Seattle weather in April

In April, Seattle sees average daytime highs of 57°F and overnight lows near 44°F, with 4.5 in of precipitation across 14.9 wet days and about 13.3 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 55°F in the first days to 60°F by the end. The sky is clear or mostly clear about 15% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 30 min at the start of April to 14 h 06 min by month's end. Set against the rest of the year, April is Seattle's 8th-clearest and 6th-windiest month. For the whole year in context, see Seattle's year-round climate.

Daytime high: 57°; 7th warmest
Overnight low: 44°; 6th coldest
Precipitation: 4.5 in; 14.9 wet days
Daylight: 13 h 24 min; 5:28 AM – 6:51 PM
Cloud cover: 70%; 8th clearest
Wind: 6 mph; 6th windiest
Solar energy: 4.34 kWh/m²
Travel score: 3.5; out of 10

Seattle is city in and county seat of King County, State of Washington, United States.

Density: 2,114/km²; people per km²
Founded: 1851

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← March Seattle year-round climate May →Best places to visit in April

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 55°F in the first days to 60°F by the end.

A typical April day in Seattle reaches about 57°F in the afternoon and slips back to 44°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 50°F and 65°F. Set against its neighbours, April runs about 5°F warmer than March and about 6°F cooler than May.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°F)	55	55	55	55	55	55	55	55	56	56	56	56	56	57	57	57	57	58	58	58	58	58	59	59	59	59	60	60	60	60
Avg low (°F)	42	42	42	42	42	42	43	43	43	43	43	43	43	44	44	44	44	44	44	44	45	45	45	45	45	45	46	46	46	46

	Avg high (°F)	Avg low (°F)
1	55	42
2	55	42
3	55	42
4	55	42
5	55	42
6	55	42
7	55	43
8	55	43
9	56	43
10	56	43
11	56	43
12	56	43
13	56	43
14	57	44
15	57	44
16	57	44
17	57	44
18	58	44
19	58	44
20	58	44
21	58	45
22	58	45
23	59	45
24	59	45
25	59	45
26	59	45
27	60	46
28	60	46
29	60	46
30	60	46

Seattle weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 7th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	46° / 38°	6.9	18.4	2.2	8.7	1.0
Feb	49° / 39°	4.7	14.5	1.8	9.9	1.6
Mar	52° / 40°	5.5	17.5	0.8	11.6	2.3
Apr	57° / 44°	4.5	14.9	0.1	13.3	3.5
May	64° / 49°	3.0	12	0	14.9	5.3
Jun	68° / 53°	2.3	9.5	0	15.7	6.3
Jul	74° / 57°	1.0	5	0	15.4	7.9
Aug	75° / 58°	1.3	4.8	0	14.1	8.0
Sep	69° / 53°	2.6	8.4	0	12.4	6.8
Oct	59° / 47°	5.3	14.1	0	10.6	4.2
Nov	50° / 42°	7.6	18	0.6	9.1	1.9
Dec	45° / 38°	7.0	17.6	2.1	8.3	0.8

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 69%. Skies tend to open up as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	27	27	28	27	27	27	26	27	27	28	29	29	29	30	32	33	33	34	34	34	35	35	35	34	35	35	34	35	36	36
Cloudier (%)	73	73	72	73	73	73	74	73	73	72	71	71	71	70	68	67	67	66	66	66	65	65	65	66	65	65	66	65	64	64

	Clearer (%)	Cloudier (%)
1	27	73
2	27	73
3	28	72
4	27	73
5	27	73
6	27	73
7	26	74
8	27	73
9	27	73
10	28	72
11	29	71
12	29	71
13	29	71
14	30	70
15	32	68
16	33	67
17	33	67
18	34	66
19	34	66
20	34	66
21	35	65
22	35	65
23	35	65
24	34	66
25	35	65
26	35	65
27	34	66
28	35	65
29	36	64
30	36	64

Chance of precipitation in April

Any precipitation

Seattle gets around 4.5 in of rain and snow over 14.9 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 50% and peaks near 54% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	54	54	54	53	53	53	53	53	53	53	53	52	52	51	51	50	50	49	49	48	47	47	46	46	46	45	45	45	44	44

	Rain chance (%)
1	54
2	54
3	54
4	53
5	53
6	53
7	53
8	53
9	53
10	53
11	53
12	52
13	52
14	51
15	51
16	50
17	50
18	49
19	49
20	48
21	47
22	47
23	46
24	46
25	46
26	45
27	45
28	45
29	44
30	44

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

Wind in April

Winds average 6 mph in April.

Across April, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (mph)	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	5	5	5	5	5	5	5	5	5	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (mph)	Feels
1	6	calm
2	6	calm
3	6	calm
4	6	calm
5	6	calm
6	6	calm
7	6	calm
8	6	calm
9	6	calm
10	6	calm
11	6	calm
12	6	calm
13	6	calm
14	6	calm
15	6	calm
16	6	calm
17	6	calm
18	6	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 30 min at the start of April to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 96 minutes over April. Sunrise moves from 5:59 AM to 5:02 AM, and sunset from 6:29 PM to 7:11 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.5	12.6	12.6	12.7	12.7	12.8	12.9	12.9	13.0	13.0	13.1	13.2	13.2	13.3	13.3	13.4	13.4	13.5	13.5	13.6	13.7	13.7	13.8	13.8	13.9	13.9	14.0	14.0	14.1	14.1
Sunrise (AM)	5:59	5:56	5:54	5:52	5:50	5:48	5:46	5:44	5:42	5:40	5:38	5:36	5:34	5:32	5:30	5:28	5:26	5:24	5:22	5:20	5:19	5:17	5:15	5:13	5:11	5:09	5:08	5:06	5:04	5:02
Sunset (PM)	6:29	6:31	6:32	6:34	6:35	6:37	6:38	6:39	6:41	6:42	6:44	6:45	6:47	6:48	6:50	6:51	6:52	6:54	6:55	6:57	6:58	7:00	7:01	7:02	7:04	7:05	7:07	7:08	7:10	7:11

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.5	5:59	6:29
2	12.6	5:56	6:31
3	12.6	5:54	6:32
4	12.7	5:52	6:34
5	12.7	5:50	6:35
6	12.8	5:48	6:37
7	12.9	5:46	6:38
8	12.9	5:44	6:39
9	13.0	5:42	6:41
10	13.0	5:40	6:42
11	13.1	5:38	6:44
12	13.2	5:36	6:45
13	13.2	5:34	6:47
14	13.3	5:32	6:48
15	13.3	5:30	6:50
16	13.4	5:28	6:51
17	13.4	5:26	6:52
18	13.5	5:24	6:54
19	13.5	5:22	6:55
20	13.6	5:20	6:57
21	13.7	5:19	6:58
22	13.7	5:17	7:00
23	13.8	5:15	7:01
24	13.8	5:13	7:02
25	13.9	5:11	7:04
26	13.9	5:09	7:05
27	14.0	5:08	7:07
28	14.0	5:06	7:08
29	14.1	5:04	7:10
30	14.1	5:02	7:11

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.34 kWh/m².

For context, solar energy here swings from a low near 0.88 kWh/m² to a high of 6.14 kWh/m² in July across the year — April's 4.34 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	3.7	3.8	3.8	3.8	3.9	3.9	4.0	4.0	4.0	4.1	4.1	4.2	4.2	4.3	4.3	4.4	4.4	4.5	4.5	4.6	4.6	4.7	4.7	4.7	4.8	4.8	4.9	4.9	5.0	5.0
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.7	Moderate
2	3.8	Moderate
3	3.8	Moderate
4	3.8	Moderate
5	3.9	Moderate
6	3.9	Moderate
7	4.0	Moderate
8	4.0	Moderate
9	4.0	Bright
10	4.1	Bright
11	4.1	Bright
12	4.2	Bright
13	4.2	Bright
14	4.3	Bright
15	4.3	Bright
16	4.4	Bright
17	4.4	Bright
18	4.5	Bright
19	4.5	Bright
20	4.6	Bright
21	4.6	Bright
22	4.7	Bright
23	4.7	Bright
24	4.7	Bright
25	4.8	Bright
26	4.8	Bright
27	4.9	Bright
28	4.9	Bright
29	5.0	Bright
30	5.0	Bright

Planning a trip in April

Hazard calendar for Seattle

In seasonPeak

In April, Seattle sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Seattle's rainy season runs October–April, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is April a good time to visit Seattle?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.5

Sightseeing

7th-best month of the year

0.1

Beach & pool

7th-best month of the year

April is a weaker month for outdoor sightseeing in Seattle.

What to pack for Seattle in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Seattle sees daytime highs around 57°F and nights near 44°F. Pack rain gear. Worth having: a warm layer. About 15 days see rain.

rain geara warm layer

Sea temperature near Seattle in April

The nearest coast averages about 48°F in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 44 mi away) is warmest in August at about 53°F and coldest in February near 46°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°F)	46	46	47	48	50	52	53	53	53	50	49	47
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°F)	Comfort
Jan	46	Bracing
Feb	46	Bracing
Mar	47	Bracing
Apr	48	Bracing
May	50	Bracing
Jun	52	Bracing
Jul	53	Bracing
Aug	53	Bracing
Sep	53	Bracing
Oct	50	Bracing
Nov	49	Bracing
Dec	47	Bracing

UV index in Seattle in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Seattle peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 18 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	1	4	5	7	6	8	6	4	3	1	1
Level	Low	Low	Moderate	Moderate	High	High	Very high	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	1	Low
Mar	4	Moderate
Apr	5	Moderate
May	7	High
Jun	6	High
Jul	8	Very high
Aug	6	High
Sep	4	Moderate
Oct	3	Moderate
Nov	1	Low
Dec	1	Low

Air quality in Seattle in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Seattle is worst in September — around 22 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	8	9	12	12	11	10	10	18	22	12	8	7
Level	Good	Good	Moderate	Good	Good	Good	Good	Moderate	Moderate	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	8	Good
Feb	9	Good
Mar	12	Moderate
Apr	12	Good
May	11	Good
Jun	10	Good
Jul	10	Good
Aug	18	Moderate
Sep	22	Moderate
Oct	12	Good
Nov	8	Good
Dec	7	Good

Location & terrain

Where is Seattle?

Seattle sits at 47.6°N, 122.3°W, 184 ft above sea level, in United States. The nearest listed city is Columbia City, 3.7 mi away.

Topography around Seattle

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Seattle.

Within 2 miles, the terrain around Seattle has only modest variations in elevation — a maximum elevation change of 482 ft around an average of 141 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,188 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,585 ft.

The land around Seattle is covered by artificial surfaces (57%) and water (25%) within 2 miles, water (41%), trees (34%) and artificial surfaces (22%) within 10 miles, and trees (73%) within 50 miles.

2 miles

482 ft

artificial surfaces 57%

10 miles

1,188 ft

water 41%

50 miles

7,585 ft

trees 73%

treesgrasslandartificial surfacesbare terrainwater

← March Seattle year-round climate May →Best places to visit in April

April weather nearby: Columbia City 3.7 mi · Mercer Island 5.6 mi · Bellevue 6.2 mi · Kirkland 7.5 mi · Bryn Mawr-Skyway 8.7 mi · Bainbridge Island 8.7 mi · Inglewood-Finn Hill 9.3 mi · Burien 9.3 mi

United States travel facts

Power plugs: Type A / B; 120 V · 60 Hz
Prices: ≈ 100% of US; price level, 2025
GDP per capita: $90,027; 2025
Happiness: 6.8 / 10; World Happiness, 2025
Safe drinking water: 98%; of population, 2024
Homicide rate: 5.8; per 100k, 2023
Road deaths: 12.7; per 100k/yr, 2019
Income group: High; World Bank
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Seattle (47.6062°, -122.3321°, elevation 184 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°F)	Avg low (°F)
1	55	42
2	55	42
3	55	42
4	55	42
5	55	42
6	55	42
7	55	43
8	55	43
9	56	43
10	56	43
11	56	43
12	56	43
13	56	43
14	57	44
15	57	44
16	57	44
17	57	44
18	58	44
19	58	44
20	58	44
21	58	45
22	58	45
23	59	45
24	59	45
25	59	45
26	59	45
27	60	46
28	60	46
29	60	46
30	60	46

	Clearer (%)	Cloudier (%)
1	27	73
2	27	73
3	28	72
4	27	73
5	27	73
6	27	73
7	26	74
8	27	73
9	27	73
10	28	72
11	29	71
12	29	71
13	29	71
14	30	70
15	32	68
16	33	67
17	33	67
18	34	66
19	34	66
20	34	66
21	35	65
22	35	65
23	35	65
24	34	66
25	35	65
26	35	65
27	34	66
28	35	65
29	36	64
30	36	64

	Rain chance (%)
1	54
2	54
3	54
4	53
5	53
6	53
7	53
8	53
9	53
10	53
11	53
12	52
13	52
14	51
15	51
16	50
17	50
18	49
19	49
20	48
21	47
22	47
23	46
24	46
25	46
26	45
27	45
28	45
29	44
30	44

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°F)	Avg low (°F)
1	55	42
2	55	42
3	55	42
4	55	42
5	55	42
6	55	42
7	55	43
8	55	43
9	56	43
10	56	43
11	56	43
12	56	43
13	56	43
14	57	44
15	57	44
16	57	44
17	57	44
18	58	44
19	58	44
20	58	44
21	58	45
22	58	45
23	59	45
24	59	45
25	59	45
26	59	45
27	60	46
28	60	46
29	60	46
30	60	46

	Clearer (%)	Cloudier (%)
1	27	73
2	27	73
3	28	72
4	27	73
5	27	73
6	27	73
7	26	74
8	27	73
9	27	73
10	28	72
11	29	71
12	29	71
13	29	71
14	30	70
15	32	68
16	33	67
17	33	67
18	34	66
19	34	66
20	34	66
21	35	65
22	35	65
23	35	65
24	34	66
25	35	65
26	35	65
27	34	66
28	35	65
29	36	64
30	36	64

	Rain chance (%)
1	54
2	54
3	54
4	53
5	53
6	53
7	53
8	53
9	53
10	53
11	53
12	52
13	52
14	51
15	51
16	50
17	50
18	49
19	49
20	48
21	47
22	47
23	46
24	46
25	46
26	45
27	45
28	45
29	44
30	44

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°F)	Avg low (°F)
1	55	42
2	55	42
3	55	42
4	55	42
5	55	42
6	55	42
7	55	43
8	55	43
9	56	43
10	56	43
11	56	43
12	56	43
13	56	43
14	57	44
15	57	44
16	57	44
17	57	44
18	58	44
19	58	44
20	58	44
21	58	45
22	58	45
23	59	45
24	59	45
25	59	45
26	59	45
27	60	46
28	60	46
29	60	46
30	60	46

	Clearer (%)	Cloudier (%)
1	27	73
2	27	73
3	28	72
4	27	73
5	27	73
6	27	73
7	26	74
8	27	73
9	27	73
10	28	72
11	29	71
12	29	71
13	29	71
14	30	70
15	32	68
16	33	67
17	33	67
18	34	66
19	34	66
20	34	66
21	35	65
22	35	65
23	35	65
24	34	66
25	35	65
26	35	65
27	34	66
28	35	65
29	36	64
30	36	64

	Rain chance (%)
1	54
2	54
3	54
4	53
5	53
6	53
7	53
8	53
9	53
10	53
11	53
12	52
13	52
14	51
15	51
16	50
17	50
18	49
19	49
20	48
21	47
22	47
23	46
24	46
25	46
26	45
27	45
28	45
29	44
30	44

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100