Seattle in October: Weather Guide
“Mild and bright — an underrated time to visit.”
Roughly 14 rainy days across the month, on average.
There is a specific quality to October in Seattle: a cool crispness in the morning air, felt most clearly along Discovery Park trails. Averages sit around 15.5°C (59.9°F) by day and 9.1°C (48.4°F) after dark, with rainfall near 123 mm across roughly 14.6 rainy days — a persistent presence that reshapes the pavements. Daylight runs about 6.5 hours per day, compact daylight that puts a premium on morning starts, and the season stamps its signature on details like Mount Rainier on a clear morning.
On the ground, this means layered days. Time around Discovery Park trails rewards a morning window when temperatures stabilise, and by afternoon a mid-weight layer earns its keep as you cross between Pike Place Market and the covered options nearby. Evenings pull back indoors — cafés, small restaurants, the warm middle of the day compressed into memory.
Reading across 11 complete years (2015–2025), October in Seattle has trended more variable in recent seasons, with the last few years pushing daytime highs and rainfall patterns modestly away from the older normals. The 2026 signal so far tracks the recent shape rather than the long-run midpoint — meaning what you see above is weighted to how this month has actually been running, not a smoothed 30-year picture that masks the shift.
For travellers planning around 2026, this profile is the honest baseline. Match the packing list to the numbers — not to the month name — and you avoid the classic mismatch of arriving with the wrong shell, the wrong shoes, or the wrong daylight assumptions. The rest of this page breaks down what to wear, what to do, and how the season tends to run for Seattle visitors in 2026.
The Freeze is real — locals will smile at you at Trader Joe's and never invite you anywhere. The correct coffee order is a 'cortado' at Milstead or Elm, not a Starbucks anything. Ballard is where Norwegians settled and where the salmon locks let you watch chinook climb concrete steps every August. Never open an umbrella; it marks you as tourist. Locals wear Gore-Tex hoods and consider anything under a half-inch per hour to be 'not really raining.'
What to pack for Seattle in October
With highs around 15.5°C and lows near 9.1°C, layering does the heavy lifting — a single jacket rarely covers a full day. Waterproofing matters this month — expect meaningful rain and plan around it.
- a waterproof jacket
- a jumper
- waterproof shoes
- an umbrella
- a beanie
What to pack for Seattle in October
- →Breathable travel pantsAmazon · shop this
- →Packable rain jacketAmazon · shop this
- →Compact travel umbrellaAmazon · shop this
- →Waterproof dry bagAmazon · shop this
- →Universal travel adapterAmazon · shop this
- →Compression packing cubesAmazon · shop this
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Where to stay in Seattle
We don't review individual hotels — plenty of people do that well. What we do is send you to compare rooms in Seattle across trusted platforms.
Compare hotels on Booking.com→Estimated October trip to Seattle
Shoulder-season pricing — a balance of price and conditions. Rule-based estimates from a couple based in London — actual prices vary.
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Delayed flight to Seattle?
October sees 113mm of rain here — delays happen. Check if you're eligible for compensation. EU regulations cover flights departing from or arriving in the EU/UK.
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Things worth doing
Best-fit activities include mountain-view drives, waterfront walks, market wanders, and ferry rides — a mix suited to the month's daylight and weather pattern.
October vs. the rest of the year
How this month compares in Seattle. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit Seattle
While October has its own character in Seattle, the data-backed best months to visit Seattle are May, June, July, August. These months combine the most favourable temperatures, rainfall, and sunshine across an 11-year climate record (2015–2025).
See the full best-time-to-visit guide for SeattleOther places with a similar climate right now
Seattle in October — FAQ
Q01Is October a good month for Seattle?
Is October a good month for Seattle?
It is a fair time to visit — expect variable conditions and plan flexibility. In October, Seattle averages a high of 16°C (60°F) and a low of 9°C (48°F), with 113mm of rainfall across roughly 14 rainy days. July through mid-September is the 'dry season' when Rainier finally shows itself daily and the Bumbershoot festival takes over Seattle Center.
Q02How warm does Seattle get in October?
How warm does Seattle get in October?
The average high temperature in Seattle during October is 16°C (60°F), with an average low of 9°C (48°F). These figures are averaged from 11 complete years of daily records (2015–2025, Open-Meteo Archive).
Q03Does it rain a lot in Seattle in October?
Does it rain a lot in Seattle in October?
Seattle averages approximately 14 rainy days in October, with a total monthly rainfall of about 113mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days. November atmospheric rivers dump three inches in 24 hours; the Duwamish floods Georgetown and Highway 99 tunnel entrances close.
Q04What clothes should I bring to Seattle in October?
What clothes should I bring to Seattle in October?
For Seattle in October, pack layered clothing for changing temperatures, a merino base layer for evenings, a compact umbrella or waterproof jacket, comfortable walking shoes. These recommendations are based on 11 complete years of weather averages for this specific month. Waterproof shoes with aggressive tread — moss-covered brick sidewalks in Pioneer Square become skating rinks in November.
Q05Are there many tourists in Seattle in October?
Are there many tourists in Seattle in October?
Tourist crowds in Seattle during October are typically moderate — shoulder season, a sweet spot between crowds and weather. Consider this when planning accommodation — prices track crowd levels closely. The Freeze is real — locals will smile at you at Trader Joe's and never invite you anywhere. The correct coffee order is a 'cortado' at Milstead or Elm, not a Starbucks anything. Ballard is where Norwegians settled and where the salmon locks let you watch chinook climb concrete steps every August. Never open an umbrella; it marks you as tourist. Locals wear Gore-Tex hoods and consider anything under a half-inch per hour to be 'not really raining.'