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March in Seattle brings low temperatures around 12C during the day, dropping to 4C at night, with quite a bit of rainfall expected, averaging around 124 mm for the month.
March in Seattle brings low temperatures around 12C during the day, dropping to 4C at night, with quite a bit of rainfall expected, averaging around 124 mm for the month.
Seattle's March 2026 forecast shows daily high temperatures ranging from 55 to 62, with overnight lows between 41 and 47. The average high for March is 58 with an average low of 44.
In Seattle during March average daily high temperatures increase from 53F to 57F and it is overcast or mostly cloudy about 67% of the time.
Understanding the Context
March marks the beginning of spring in Seattle, with temperatures ranging from 39F to 54F (4C to 12C). Days continue to lengthen, with around 12 hours of daylight. While rain showers are still.
The chart illustrates March temperature patterns in Seattle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the.
This page gives detailed information on the typical March temperature, precipitation, sun, humidity, wind and storms for Seattle. The weather measurements are averages based on climate data gathered at.
March weather in Seattle, Washington: average high 54F, low 39.7F, 3.64" rainfall.
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Key Insights
Weather.com brings you the most accurate monthly weather forecast for Seattle, Washington with average/record and high/low temperatures, precipitation and more.
In March, Seattle experiences average highs of 22C (72F) and lows of 13C (55F). Expect around 4 rainy days and 4 hours of sunshine per day, with humidity averaging 65%.
The average daily temperature expected in Seattle in this month is 12C (54F), dropping to an average temperature of 3C (37F). Seattle sees up to 5 hours of sunshine per day throughout the month.
