KSEA temperature trend
Seattle–Tacoma International Airport
Temperature and dew point over time. The gap between them is what decides fog, and the temperature itself is what decides your density altitude and takeoff run.
Warmest
25 °C
Sep 10, 2026
Coldest
8 °C
Sep 28, 2026
Mean temperature
15.1 °C
Mean dew point
10.3 °C
644 archived observations · Archive updated continuously
Advertisement
Sign up to browse without ads →
Advertisement