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Over the course of the year, the temperature typically varies from 37°F to 79°F and is rarely below 28°F or above 88°F . Based on the tourism score, the best time of year to visit Seattle for warm-weather activities is from early July to late August.
Average high temperatures over the year range from 43.7°F (6.5°C) in December to 76.3°F (24.6°C) in August. Meanwhile, average low temperatures fluctuate from 35.1°F (1.7°C) in December to 54°F (12.2°C) in August.
- What is the most humid month in Seattle?January is the most humid month in Seattle, Washington, with an average relative humidity of 85% .
- How much does it rain in Seattle?Throughout the year, in Seattle, Washington, there are 84.2 rainfall days , and 5.2" of precipitation is accumulated.
- When does it snow in Seattle?January through March and November are months with snowfall in Seattle.
- How much does it snow in Seattle?Throughout the year, there are 4.8 snowfall days , and 0.94" of snow is accumulated.
- What are the months with the lowest UV index in Seattle?The months with the lowest UV index are January , February , November and December , with an average maximum UV index of 2 .
- What is the snowiest month in Seattle?The month with the most snowfall in Seattle, Washington, is February , when snow falls for 1.9 days and typically aggregates up to 0.71" of...
- What month is the ocean coldest in Seattle?With an average ocean temperature of 45.3°F , February is the month with the coldest seawater in Seattle, Washington.
- When is Daylight Saving Time (DST) in Seattle?On Sunday, March 12. 2023 , at 2:00 am, Daylight Saving Time starts in Seattle, and the time zone changes from PST to PDT. Daylight Saving Time...
- When it does not snow in Seattle?April through October and December are months without snowfall .
Seattle averages only four days a year of temperatures in the 90s Fahrenheit and normally doesn't get any hotter than 100 °F (38 °C). Nights are equally moderate with minimum temperatures dropping below 70 °F. Just eight times a year, on average does the daily low remain in the 60s. How Often Seattle Has Cold Temperatures.
The district’s yearly temperature is 12.8ºC (55.04ºF) and it is 0.16% higher than United States’s averages. Seattle typically receives about 54.3 millimeters (2.14 inches) of precipitation and has 134.18 rainy days (36.76% of the time) annually. Climate Seattle: Weather By Month. Climate Graph.
- Washington
- 47.6062095
- United States
- 122.3320708
Quick Clicks. Seattle Monthly Climate Averages. °F °C °F °C. Averages are based on historical weather data from the past 10 years. Trending Headlines. Seattle Radar Loop. Use the map search tool if you want to place a location marker on the radar map... Seattle Weather Map. Comprehensive Weather Maps. Seattle Quick Facts.
60. 80. Average high in °F. Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
Based on annual weather averages for Seattle, the best month to go for holiday is July and September. The temperature hovers around 20°c. The table below displays max and min temperature and rain data for the whole year as an average taken from last 12+ years of historical data for Seattle. Average Weather in Seattle in May.
