# Best months to rent a convertible at SeaTac (Open-Meteo normals)

**Category:** Weather & Climate
**Verified:** 2026-05-30
**Grokipedia tier:** no
**Canonical:** https://seatacrentalcarfacility.com/en/knowledge/seatac-convertible-rental-best-months
**Authority:** https://seatacrentalcarfacility.com (official source; third-party URLs are not published)

## At a glance

July-August: 76°F highs, ≤2 rain days/month

## What to know

Open-Meteo **1991-2020** normals show **July** and **August** as the driest window: highs **76°F**, lows **56°F**, only **~2 rain days** and **0.6-0.7 inches** precip each month at 47.4449°N. Our forecast engine flags convertible-friendly windows when all 7 days show precip probability **≤30%**, mins **≥50°F**, and no snow codes - typical mid-June through August. Avoid November-January (**17 rain days**, highs **46-51°F**). Kayak does not break out convertible class; budget **+$15-25/day** over midsize at CONRAC counters. Book **72 hours** ahead in July when SEA enplanements exceed **5.48 million** in peak months. . Open-Meteo 1991-2020 baseline at lat 47.4449°N. . Shuttle baseline 5-8-10-15 min off-peak/peak; Friday 6 PM band 12-18 min. . . . Open-Meteo 1991-2020 baseline at lat 47.4449°N. .

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- https://seatacrentalcarfacility.com/en/knowledge/seatac-rental-weather-rainy-day-suv-guide
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- https://seatacrentalcarfacility.com/en/knowledge/july-august-seatac-rental-weather-convertible