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 transition from March to April sees an average high-temperature of a fresh 52.2°F (11.2°C), indicating a minor variance from the prior month. April nights in Friday Harbor document an average temperature reading of 46.2°F (7.9°C).Humidity
With an average relative humidity of 76%, April is the least humid month in Friday Harbor.Rainfall
In Friday Harbor, in April, during 16.3 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Friday Harbor, during the entire year, the rain falls for 167.7 days and collects up to 23.46" (596mm) of precipitation.Snowfall
In Friday Harbor, snow does not fall in April through October.Ocean temperature
In Friday Harbor, the average seawater temperature in April is 45.1°F (7.3°C).Note: Dipping in 45.1°F (7.3°C) at temperatures less than 50°F (10°C) without proper gear can lead to pronounced cold shock and breathing difficulties.
Daylight
In Friday Harbor, the average length of the day in April is 13h and 44min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:43 pm. On the last day of April, sunrise is at 5:52 am and sunset at 8:25 pm PDT.
Sunshine
The average sunshine in April is 8.4h.UV index
In April, the average daily maximum UV index in Friday Harbor is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In April, the maximum UV index of 4 transforms into these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are the temperatures in Friday Harbor in April?
What is the least humid month in Friday Harbor?
What is the average humidity in April in Friday Harbor?
How many days does it rain in April in Friday Harbor?
When it does not snow in Friday Harbor?
Does it snow in Friday Harbor in April?
What is the water temperature in April in Friday Harbor?
How many hours of daylight does Friday Harbor have in April?
What time are sunrise and sunset in April in Friday Harbor?
How long on average sun shines in April in Friday Harbor?
What is the UV index intensity in April in Friday Harbor?
Average temperature in April
Friday Harbor, WA
- Average high temperature in April: 52.2°F
The warmest month (with the highest average high temperature) is July (64.9°F).
The months with the lowest average high temperature are January, February and December (45.3°F).
- Average low temperature in April: 46.2°F
The month with the highest average low temperature is August (57.7°F).
The coldest month (with the lowest average low temperature) is February (40.5°F).
Average pressure in April
Friday Harbor, WA
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed in April
Friday Harbor, WA
- Average wind speed in April: 8.5mph
The windiest month (with the highest average wind speed) is November (10.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in April
Friday Harbor, WA
- Average humidity in April: 76%
The months with the highest relative humidity are January, August and September (79%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Friday Harbor, WA
- Average rainfall in April: 1.69"
The wettest month (with the highest rainfall) is November (3.43").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in April
Friday Harbor, WA
- Average rainfall days in April: 16.3 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).
Average snowfall in April
Friday Harbor, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Friday Harbor, WA
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Friday Harbor, WA
- Average sea temperature in April: 45.2°F
The best months for swimming (with the highest average sea temperature) are August and September (52.3°F).
The coldest month (with the lowest average sea temperature) is February (44.9°F).
Average daylight in April /
Average sunshine in April
Friday Harbor, WA
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in April
Friday Harbor, WA
- Average sunshine days in April: 11.4 days
The month with the most sunshine days is August (24.7 days).
The month with the least sunshine days is November (8.7 days).
Average UV index in April
Friday Harbor, WA
- Average UV index in April: 4
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
Friday Harbor, WA
- Average cloud cover in April: 47
The months with the most cloud cover are February and December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in April
Friday 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).
Friday Harbor, Washington, USA
Weather forecast for your location
2. Allow the app to use your location
