Seattle in October
In October, Seattle averages 15°C (59°F) during the day and 9°C (48°F) at night, with frequent rain — about 18 days of the month see precipitation (138 mm total).
Off-peakConditions are cool — bring a jacket for evenings. Expect daily rain or showers, often in heavy bursts.
It's peak hurricane season in Seattle during October. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How October compares to the rest of the year in Seattle
October is in the middle of the year for warmth in Seattle (6th of 12) and moderately rainy compared to the rest of the year (7th of 12). Daytime temperature matches the city's annual average. October runs 5°C cooler than September (20°C) and cools 5°C in November (10°C).
October sunrise & sunset in Seattle
Times shown for Seattle local time (America/Los_Angeles), calculated for the 15th of October. They shift by a few minutes day to day across the month.
Photography light in Seattle — October
Golden-hour and blue-hour windows for the 15th of October, in Seattle's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Seattle in October
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on October's tier (Off-peak) and Seattle's popularity.
Crowds & pricing — October in Seattle
This is off-peak for Seattle — the lowest prices of the year and the fewest crowds, but with real trade-offs: some restaurants, hotels, and beach businesses may close for the season; weather conditions can make outdoor activities unpredictable; and a handful of seasonal sights run reduced hours or close entirely. Great if you prefer a quiet local rhythm and don't mind the climate giving you reasons to choose indoor activities.
Why this tier: peak hazard season (1 active)
Sun & mosquito risk — October in Seattle
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Seattle in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 8°C / 47°F | 3°C / 37°F | 182 mm | 21 | — |
| February | 8°C / 46°F | 2°C / 36°F | 125 mm | 21 | — |
| March | 11°C / 52°F | 4°C / 39°F | 123 mm | 20 | — |
| April | 14°C / 57°F | 6°C / 42°F | 93 mm | 19 | — |
| May | 18°C / 65°F | 10°C / 49°F | 56 mm | 16 | — |
| June | 21°C / 70°F | 12°C / 54°F | 50 mm | 14 | — |
| July | 25°C / 76°F | 15°C / 58°F | 16 mm | 8 | — |
| August | 25°C / 76°F | 15°C / 59°F | 27 mm | 10 | — |
| September | 20°C / 69°F | 12°C / 54°F | 65 mm | 15 | — |
| October | 15°C / 59°F | 9°C / 48°F | 138 mm | 18 | — |
| November | 10°C / 50°F | 5°C / 41°F | 178 mm | 21 | — |
| December | 7°C / 45°F | 3°C / 37°F | 185 mm | 20 | — |
Other cities with similar October weather
🌍 See the full ranked list of climate twins for Seattle in October →
Frequently asked questions
How hot is Seattle in October?
In October, Seattle averages a high of 15°C (59°F) and a low of 9°C (48°F) — generally cool.
Does it rain a lot in Seattle in October?
October is quite rainy in Seattle, with about 18 rainy days on average.
Is October a good time to visit Seattle?
October is cool but on the rainy side. It suits travelers who are comfortable with cool weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Seattle in October?
Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full October packing list for Seattle for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.