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Early spring · Weather & things to do

Seattle in March

Seattle warms up: highs climb to 51°F (11°C), from 47°F in February, with lows of 38°F (3°C) and about 5.4 in (138 mm) of rain.

Our comfort score puts it mid-table at 50/100, 8th of 12.

Seattle, Washington, United States
Avg high
51°F (11°C)
Avg low
38°F (3°C)
Rain
5.4 in (138 mm)
Humidity
85%
Cloud cover
79%
Daylight
~11 h 35 min
Comfort score
50/100 · Fair

What March feels like

Afternoons only reach about 51°F (11°C), so plan on a warm jacket.

Nights cool to an average low of 38°F (3°C).

Rain is a real factor, with about 5.4 in (138 mm) across the month.

Skies are often grey, with average cloud cover around 79%.

Seattle: March compared with the months either side
FebruaryMarchApril
Avg high47°F8°C51°F11°C57°F14°C
Avg low35°F2°C38°F3°C41°F5°C
Rain4.3 in108 mm5.4 in138 mm3.7 in95 mm
Daylight10 h 00 min11 h 35 min13 h 24 min
Comfort485066

Plan around March

March sits mid-table; the best months are June – September.

What to pack for March

What to do in Seattle in March

With 5.4 in of rain, these picks lean toward food, drink and places with a roof, with outdoor options when the weather breaks.

Nearby in March

These averages also cover Pike Place Market & Waterfront and Seattle Center & Queen Anne.

NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.

Seattle in March: quick answers

Is March a good time to visit Seattle?

It's middling, scoring 50/100. The best months are June – September, at up to 90. Expect highs of 51°F (11°C) and 5.4 in (138 mm) of rain. Our Pacific Northwest route recommends Jun – Sep, so March is outside its suggested window.

How cold is Seattle in March?

Average highs are 51°F (11°C) and average lows 38°F (3°C), making it the 5th-coldest month by daytime highs.

Does it rain a lot in Seattle in March?

Yes: about 5.4 in (138 mm) of rain falls across March on average, the 4th-wettest month of the year. The annual total is about 48.4 in (1230 mm).

What should I pack for Seattle in March?

Bring insulated jacket (highs only 51°F), rain jacket and waterproof shoes (5.4 in of rain on average) and comfortable walking shoes (most places below are best reached on foot or with short walks).

Planning Seattle in March?

Share this March plan with your group, poll everyone on dates and keep the packing list in one place.

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