Seattle (WA)
October
Weather in Seattle, Washington for October 2025
Your guide to Seattle weather in October - trends and predictions
Until now, October 2025 in Seattle has been significantly cooler than historical averages by -2 °F, with average temperature of 14.9 °F.
The forecast for the next days in Seattle predicts a temperature of 11.5 °F, which is cooler than the historical average.
In general, the average temperature in Seattle at the beginning of October is 20.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.6 °F by the end of October.
Seattle experiences heavy rainfall in October, with over 20 rainy days and an average total precipitation 134.1 mm.
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Temperatures
Rain 🌧️
More
9
Dry days
22
Rainy days
0
Snow days
16°/8°
Temperatures
12 km/h
Avg max wind
74 %
Avg humidity
Seattle Weather October
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Temperatures trend during October in Seattle
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October weather in Seattle day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Cloudy | 20° /9° | 0.2 mm | 5 | |
| Oct. 2 | Cloudy | 19° /10° | 0.3 mm | 4 | |
| Oct. 3 |  Partly cloudy | 20° /9° | 0.6 mm | 5 | |
| Oct. 4 | Cloudy | 19° /10° | 2.8 mm | 4 | |
| Oct. 5 |  Moderate or heavy rain shower | 19° /9° | 1.2 mm | 4 | |
| Oct. 6 | Partly cloudy | 22° /8° | 2.3 mm | 6 | |
| Oct. 7 | Cloudy | 23° /10° | 0 mm | 5 | |
| Oct. 8 |  Sunny | 19° /10° | 0.7 mm | 5 | |
| Oct. 9 | Moderate rain at times | 16° /9° | 6 mm | 4 | |
| Oct. 10 | Moderate or heavy rain shower | 17° /8° | 10.8 mm | 4 | |
| Oct. 11 |  Overcast | 16° /8° | 2.3 mm | 4 | |
| Oct. 12 | Sunny | 18° /6° | 4.9 mm | 4 | |
| Oct. 13 | Overcast | 18° /8° | 0.9 mm | 4 | |
| Oct. 14 | Sunny | 17° /9° | 2.9 mm | 4 | |
| Oct. 15 | Sunny | 19° /9° | 2.8 mm | 5 | |
| Oct. 16 | Overcast | 18° /9° | 3.7 mm | 4 | |
| Oct. 17 |  Patchy rain possible | 15° /9° | 0.9 mm | 4 | |
| Oct. 18 | Overcast | 16° /7° | 0 mm | 4 | |
| Oct. 19 | Sunny | 18° /8° | 3.1 mm | 5 | |
| Oct. 20 | Moderate rain at times | 17° /10° | 2.6 mm | 4 | |
| Oct. 21 | Patchy rain possible | 15° /8° | 4.4 mm | 4 | |
| Oct. 22 | Patchy rain possible | 15° /7° | 1.4 mm | 4 | |
| Oct. 23 | Overcast | 13° /7° | 1 mm | 3 | |
| Oct. 24 |  Heavy rain at times | 12° /7° | 14.7 mm | 3 | |
| Oct. 25 | Moderate rain at times | 11° /5° | 6.7 mm | 3 | |
| Oct. 26 | Moderate rain at times | 11° /6° | 5.1 mm | 3 | |
| Oct. 27 | Patchy rain possible | 12° /6° | 11.2 mm | 3 | |
| Oct. 28 | Moderate or heavy rain shower | 12° /6° | 16.6 mm | 3 | |
| Oct. 29 | Patchy rain possible | 15° /7° | 2.3 mm | 0.3 | |
| Oct. 30 | Overcast | 15° /6° | 0 mm | 0.3 | |
| Oct. 31 |  Moderate rain | 12° /9° | 10.8 mm | 0.1 | |
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Important Notice
Our weather forecast for Seattle in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Seattle forecast closer to your planned date for the most up-to-date weather information.
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Seattle in October - FAQ
What are the expected maximum and minimum temperatures in Seattle during October?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Seattle during October?
Significant rainfall exceeding 134.1 mm is expected in Seattle during October, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Seattle during October?
The average wind speed in Seattle during October is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in Seattle
Explore the daily rainfall trends and prepare for Seattles October weather 💧
UV exposure in Seattle during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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