Seattle, WA weather in April
Seattle is cool in April, with rain on most days: highs average 59°F and nights drop to about 43°F. Expect about 16 wet days. Keep rain gear handy.
- Normal high
- 59°F
- Normal low
- 43°F
- Wet days
- 16
- 3.0 in total
- Muggy days
- 0
- dew point 65°F+
How April changes from start to finish
| April 1 | April 30 | |
|---|---|---|
| Normal high | 56°F | 62°F |
| Normal low | 41°F | 45°F |
| Chance of a wet day | 55% | 46% |
| Sunrise / sunset | 6:47 am / 7:38 pm | 5:53 am / 8:19 pm |
| Daylight | 12.8 h | 14.4 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical April day
- 6 am46°Fdew point 41°F
- 9 am51°Fdew point 42°F
- Noon55°Fdew point 41°F
- 3 pm58°Fdew point 40°F
- 6 pm56°Fdew point 40°F
- 9 pm51°Fdew point 41°F
NOAA hourly normals (local standard time) from Seattle Boeing Fld (5 mi away); average wind 6 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F5 of 30
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph0 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow16 of 30
- Notable rainat least 0.10 in9 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per April, counted from daily records for each year 1991-2020.
Rain in April
Normal precipitation is 3.0 in; a dry April brings about 1.8 in and a wet one about 3.5 in (25th and 75th percentiles). About 1 day brings half an inch or more. Snow is very rare.
How April varies from year to year
- Warmest April, 1991-20202016: average high 66°F
- Coolest April2011: average high 54°F
- Wettest April1993: 6.3 in
- Driest April2004: 0.6 in
- Highest reading89°F (April 18, 2016)
- Lowest reading31°F (April 4, 2009)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
April compared with March and May
| March | April | May | |
|---|---|---|---|
| Normal high | 54°F | 59°F | 65°F |
| Normal low | 39°F | 43°F | 48°F |
| Wet days | 18 | 16 | 12 |
| Comfortable days | 2 | 5 | 14 |
| Daylight | 11.9 h | 13.7 h | 15.1 h |
Highs change by +5°F from March and +6°F into May.
Nearby alternatives in April
- Drier: Port Angeles, WA62 mi · high 54°F · 12 wet days
How Seattle ranks in April
- Normal high293rd warmest of 378 cities; 6th of 9 in Washington
- Wet days368th driest of 378
- Comfortable days291st most of 340
What to pack for Seattle in April
- A rain jacket or umbrella – rain on about 16 days
Heating and cooling
April has 426 heating degree days and 0 cooling degree days (base 65°F), 9% of the year's total heating and cooling demand.
Questions
How cold is Seattle in April?
The normal high is 59°F and the normal low is 43°F. From 1991 to 2020 the coldest April reading was 31°F (most recently on April 4, 2009).
Does it rain a lot in Seattle in April?
About 16 days in April have at least 0.01 in of precipitation, and the normal total is 3.0 in. The wettest April in 1991-2020 was in 1993 (6.3 in); the driest was in 2004 (0.6 in).
Is April a good time to visit Seattle?
April ranks 6th of 12 months on our comfort score for Seattle (56 out of 100). It has about 5 comfortable days. The best months are June, July and August.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Seattle Sand Pt WSFO (USW00094290), 6.6 mi NNE of the city center, 60 ft (113 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Seattle Boeing Fld (USW00024234), 5.4 mi SSE of the city center, 20 ft (153 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Seattle-Tacoma International Airport (727930-24233), 11 mi S of the city center, 369 ft (196 ft higher than the city). Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).