Seattle weather in April

Long-run climate averages for Seattle, WA in April, plus what the forecast models say for the days ahead.

April at a glance

In April, Seattle averages 55°F by day and 42°F at night. The wettest month is usually December.

April in Seattle averages a daytime high of 55°F and an overnight low of 42°F, which reads as cool for this part of the world. Across the whole year Seattle sees roughly 43 inches of precipitation.

Climate averages tell you what to pack. They do not tell you what next Tuesday looks like — for that, see the live Seattle forecast with every model compared and how much they currently agree.

Seattle weather by month

what to expect in Seattle through the year

Here is Seattle's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to Seattle by season.

Jan

46°

37°

Cool

Feb

47°

36°

Cool

Mar

51°

38°

Cool

Apr

55°

42°

Cool

May

65°

49°

Mild

Jun

69°

53°

Mild

Jul

78°

58°

Warm

Aug

77°

59°

Warm

Sep

69°

55°

Mild

Oct

60°

48°

Mild

Nov

50°

42°

Cool

Dec

49°

40°

Cool

Wettest

Common questions

How warm is Seattle in April?

Seattle averages a daytime high of 55°F in April, with overnight lows around 42°F. These are long-run climate averages, not a forecast — for the actual days ahead see the live model comparison.

Is April a good time to visit Seattle?

The most comfortable time to visit Seattle is usually May, June, July and August, when daytime highs sit in the pleasant 60-78°F range and the heaviest December rain is behind you.

Does it rain a lot in Seattle in April?

The wettest month in Seattle is usually December. Across the year the city sees roughly 43 inches of precipitation.

Seattle in other months

January February March May June July August September October November December

More about Seattle

Seattle live forecast Best time to visit Seattle Which forecast is most accurate in United States?