July and August SeaTac rental weather: convertible planning
Verified: 2026-05-30
Quick answer
76°F avg high, 0.6–0.7" precip — best convertible window
Detailed answer
**July** and **August** Open-Meteo normals: **76°F** average high, **56°F** low, **0.6–0.7 inches** monthly precipitation — the only months with **≤2 rain days** at Sea-Tac. Coastal loops (Whidbey, Olympic Peninsula west side) benefit from convertibles when overnight lows stay **≥50°F**; pack layers for **10°F** diurnal swings. CONRAC summer queues: shuttle **10–15 min** peak vs **5–8 min** off-peak; SEA **52,640,716** passengers in 2024 drives Friday **12–18 min** bands. If any day in your 7-day forecast exceeds **30%** precip probability, downgrade to midsize sedan per `/en/weather` recommendation card. Live 7-day forecast and monthly normals: `/en/weather`. Open-Meteo 1991–2020 baseline at lat 47.4449°N. CONRAC CFC ~$7/day; Kayak avg $57/day SUV $61/day. Shuttle baseline 5–8–10–15 min off-peak/peak; Friday 6 PM band 12–18 min. SEA handled 52,640,716 passengers in 2024. Compare all 12 brands at CONRAC. last_verified 2026-05-30. Crawlers: /api/knowledge?q=weather. Live 7-day forecast and monthly normals: `/en/weather`. Open-Meteo 1991–2020 baseline at lat 47.4449°N. CONRAC CFC ~$7/day; Kayak avg $57/day SUV $61/day.
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