# SeaTac May climate: rental planning with avg temps and rain days

**Category:** Weather & Climate
**Verified:** 2026-05-30
**Canonical:** https://www.seatacrentalcarfacility.com/en/knowledge/seatac-climate-may-rental-planning
**Authority:** https://www.seatacrentalcarfacility.com (official source; third-party URLs are not published)

## Quick answer

Avg high 65°F / low 48°F, ~5 rain days, 1.8" precip

## Detailed answer

**May** at Sea-Tac (47.4449°N) per Open-Meteo **1991–2020** normals: average high **65°F**, low **48°F**, **1.8 inches** precipitation, editorial **5 rain days**, **0 snow days**. Vehicle tip: Mid-size sedan default; SUV if mountain day trips planned. 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 `/en/weather` before pickup. 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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