April weather forecastOak Harbor, WA
April
Weather in April
April in Oak Harbor, Washington, is a fresh spring month, with an average temperature ranging between min 43.7°F (6.5°C) and max 52.3°F (11.3°C).Temperature
On the advent of April, Oak Harbor's average high-temperature exhibits a minor adjustment to a cool 52.3°F (11.3°C) from March's 48.6°F (9.2°C). Oak Harbor experiences an average nighttime temperature of 43.7°F (6.5°C) in April, reflecting a minor difference from the day's peak.Humidity
The average relative humidity in April in Oak Harbor is 79%.Rainfall
In April, the rain falls for 17.8 days. Throughout April, 2.01" (51mm) of precipitation is accumulated. 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. April is the last month it regularly snows. During 0.2 snowfall days, in April, Oak Harbor aggregates 0.04" (1mm) of snow. Throughout the year, there are 9.6 snowfall days, and 5.63" (143mm) of snow is accumulated.Ocean temperature
January, February and April, with an average ocean temperature of 45.1°F (7.3°C), are months with the coldest seawater in Oak Harbor.Note: To swim in 45.1°F (7.3°C) at less than 50°F (10°C), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 55.4°F (13°C) is not welcoming.
Daylight
In April, the average length of the day in Oak Harbor, Washington, is 13h and 43min.On the first day of April in Oak Harbor, 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
In Oak Harbor, the average sunshine in April is 8.5h.UV index
The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 3 during April translates into these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Oak Harbor, 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
Oak Harbor, 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
Oak Harbor, 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
Oak Harbor, 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
Oak Harbor, 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
Oak Harbor, 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
Oak Harbor, 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
Oak Harbor, 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
Oak Harbor, 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
Oak Harbor, WA
- Average daylight in April: 13h and 42min
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 30min
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
Oak Harbor, 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
Oak Harbor, 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
Oak Harbor, 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
Oak Harbor, 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).
