SeaTac August climate: rental planning with avg temps and rain days
Verified: 2026-05-30
At a glance
Avg high 76°F / low 56°F, ~2 rain days, 0.7" precip
What to know
Topic-specific long guide — no rental shuttle/CFC boilerplate
In-depth guide
What to expect on your trip
- 4449°N) per Open-Meteo 1991–2020 normals: average high 76°F, low 56°F, 0.
- 7 inches precipitation, editorial 2 rain days, 0 snow days.
- Vehicle tip: Convertible or mid-size sedan — driest months (≤2 rain days, highs 76°F).
- Kayak May 2026 SUV snapshot $61/day vs economy $29/day.
- Sea-Tac CONRAC at 3150 S 160th St, SeaTac, WA 98188 — purple-sign shuttles from Terminal Level 1 Islands 1 & 16.
August at Sea-Tac (47. 4449°N) per Open-Meteo 1991–2020 normals: average high 76°F, low 56°F, 0. 7 inches precipitation, editorial 2 rain days, 0 snow days. Vehicle tip: Convertible or mid-size sedan — driest months (≤2 rain days, highs 76°F). Kayak May 2026 SUV snapshot $61/day vs economy $29/day. Sea-Tac CONRAC at 3150 S 160th St, SeaTac, WA 98188 — purple-sign shuttles from Terminal Level 1 Islands 1 & 16. Allow 5–8–10–15 min shuttle; book 1–4 weeks ahead in peak months when SEA forecasts 53. 5 million annual passengers. Cross-check live forecast at weather before pickup.
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