Seattle Weather in October
Seattle in October sees moderate daytime temperatures of 16°C (61°F) and nighttime lows of 8°C (46°F). Rainfall is fairly high this month at around 100 mm (3.9 in), so pack a rain jacket to stay dry.
Rainfall in Seattle in October
Based on our climate data of the past 30 years, about 16 days of rain are anticipated, with 100 mm (3.9 in) on average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Seattle in October
Temperatures in Seattle in October top out at 16°C (61°F) and drop to 8°C (46°F) overnight. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 8°C (46°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Seattle in October
The month brings about 143 hours of sunlight, offering a comfortable mix of sun and overcast.
Wind Speed in Seattle in October
Wind speeds average 4 m/s (8 knots) during October. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Seattle.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Seattle's climate page.
Seattle Temperature in October
Min Temperature
8°C (46°F)
Max Temperature
16°C (61°F)
Chance of Rain
52%
Precipitation
100 mm (3.9 in)
Rainy days
16 days
Humidity
78%
Windspeed
4 m/s (8 knots)
Sunshine
143 hours
Percentage Sunshine
42%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Seattle typically drop from around 18°C (64°F) at the start of October to approximately 13°C (55°F) by the end. Nights are cool, with lows typically ranging from 6°C (43°F) to 10°C (50°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Seattle in October
Browse day-by-day weather records for Seattle spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Seattle historical weather extremes in October
According to our 49 years of weather records for Seattle, the following extremes were recorded between 1976 and 2025.
- Seattle recorded its highest October temperature of 28°C (82°F) on October 11, 1991.
- On October 31, 1984, Seattle saw its coldest October day with temperatures maxing out at 4°C (39°F).
- The coldest night in October in Seattle was on October 31, 2003, with a minimum of -1°C (30°F).
Best Places in the United States of America in October
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in October →
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What to Wear in Seattle in October
Pack for changing conditions in Seattle in October. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Seattle in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Seattle's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Seattle climate overview or explore weather in the United States of America.
