April weather forecastTukwila, WA
April
Weather in April
April is a mild spring month in Tukwila, Washington, with an average temperature ranging between min 39.7°F (4.3°C) and max 56.7°F (13.7°C).Temperature
In Tukwila, the average high-temperature in April slightly increases from a fresh 51.1°F (10.6°C) in March to a mild 56.7°F (13.7°C). Throughout April, Tukwila witnesses a consistent average low-temperature of 39.7°F (4.3°C).Humidity
The average relative humidity in April in Tukwila is 79%.Rainfall
In Tukwila, Washington, in April, it is raining for 14.9 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, there are 138.2 rainfall days, and 14.09" (358mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Tukwila, the average length of the day in April is 13h and 40min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:39 pm. On the last day of April, in Tukwila, Washington, sunrise is at 5:52 am and sunset at 8:20 pm PDT.
Sunshine
In April, the average sunshine is 7.9h.UV index
In Tukwila, Washington, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 3 in April translates into these instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Tukwila, WA
- Average high temperature in April: 56.7°F
The warmest month (with the highest average high temperature) is August (77.7°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in April: 39.7°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 (34.3°F).
Average pressure in April
Tukwila, WA
- Average pressure in April: 30.05"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in April
Tukwila, WA
- Average wind speed in April: 4.8mph
The windiest month (with the highest average wind speed) is March (5.3mph).
The calmest months (with the lowest average wind speed) are July and August (3.6mph).
Average humidity in April
Tukwila, WA
- Average humidity in April: 79%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (68%).
Average rainfall in April
Tukwila, WA
- Average rainfall in April: 1.22"
The wettest month (with the highest rainfall) is December (2.2").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in April
Tukwila, WA
- Average rainfall days in April: 14.9 days
The month with the highest number of rainy days is April (14.9 days).
The month with the least rainy days is August (5.7 days).
Average snowfall in April
Tukwila, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Tukwila, WA
- Average snowfall days in April: 0.4 days
The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Tukwila, WA
- Average daylight in April: 13h and 42min
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 April: 7h and 54min
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 April
Tukwila, WA
- Average sunshine days in April: 13.2 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (13 days).
Average UV index in April
Tukwila, WA
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Tukwila, WA
- Average cloud cover in April: 52
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in April
Tukwila, WA
- Average visibility in April: 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).





