Sunrise and Sunset times in SeaTac, United States

SeaTac United States Daily sun schedule, day length and annual chart
☀️ Local time
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Sunrise
Today sunrise
06:12:15
Sunset
Today sunset
20:04:14
🌤️
Day length
13h 51m 59s
City
SeaTac
Region / Country
Washington, United States
Time zone
America/Los_Angeles, UTC -7 h.
Population
29 140 people
Latitude
47.4445
Longitude
-122.299

Select month and year

Date Sunrise Solar Noon Sunset Day length
2026-Apr-01, Wednesday 06:46:56 13:12:57 19:38:57 12h 52m 1s
2026-Apr-02, Thursday 06:44:56 13:12:39 19:40:22 12h 55m 26s
2026-Apr-03, Friday 06:42:57 13:12:21 19:41:46 12h 58m 49s
2026-Apr-04, Saturday 06:40:58 13:12:04 19:43:10 13h 2m 12s
2026-Apr-05, Sunday 06:38:59 13:11:47 19:44:35 13h 5m 36s
2026-Apr-06, Monday 06:37:01 13:11:30 19:45:59 13h 8m 58s
2026-Apr-07, Tuesday 06:35:03 13:11:13 19:47:23 13h 12m 20s
2026-Apr-08, Wednesday 06:33:06 13:10:57 19:48:48 13h 15m 42s
2026-Apr-09, Thursday 06:31:09 13:10:40 19:50:12 13h 19m 3s
2026-Apr-10, Friday 06:29:12 13:10:24 19:51:36 13h 22m 24s
2026-Apr-11, Saturday 06:27:17 13:10:08 19:53:00 13h 25m 43s
2026-Apr-12, Sunday 06:25:21 13:09:53 19:54:24 13h 29m 3s
2026-Apr-13, Monday 06:23:27 13:09:38 19:55:49 13h 32m 22s
2026-Apr-14, Tuesday 06:21:33 13:09:23 19:57:13 13h 35m 40s
2026-Apr-15, Wednesday 06:19:40 13:09:08 19:58:37 13h 38m 57s
2026-Apr-16, Thursday 06:17:48 13:08:54 20:00:01 13h 42m 13s
2026-Apr-17, Friday 06:15:56 13:08:41 20:01:25 13h 45m 29s
2026-Apr-18, Saturday 06:14:05 13:08:27 20:02:49 13h 48m 44s
2026-Apr-19, Sunday 06:12:15 13:08:14 20:04:14 13h 51m 59s
2026-Apr-20, Monday 06:10:26 13:08:02 20:05:38 13h 55m 12s
2026-Apr-21, Tuesday 06:08:38 13:07:50 20:07:02 13h 58m 24s
2026-Apr-22, Wednesday 06:06:51 13:07:38 20:08:25 14h 1m 34s
2026-Apr-23, Thursday 06:05:05 13:07:27 20:09:49 14h 4m 44s
2026-Apr-24, Friday 06:03:19 13:07:16 20:11:13 14h 7m 54s
2026-Apr-25, Saturday 06:01:35 13:07:06 20:12:37 14h 11m 2s
2026-Apr-26, Sunday 05:59:52 13:06:56 20:14:00 14h 14m 8s
2026-Apr-27, Monday 05:58:11 13:06:47 20:15:23 14h 17m 12s
2026-Apr-28, Tuesday 05:56:30 13:06:38 20:16:47 14h 20m 17s
2026-Apr-29, Wednesday 05:54:50 13:06:30 20:18:10 14h 23m 20s
2026-Apr-30, Thursday 05:53:12 13:06:22 20:19:32 14h 26m 20s

Day length in SeaTac during the year on the chart

SeaTac on United States map

Daylight Hours FAQ: 10 Most Googled Questions Answered

Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.

Earth's 23.5° axial tilt causes uneven sunlight distribution. Your hemisphere receives less direct sunlight in winter (shorter days) and more in summer (longer days).

Northern Hemisphere: June 20-22 (summer solstice).

Southern Hemisphere: December 21-23.

Near polar circles, the sun doesn't set for 24 hours.

Northern Hemisphere: December 21-22 (winter solstice).

Southern Hemisphere: June 20-21.

The closer to poles, the more extreme variations:

  • Equator: ~12-hour days year-round
  • Polar regions: Midnight sun/polar nights occur

Miami's lower latitude means:

  • Winter days are longer than NY's
  • Summer days are slightly shorter

During equinoxes:

  • Spring: March 20-21
  • Fall: September 22-23

Most rapid change near equinoxes: 2-4 minutes daily.

Slowest change near solstices: <1 minute daily.

Reliable tools:

  • Timeanddate.com
  • SunCalc.org
  • Photographer's Ephemeris app

Yes. Reduced winter sunlight may cause:

  • Seasonal Affective Disorder (SAD)
  • Vitamin D deficiency

Solution: Light therapy lamps & midday walks