Climate guide for Seattle, United States

Seattle in April

Weather, crowds & best time to visit

How to read the score (0–10)
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April · United States

Best time to visit Seattle in April Weather, crowds & prices

Weather in Seattle in April

Average temperature 8°C, 109 mm of rain, about 14 days with 6+ hours of sunshine and 84% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

April score

5.9/10

Ranked #6 of 12 months

Full year for Seattle
Avg temp
8°C
Rainfall
109 mm
Humidity
84%
Days with 6h+ sun
14
Crowd Density
Moderate Crowds
Average Expenses
$$ · Moderate Cost ($$)

April in Seattle scores 5.9/10 for sightseeing and cultural travel - an above-average month (#6 of 12). Expect around 8°C, 109 mm of rain, and roughly 14 days with 6+ hours of sunshine this month.

Ferry views, coffee culture, and evergreen trails peak in clearer May-September weather.

April in Seattle — workable with trade-offs

Expect 8°C (46°F) in April. A good month for city streets, viewpoints and long meals; leave swimming for another season.

109 mm of rain signals a properly wet month, with only about 14 days with 6+ hours of sunshine to count on — build indoor options into the schedule.

That is 5.9/10 on the same scale — 6th of 12 months, versus 9.6/10 for the best month here.

Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.

Budget for mid-season pricing, and crowds are moderate.

If your dates are flexible, July is materially better in Seattle — 3.7 points higher on the same scale.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Seattle in April?
In April, Seattle averages 8°C, 109 mm of rain, and about 14 days with 6+ hours of sunshine. Its climate-comfort score is 5.9/10.
Is April a good time to visit Seattle?
April earns a 5.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Seattle in April?
Expect about 109 mm of rain in April. Average humidity is 84% and there are about 14 days with 6+ hours of sunshine.

Curated in Seattle

Tickets & experiences

Things to do in Seattle

Seattle, United States. Live activities and tours from GetYourGuide, matched to this destination.