SeaTac Weather in April

Thinking of visiting SeaTac in April? Expect moderate temperatures reaching 15°C (59°F) during the day, dropping to 6°C (43°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in SeaTac in April

Typically, about 16 days will experience rainfall, with an average of 73 mm (2.9 in) for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in SeaTac in April

April in SeaTac brings typical temperatures with highs around 15°C (59°F) and lows of 6°C (43°F). Conditions are often most pleasant around the middle of the day. Nights drop to 6°C (43°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in SeaTac in April

Enjoy a sunny month with about 208 hours of sunshine, making it one of the brighter months of the year despite the cool conditions.

Wind Speed in SeaTac in April

Wind speeds average 4 m/s (8 knots) during April. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for SeaTac.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our SeaTac's climate page.

SeaTac Temperature in April

Min Temperature 6°C (43°F)  

Max Temperature 15°C (59°F)  

Chance of Rain 53%  

Precipitation 73 mm (2.9 in)  

Rainy days 16 days  

Humidity 71% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 208 hours *  

Percentage Sunshine 51% *  

What to Wear in SeaTac in April

Pack for changing conditions in SeaTac in April. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in SeaTac in April

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our SeaTac's climate page.

More climate data for SeaTac

Temperature Rainfall Sunshine Humidity Wind Speed

See the full SeaTac climate overview or explore weather in the United States of America.