Normal weather for Seattle in October
It's cool to moderate in October in Seattle with an average temperature of 17°C. Temperatures this month range from a low of 14°C to a high of 20°C. At night, you can expect temperatures between 7°C and 12°C.
In October, there is an average of 92 mm of precipitation, spread over 12 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
Seattle in October |
New York | ||
|---|---|---|---|
 Average Temperature |
17°C | 21°C | |
 High Temp |
20°C | 26°C | |
| Low Temp |
14°C | 16°C | |
 Total Precipitation |
92 mm | 119 mm | |
| Rainy Days |
12 days | 13 days | |
Start of October
The month of October starts in Seattle with mild temps, averaging around 19°C during the day and nights around 12°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers. During the day, a shirt, maybe a light sweater, and thin pants will do. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.
Mid October
By mid-October, daytime temps drop to around 18°C, with nights around 11°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
Since it cools down at night, it’s a good idea to wear layers. During the day, a shirt, maybe a light sweater, and thin pants will do. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.
End of October
By the end of October, the average daytime temperature in Seattle is around 15°C, while nighttime temps are about 9°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Because temperatures drop in the evening, wearing layers is recommended. During the day, choose a light jacket, sweater or hoodie, and long pants. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.
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Water temperature
The water temperature at Seattle is 13°C this month. This is too cold to swim without protective gear.
UV index
The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is October a good time to visit Seattle?
Looking for sun and warm weather? October isn’t a good month to be in Seattle. The temperatures are too low for a warm stay this month.
Temperature records for Seattle in October
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Daily Temperature in October in Seattle
This chart shows the average daily high and low temperatures in October for Seattle, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in October in Seattle
The chart below shows the average daily precipitation in October for Seattle, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for October, you can expect about 12 days of precipitation in Seattle.
Daily UV Index in October in Seattle
This chart shows the average daily UV index in October in Seattle, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in October in Seattle Over the Years
This chart shows the average temperature in October in Seattle, measured in degrees Celsius, over the past few years.
Total Precipitation in October in Seattle Over the Years
This chart shows the average precipitation in October in Seattle, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in October for Seattle
Click on any day in October to get detailed info about the usual weather on that day in Seattle. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in October in Seattle
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Average Weather in Seattle by Month
Click on a month below to see detailed weather info for Seattle. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
