Last updated: February 24, 2025
October in Seattle, United States is marked by a striking contrast in temperatures, with maximums peaking at 23°C (74°F) and minimums dipping to a brisk -1°C (30°F). The average temperature settles around 11°C (52°F), creating a cool ambiance as autumn deepens. Rain is a frequent visitor, with 155 mm (6.1 in) of precipitation spread over 15 days, contributing to the city’s lush greenery. The humidity often hovers around 83%, adding a crispness to the air that underscores the charm of Seattle’s fall season.
In Seattle, October marks a transitional period as summer fades, showcasing a mix of cooler temperatures and crisp autumn air. The month begins with lows dipping to around -1°C (30°F), while average temperatures hover near 11°C (52°F), offering a refreshing reprieve from the warmer months. Daily highs can reach up to 23°C (74°F), allowing for pleasant afternoons that invite outdoor exploration amid vibrant fall foliage. As the month progresses, the lingering warmth of September gives way to the cooler climate characteristic of late autumn. This shift signals the onset of Seattle's signature rainy season, making October a time of both beauty and change in this bustling Pacific Northwest city.
October in Seattle marks a significant transition in the weather, with precipitation levels reaching 155 mm (6.1 in) over approximately 15 days of rainfall. This increase follows a relatively dry summer, where July and August recorded minimal precipitation with just 18 mm and 16 mm, respectively. September brings a slight uptick, yet October stands out as a pivotal month, foreshadowing the wetter winter season ahead. As the city moves into November, which typically sees 181 mm (7.1 in) of rain, October serves as a reminder that the lush greenery of the Pacific Northwest thrives on its abundant rainfall. This trend highlights how Seattle's climate transitions from drier summer months to a more precipitate autumn, laying the groundwork for the region's characteristic weather patterns.
As October rolls into Seattle, the city experiences a notable shift in humidity, settling at 83%, which marks a slight increase from the preceding months of late summer. Following a dip to 63% in August and 62% in September, the October air carries a refreshing crispness, indicative of the autumn season's arrival. This uptick suggests a transition towards the wetter months ahead, as humidity steadily rises again into November's 89%. Overall, the data illustrates a clear seasonal rhythm, where Seattle's humidity typically peaks in the colder months, enveloping the city in its signature mist.
As October arrives in Seattle, the UV Index sees a slight decline, registering a moderate level of 5, with a burn time of 30 minutes. This shift mirrors the transition from the high summer readings, where the index peaked at 9 in both June and July, demanding vigilant sun protection. After the summer months of intense exposure, the fall months bring a reprieve, yet caution is still warranted, as October maintains a respectable UV level. Understanding these trends is crucial for planning outdoor activities safely. For more detailed information, visit Seattle UV Index.
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As October unfolds in Seattle, the city experiences a notable transition, with sunshine hours tapering off after a vibrant summer. With 190 hours of sun, October marks a shift from the peak brightness of July and August, which boast well over 300 hours each. This month serves as a gentle reminder of autumn's arrival, bridging the gap between the exuberance of late summer and the impending grayness of winter. The steady decline in daylight from the sun-kissed days of May through September reveals a clear trend: as the year progresses into fall, Seattleites can expect fewer sun-drenched moments, yet the crisp, clear days of October offer a unique charm of their own, painting the city in golden hues as leaves turn.
As October rolls into Seattle, the likelihood of sunny weather takes a notable dip, with only a 24% chance of sunshine compared to the sunnier summer months. This marks a significant decline from the peak of 63% in July, emphasizing the shift into the rainy season. While April and May offer a hopeful 50% and 37% chance, respectively, October’s mild conditions signal the return of typical Pacific Northwest overcast skies. The trend clearly shows a descent from the vibrant summer days, making October a transitional month where residents must prepare for the grey and damp days typical of Seattle’s fall, despite the occasional bright spot.
As the vibrant colors of autumn unfold in October, Seattle experiences a shift in daylight duration, offering around 10 hours of sunlight. This marks a gradual decline from the longer, sun-kissed days of summer—where daylight stretched to 15 hours in the height of June and July. Following the summer solstice, daylight begins its steady retreat, decreasing sharply through September’s 12 hours and reaching its autumn nadir in October. This pattern not only signals the transition into the cozy warmth of fall but also reflects the city's embrace of shorter days ahead, as it prepares for the deeper twilight of November’s 9 hours and the deep winter of December. Thus, October serves as a gentle precursor to winter, inviting residents and visitors alike to savor the last golden hours of daylight before the season of hibernation begins.
As October unfolds in Seattle, residents can expect a slight uptick in average wind speeds to 2.9 m/s (6 mph), bringing a refreshing change after the relatively calm summer months. This modest increase signals a transition into the breezier fall, contrasting with July's low of 1.9 m/s (4 mph). The winds begin to pick up their pace as the year progresses, with November anticipated to see an even higher average of 3.5 m/s (8 mph). This changing pattern not only stirs the autumn leaves but also heralds the arrival of cooler weather, inviting locals to embrace the outdoors and enjoy the vibrant fall scenery accompanied by the crisp, invigorating breezes.
The weather in Seattle changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Seattle and find detailed weather information for every month.
October and January present distinct weather patterns, highlighting the transition from autumn to winter. In October, temperatures range from a low of -1°C (30°F) to a comfortable high of 23°C (74°F), with an average of 11°C (52°F) and relatively lower humidity at 83%. The month sees about 155 mm (6.1 in) of precipitation over 15 days, suggesting a rainy season beginning.
In contrast, January is colder, with temperatures dipping to a minimum of -7°C (19°F) and peaking at 14°C (57°F), averaging around 6°C (43°F). This month experiences slightly more precipitation at 175 mm (6.9 in) over 16 days and higher humidity at 86%. This combination of colder temperatures and increased precipitation makes January feel much chillier compared to October. For more detailed weather information, you can check Seattle weather in January.
October and February present distinct weather profiles, reflecting the transition from autumn to late winter. In October, temperatures range from a minimum of -1°C (30°F) to a comfortable maximum of 23°C (74°F), with an average of 11°C (52°F). The month experiences about 155 mm (6.1 in) of precipitation over approximately 15 days, and humidity hovers around 83%. In contrast, February brings colder conditions, with temperatures dipping to a minimum of -10°C (14°F) and a maximum of only 14°C (58°F), averaging at 5°C (41°F). Precipitation is slightly higher at 177 mm (7.0 in) spread across 19 days, coupled with a slightly elevated humidity of 86%. For more details on the weather in February, you can visit Seattle weather in February.
When comparing the weather in October and March, both months experience similar minimum temperatures, hovering around -1°C (30°F). However, October boasts a higher average temperature of 11°C (52°F) compared to March's 7°C (46°F). Maximum temperatures in October reach 23°C (74°F), while March peaks at 22°C (72°F). October also sees significantly more precipitation, with 155 mm (6.1 in) over 15 days, compared to March's 126 mm (4.9 in) over 17 days. Additionally, March has slightly higher humidity at 87% versus October's 83%. For more details on the weather specifics, check the link: Seattle weather in March.
When comparing the weather in October and April, we see notable similarities and differences. In October, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 23°C (74°F), with an average of 11°C (52°F). The month experiences significant precipitation, totaling 155 mm (6.1 in) over approximately 15 days, and the humidity level sits at 83%. In contrast, April offers slightly milder conditions, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 24°C (75°F) and an average of 10°C (50°F). Although April has less rainfall at 117 mm (4.6 in) across about 14 days, the humidity remains high at 84%. For more details on Seattle weather during April, check out Seattle weather in April.
When comparing the weather in October and May, notable differences emerge in temperature and precipitation patterns. October typically experiences cooler temperatures, with minimums dropping to around -1°C (30°F) and average highs of 23°C (74°F). In contrast, May sees milder conditions, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 28°C (82°F). Additionally, October is considerably wetter, averaging 155 mm (6.1 in) of precipitation over 15 days, while May is drier, with only 68 mm (2.7 in) over 12 days. Humidity levels remain relatively similar, hovering around 83% in October and 81% in May. For more detailed information on the weather during this month, you can check Seattle weather in May.
When comparing the weather in October and June, a notable difference is evident in both temperature and precipitation patterns. October sees a wider range of temperatures with a minimum of -1°C (30°F) and a maximum of 23°C (74°F), while June’s temperatures are generally milder, with a low of 8°C (46°F) and a peak of 38°C (101°F). Additionally, October tends to be much wetter, receiving 155 mm (6.1 in) of precipitation over 15 days, compared to June’s 63 mm (2.5 in) over just 9 days. Humidity levels are comparable, hovering around 83% in October and 82% in June, making both months feel relatively damp. For more specific details about June weather patterns, you can check Seattle weather in June.
In comparing the weather patterns of October and July, it's clear that there is a significant shift in temperature and precipitation. October experiences cooler temperatures, with averages around 11°C (52°F) and maximums reaching 23°C (74°F), while July boasts warmer conditions, averaging 19°C (67°F) and peaking at 32°C (91°F). Precipitation also differs dramatically; October sees about 155 mm (6.1 in) spread across 15 days, in stark contrast to July’s drier climate with only 18 mm (0.7 in) over just 5 days. Humidity levels remain fairly consistent, with October slightly higher at 83% compared to July's 79%. For a closer look at Seattle's summer temperatures, you can visit Seattle weather in July.
When comparing the weather in October and August, a stark contrast emerges. October experiences cooler temperatures, with a minimum of -1°C (30°F) and an average of 11°C (52°F), peaking at 23°C (74°F). In contrast, August boasts significantly warmer conditions; temperatures range from a minimum of 10°C (51°F) to a maximum of 33°C (93°F), averaging 19°C (67°F). Precipitation levels also differ greatly, with October receiving 155 mm (6.1 in) over 15 days, while August sees just 16 mm (0.6 in) across a mere 5 days. Additionally, October is much more humid at 83% compared to August's 63%. For more insights on summer weather, visit Seattle weather in August.
In October, temperatures drop significantly compared to September, with a minimum of -1°C (30°F) and an average of 11°C (52°F), whereas September experiences milder temperatures with a minimum of 8°C (46°F) and an average of 16°C (62°F). The maximum temperatures in October reach only 23°C (74°F), while September can soar up to 30°C (86°F). Additionally, October sees an increase in precipitation, totaling 155 mm (6.1 in) over 15 days, compared to September's 100 mm (3.9 in) over 12 days. The humidity also rises in October to 83%, significantly higher than September's 62%. For more detailed insights, you can visit Seattle weather in September.
In October, the weather features a range of temperatures, with a minimum of -1°C (30°F), an average of 11°C (52°F), and a maximum of 23°C (74°F). It also experiences notable precipitation, totaling 155 mm (6.1 in) spread over 15 days, and an average humidity of 83%. In contrast, November sees slightly cooler temperatures, with the same minimum of -1°C (30°F) but an average dropping to 8°C (47°F) and a maximum of 17°C (63°F). This month also experiences increased precipitation, reaching 181 mm (7.1 in) over 18 days, alongside a rise in humidity to 89%. For a closer look at November weather specifics, you can visit Seattle weather in November.
October in Seattle experiences a wider temperature range, with minimums dropping to -1°C (30°F) but averaging a milder 11°C (52°F) during the day, while maxima can reach up to 23°C (74°F). In contrast, December sees cooler conditions, with temperatures dipping as low as -7°C (20°F) and averaging only 6°C (42°F). Precipitation also increases from October to December, with October receiving about 155 mm (6.1 in) over 15 days, compared to December's 196 mm (7.7 in) over 19 days. This contributes to a higher humidity in December at 88%, compared to October's 83%. For more details, visit Seattle weather in December.
As October rolls into Seattle, the city experiences a notable shift in weather patterns, characterized by cooler temperatures and increased precipitation. With the maximum temperature dipping to a comfortable 23°C, average daily lows can plummet to around 11°C, or even lower on chilly nights. This month also witnesses a significant uptick in rainfall, with about 155 mm spread over approximately 15 days, making it one of the wettest months of the year. The humidity sits at a substantial 83%, adding to the brisk feel in the air. Compared to the warmer and drier months of summer, October signals the onset of Seattle's soggy season, wrapping the city in its signature mist. For those interested in a broader perspective on Seattle's unique weather patterns, explore the detailed insights available at Seattle Climate.