March weather - Spring 2026 - Seattle, WA Seattle records a steady low-temperature average of 37 4°F (3°C) during March The average relative humidity in March is 82% In Seattle, in March, during 8 9 rainfall days, 0 35" (9mm) of precipitation is typically accumulated Throughout the year, there are 84 2 rainfall days, and 5 2" (132mm) of precipitation is accumulated
Seattle Weather in March 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 While rain showers are still common, they begin to decrease, with an average of 3 inches (76 mm) of precipitation
Seattle WA Weather in March - Current Results 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 Seattle — Tacoma International Airport, located south of the city center
March Weather in Seattle: Temperatures, Humidity, Sunshine, and UV . . . The chart illustrates March temperature patterns in Seattle, showcasing daily minimum, maximum, and average temperatures It highlights the typical range of temperatures throughout the month, providing insights into weather trends
Historical Weather Conditions in Seattle Wa ,us in March Each Year . . . Weather data for Seattle Wa ,us City in March each year, including total rainfall, number of sunny and rainy days, average high and low temperatures, and a statistical chart comparing the trends for each year during that month
Seattle weather in March Weather in Seattle in March The highest day temperature during March of 2025 was 68 °F At the same time the lowest night temperature was 36 °F Daily and nightly averages during March were 50 7 °F and 43 7 °F Mostly all days in March are cloudy but sunny and partly cloudy days are also possible
Weather Seattle in March 2026: Temperature Climate By month’s end, average highs are 12 7°C | 54 9°F, with lows near 4°C | 39 2°F The hottest 10-day period is 21-31, with highs at 7 6°C | 45 7°F The coldest stretch is 1-10, with average lows of 6 1°C | 43°F Seattle averages 7°C | 44 6°F during March