In March, Seattle experiences average highs of 11°C (52°F) and lows of 3°C (37°F). Expect around 18 rainy days and 8 hours of sunshine per day, with humidity averaging 65%.

Get the monthly weather forecast for Seattle, WA, including daily high/low, historical averages, to help you plan ahead.

March in Seattle brings low temperatures around 12°C during the day, dropping to 4°C at night, with quite a bit of rainfall expected, averaging around 124 mm for the month.

Discover the wet and cloudy March weather in Seattle, with detailed charts for temperature, rainfall, cloud cover, humidity, daylight, and wind.

Temperatures are rather cool in Seattle in march, but remain tolerable with appropriate clothing. The average maximum temperature reaches 52°F, while the minimum falls to about 39

Oct 31, 2025 · The chart illustrates March temperature patterns in Seattle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of tempera

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 cli

The numbers here describe what the March weather in Seattle, Washington was like for every year since 2010. A series of tables gives March data by year for temperature, precipitati

March marks the beginning of spring in Seattle, with temperatures ranging from 39°F to 54°F (4°C to 12°C). Days continue to lengthen, with around 12 hours of daylight.

It features all historical weather data series we have available, including the Seattle temperature history for March 2025. You can drill down from year to month and even day level