, November and December. April is the last month it regularly snows in Coupeville. During 0.2 snowfall days, in April, Coupeville aggregates 0.04" (1mm) of snow. 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 are January, February and April, with an average ocean temperature of 45.1°F (7.3°C).Note: Swimming in 45.1°F (7.3°C) poses a severe threat. Even short exposure to 55.4°F (13°C) is chilling, and going below 50°F (10°C) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In April, the average length of the day in Coupeville is 13h and 43min.On the first day of April, sunrise is at 6:46 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:23 pm PDT.
Sunshine
The average sunshine in April in Coupeville is 8.5h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In April, the maximum UV index of 3 suggests this advice:
Undertake protective steps - Preventing sun damage is advised. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the average April temperature in Coupeville?
What is the average humidity in April in Coupeville?
How much does it rain in Coupeville in April?
What is the last month it snows in Coupeville?
What months are the ocean coldest in Coupeville?
What is the water temperature in April in Coupeville?
How many hours of daylight does Coupeville have in April?
When are sunrise and sunset in April in Coupeville?
How long on average sun shines in April in Coupeville?
What is the UV index reading in April in Coupeville?
Average temperature in April
Coupeville, WA
- Average high temperature in April: 52.3°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 April: 43.7°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 April
Coupeville, WA
- Average pressure in April: 30.04"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 April
Coupeville, WA
- Average wind speed in April: 6.5mph
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 April
Coupeville, WA
- Average humidity in April: 79%
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 April
Coupeville, WA
- Average rainfall in April: 2.01"
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 April
Coupeville, WA
- Average rainfall days in April: 17.8 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 April
Coupeville, WA
- Average snowfall in April: 0.04"
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 April
Coupeville, WA
- Average snowfall days in April: 0.2 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 April
Coupeville, WA
- Average sea temperature in April: 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 April /
Average sunshine in April
Coupeville, WA
- Average daylight in April: 13h and 4min
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 April: 8h and 3min
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 April
Coupeville, WA
- Average sunshine days in April: 9.7 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 April
Coupeville, WA
- Average UV index in April: 3
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 April
Coupeville, WA
- Average cloud cover in April: 46
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 April
Coupeville, WA
- Average visibility in April: 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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