Climate and monthly weather forecast
Tukwila, WA

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Weather in January

January, like December, is a frosty winter month in Tukwila, Washington, with an average temperature ranging between max 44.6°F (7°C) and min 35.2°F (1.8°C). The average high-temperature for January is a still chilly 44.6°F (7°C), closely aligning with the temperature of the preceding month. Weather in January »

Weather in February

The last month of the winter, February, is another chilly month in Tukwila, Washington, with an average temperature ranging between min 34.9°F (1.6°C) and max 46°F (7.8°C). Tukwila's February reports an average high-temperature of a still frosty 46°F (7.8°C), exhibiting a minor difference from January. Weather in February »

Weather in March

March, the first month of the spring in Tukwila, is a cool month, with temperature in the range of an average low of 37.2°F (2.9°C) and an average high of 51.1°F (10.6°C). The high-temperature average in March for Tukwila is a fresh 51.1°F (10.6°C), staying closely aligned with February's conditions. Weather in March »

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). 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). Weather in April »

Weather in May

May, the last month of the spring in Tukwila, is a comfortable month, with temperature in the range of an average high of 65.3°F (18.5°C) and an average low of 44.4°F (6.9°C). The start of May brings a subtle shift in the average high-temperature, edging up from April's refreshing 56.7°F (13.7°C) to an enjoyable 65.3°F (18.5°C). Weather in May »

Weather in June

June, the first month of the summer in Tukwila, is an agreeable month, with an average temperature fluctuating between 48°F (8.9°C) and 70°F (21.1°C). The average high-temperature during June registers at an agreeable 70°F (21.1°C), closely corresponding to the preceding month. Weather in June »

Weather in July

July in Tukwila, Washington, is a warm summer month, with an average temperature ranging between max 77.2°F (25.1°C) and min 52.5°F (11.4°C). The shift into July is accompanied by a modest temperature increase, with the average high-temperature edging up from a pleasant 70°F (21.1°C) in June to a warm 77.2°F (25.1°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Tukwila, Washington, with temperature in the range of an average low of 53.6°F (12°C) and an average high of 77.7°F (25.4°C). The average temperatures reach their apex in August, averaging 77.7°F (25.4°C) at the high end and 53.6°F (12°C) at the low end. Weather in August »

Weather in September

September, the first month of the autumn in Tukwila, is still a pleasant month, with temperature in the range of an average low of 50.4°F (10.2°C) and an average high of 70.3°F (21.3°C). A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a moderately hot 77.7°F (25.4°C) to a pleasant 70.3°F (21.3°C). Weather in September »

Weather in October

October, the same as September, in Tukwila, Washington, is another refreshing autumn month, with an average temperature ranging between max 59°F (15°C) and min 44.8°F (7.1°C). Onset of October comes with a temperature decline, the average high falling from a pleasant 70.3°F (21.3°C) in September to a refreshing 59°F (15°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Tukwila, Washington, with an average temperature ranging between max 49.1°F (9.5°C) and min 39°F (3.9°C). In Tukwila, the average high-temperature in November decreases from a moderate 59°F (15°C) in October to a chilly 49.1°F (9.5°C). Weather in November »

Weather in December

December, the first month of the winter in Tukwila, is still a chilly month, with an average temperature ranging between max 43.5°F (6.4°C) and min 34.3°F (1.3°C). December, with average temperatures reaching a high of 43.5°F (6.4°C) and a low of 34.3°F (1.3°C), is the coldest month. Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the most humid months in Tukwila?

The months with the highest humidity in Tukwila, Washington, are January and December, with an average relative humidity of 85%.

How much does it rain in Tukwila?

Throughout the year, there are 138.2 rainfall days, and 14.09" (358mm) of precipitation is accumulated.

When does it snow in Tukwila?

Months with snowfall are January through March, November and December.

How many days does it snow in Tukwila?

In Tukwila, during the entire year, snow falls for 9.8 days and aggregates up to 4.72" (120mm) of snow.

When is the lowest UV index in Tukwila?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the snowiest month in Tukwila?

The month with the most snowfall in Tukwila, Washington, is February, when snow falls for 3.4 days and typically aggregates up to 2.52" (64mm) of snow.

When is Daylight Saving Time (DST) in Tukwila?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Tukwila, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow in Tukwila?

April through October are months without snowfall in Tukwila.

When are the longest days in Tukwila?

With an average of 15h and 54min of daylight, June has the longest days of the year.

What is the month with the highest UV index in Tukwila?

The months with the highest UV index are June through August, with an average maximum UV index of 5.

What is the least humid month in Tukwila?

July is the least humid month in Tukwila, Washington, with an average relative humidity of 68%.

What is the driest month in Tukwila?

July is the month with the least rainfall in Tukwila. Rain falls for 6.3 days and accumulates 0.31" (8mm) of precipitation.

What time of the year is the hottest in Tukwila?

With average high temperatures of 77.7°F (25.4°C) and lows of 53.6°F (12°C), August is the warmest month in Tukwila.

What month has the most sunshine in Tukwila?

August has the most sunshine of the year in Tukwila, Washington, with an average of 10.7h of sunshine.

What time of the year is the coldest in Tukwila?

In Tukwila, December is the coldest month, with temperatures averaging a high of 43.5°F (6.4°C) and a low of 34.3°F (1.3°C).

What is the rainiest month in Tukwila?

December is the month with the most rainfall in Tukwila, Washington. Rain falls for 13.5 days and accumulates 2.2" (56mm) of precipitation.

What is the month with the shortest days in Tukwila?

December has the shortest days of the year in Tukwila, with an average of 8h and 30min of daylight.

What is the month with the least sunshine in Tukwila?

December has the least sunshine of the year in Tukwila, with an average of 4.1h of sunshine.

Average temperature
Tukwila, WA

Average temperature - Tukwila, WA

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).

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
Tukwila, WA

Average pressure - Tukwila, WA

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
Tukwila, WA

Average wind speed - Tukwila, WA

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
Tukwila, WA

Average humidity - Tukwila, WA

The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (68%).

Average rainfall
Tukwila, WA

Average rainfall - Tukwila, WA

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
Tukwila, WA

Average rainfall days - Tukwila, WA

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
Tukwila, WA

Average snowfall - Tukwila, WA

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
Tukwila, WA

Average snowfall days - Tukwila, WA

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 / Average sunshine
Tukwila, WA

Average daylight / Average sunshine - Tukwila, WA

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).

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
Tukwila, WA

Average sunshine days - Tukwila, WA

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
Tukwila, WA

Average UV index - Tukwila, WA

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 visibility
Tukwila, WA

Average visibility - Tukwila, WA

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).

Tukwila, Washington, USA

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