UTC Offset
UTC-07:00
SeaTac, United States Snapshot 2026
Where is SeaTac?
SeaTac, United States
- Continent
- Americas
- Country
- United States
- City
- SeaTac
- Population
- 28.2K
- Elevation
- 80 m
- Coordinates
- 47.45°, -122.29°
SeaTac is a city in United States with a population of approximately 28.2K. Average temperatures range from 1°C (34°F) in February to 26°C (79°F) in August. The best time to visit is June, July, August, September.
Time in SeaTac right now
Open full time & time zone page 14:12 12
Monday, June 15, 2026
IANA time zone
America/Los_Angeles
Daylight saving
DST in effect
PST / PDT
Next DST change
November 1
backward -1h
Live weather in SeaTac
Daylight in SeaTac today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 56m
Climate normals for SeaTac
Long-term monthly averages based on historical data.
January
Wet 
February
Wet March
Wet April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Wet December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 8°C / 2°C | 5°C / -2°C | 18days (183 mm) Wet | 4.2h Fair | 87% Very Muggy | 1.3 Low | Wet | View Details |
| February | 8°C / 1°C | 5°C / -2°C | 18days (147 mm) Wet | 5.3h Fair | 85% Humid | 2 Low | Wet | View Details |
| March | 11°C / 3°C | 8°C / -1°C | 18days (130 mm) Wet | 7.6h Good | 82% Humid | 3.4 Moderate | Wet | View Details |
| April | 14°C / 5°C | 12°C / 2°C | 16days (102 mm) Wet | 9.3h Good | 77% Humid | 4.9 Moderate | Fair | View Details |
| May | 19°C / 9°C | 18°C / 7°C | 11days (68 mm) Wet | 10.7h Excellent | 75% Muggy | 5.8 High | Good | View Details |
| June best | 22°C / 12°C | 21°C / 10°C | 10days (59 mm) Wet | 11.6h Excellent | 72% Muggy | 6.5 High | Excellent | View Details |
| July best | 26°C / 14°C | 26°C / 14°C | 4days (15 mm) Good | 12.6h Excellent | 67% Muggy | 6.9 High | Excellent | View Details |
| August best | 26°C / 15°C | 26°C / 15°C | 5days (23 mm) Good | 11.4h Excellent | 69% Muggy | 5.9 High | Excellent | View Details |
| September best | 22°C / 12°C | 21°C / 12°C | 9days (70 mm) Wet | 9.5h Good | 77% Humid | 4.7 Moderate | Excellent | View Details |
| October | 15°C / 8°C | 14°C / 6°C | 16days (144 mm) Wet | 7h Good | 84% Humid | 3 Moderate | Fair | View Details |
| November | 10°C / 5°C | 8°C / 2°C | 19days (181 mm) Wet | 4.6h Fair | 88% Very Muggy | 1.7 Low | Wet | View Details |
| December | 7°C / 2°C | 4°C / -1°C | 19days (201 mm) Wet | 3.5h Poor | 89% Very Muggy | 1.1 Low | Wet | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 8°C / 2°C . Feb: 8°C / 1°C . Mar: 11°C / 3°C . Apr: 14°C / 5°C . May: 19°C / 9°C . Jun: 22°C / 12°C . Jul: 26°C / 14°C . Aug: 26°C / 15°C . Sep: 22°C / 12°C . Oct: 15°C / 8°C . Nov: 10°C / 5°C . Dec: 7°C / 2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 183 mm. Feb: 147 mm. Mar: 130 mm. Apr: 102 mm. May: 68 mm. Jun: 59 mm. Jul: 15 mm. Aug: 23 mm. Sep: 70 mm. Oct: 144 mm. Nov: 181 mm. Dec: 201 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 87%. Feb: 85%. Mar: 82%. Apr: 77%. May: 75%. Jun: 72%. Jul: 67%. Aug: 69%. Sep: 77%. Oct: 84%. Nov: 88%. Dec: 89%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 15 km/h . Feb: 16 km/h . Mar: 15 km/h . Apr: 15 km/h . May: 13 km/h . Jun: 13 km/h . Jul: 11 km/h . Aug: 12 km/h . Sep: 12 km/h . Oct: 15 km/h . Nov: 16 km/h . Dec: 16 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 2. Mar: UV 3. Apr: UV 5. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 3. Nov: UV 2. Dec: UV 1.
Frequently Asked Questions
SeaTac has a population of approximately 28.2K.
The best months to visit SeaTac are June, July, August, September, when temperatures are pleasant and rainfall is lower.
SeaTac receives approximately 1323mm of rainfall annually across 163 rainy days.
SeaTac is located in United States, in the Americas region.
SeaTac sits at an elevation of 80 m (262 ft) above sea level.