Seattle Weather in April
April in Seattle typically sees daytime highs of 15°C (59°F) and nighttime lows of 6°C (43°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Seattle in April
Historically, the month has about 16 days of rain, averaging 73 mm (2.9 in) in total. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Seattle in April
April in Seattle sees highs of 15°C (59°F) and lows of 6°C (43°F) overnight. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 6°C (43°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Seattle in April
The month enjoys around 208 hours of sunshine, creating mostly sunny days despite the cool temperatures.
Wind Speed in Seattle 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.Should you favor a climate that's both dry and comfortably warm, June, July, August and September typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Seattle's climate page.
Seattle 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%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Seattle typically rise from around 13°C (55°F) at the start of April to approximately 16°C (61°F) by the end. Nights are cold, with lows typically ranging from 5°C (41°F) to 8°C (46°F).
Average temperatures in April
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in April
Historical weather for Seattle in April
Browse day-by-day weather records for Seattle spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Seattle historical weather extremes in April
Our historical data for Seattle spans 1976 to 2026, revealing these weather extremes.
- The hottest April day on record in Seattle reached 31°C (88°F) (April 18, 2016).
- The coldest April day was on April 13, 2022, with a maximum of 6°C (43°F).
- The lowest overnight temperature recorded in April was 0°C (32°F) (April 1, 2008).
Best Places in the United States of America in April
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in April →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Seattle in April
The weather can swing between comfortable and chilly in April, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Seattle in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Seattle's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Seattle climate overview or explore weather in the United States of America.
