Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average sea temperature in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
As October commences, the average high-temperature shows a reduction, transitioning from an agreeable 69.6°F (20.9°C) in September to a mild 58.6°F (14.8°C). Seattle's average low-temperature in the month of October is recorded at a frosty 45.3°F (7.4°C).Humidity
The average relative humidity in October in Seattle is 79%.Rainfall
In October, the rain falls for 7.2 days. Throughout October, 0.51" (13mm) of precipitation is accumulated. In Seattle, during the entire year, the rain falls for 84.2 days and collects up to 5.2" (132mm) of precipitation.Snowfall
In Seattle, Washington, snow does not fall in April through October and December.Ocean temperature
In October, the average ocean temperature is 50.9°F (10.5°C).Note: In 50.9°F (10.5°C), cold shock and rapid breathing can occur when swimming at temperatures below 50°F (10°C).
Daylight
In October, the average length of the day in Seattle is 10h and 50min.On the first day of the month, sunrise is at 7:09 am and sunset at 6:47 pm. On the last day of October, in Seattle, sunrise is at 7:53 am and sunset at 5:52 pm PDT.
Sunshine
In Seattle, the average sunshine in October is 5.6h.UV index
The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 3 in October translates into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. To guard against the harmful effects of the Sun, minimize exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What is the temperature in October in Seattle?
What is the average humidity in October in Seattle?
How much does it rain in Seattle in October?
When it does not snow in Seattle?
Does it snow in Seattle in October?
How cold is the water in October in Seattle?
How many hours of daylight does Seattle have in October?
When is the sunrise / sunset in October in Seattle?
How many hours of sunshine does Seattle have in October?
What is the UV index intensity in October in Seattle?
Average temperature in October
Seattle, WA
- Average high temperature in October: 58.6°F
The warmest month (with the highest average high temperature) is August (76.3°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in October: 45.3°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (35.1°F).
Average pressure in October
Seattle, WA
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in October
Seattle, WA
- Average wind speed in October: 4.4mph
The windiest month (with the highest average wind speed) is March (5.3mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).
Average humidity in October
Seattle, WA
- Average humidity in October: 79%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (69%).
Average rainfall in October
Seattle, WA
- Average rainfall in October: 0.51"
The wettest month (with the highest rainfall) is December (0.87").
The driest months (with the least rainfall) are July and August (0.12").
Average rainfall days in October
Seattle, WA
- Average rainfall days in October: 7.2 days
The month with the highest number of rainy days is November (9.1 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in October
Seattle, WA
- Average snowfall in October: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in October
Seattle, WA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in October
Seattle, WA
- Average sea temperature in October: 50.9°F
The best month for swimming (with the highest average sea temperature) is August (53.5°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).
Average daylight in October /
Average sunshine in October
Seattle, WA
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in October: 5h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in October
Seattle, WA
- Average sunshine days in October: 21.1 days
The month with the most sunshine days is August (25.9 days).
The month with the least sunshine days is November (16.8 days).
Average UV index in October
Seattle, WA
- Average UV index in October: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Seattle, WA
- Average cloud cover in October: 41
The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in October
Seattle, WA
- Average visibility in October: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).
Seattle, Washington, USA
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