Cool
Average highs are around 12°C, so pack for cooler days.
March verdict
Seattle, Washington, United States in March
Weather score23Poor
Poor for holiday weather
Average highs are around 12°C, so pack for cooler days. Sunshine averages 5.4h per day, enough for a balanced month. Rainfall averages 95mm, so some wet days are possible.
March weather
Monthly averages
Temp
12°C
Rain
95mm
Sun
5.4h
Sea
8°C
Weather score
23
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 95mm, so some wet days are possible.
Some sun
Sunshine averages 5.4h per day, enough for a balanced month.
Cool sea
Sea temperatures average 8°C, so the water can feel cool.
Map
Weather map
Compare Seattle, Washington, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
March12°C average high
March is on the cooler side of Seattle's year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
March95mm average rain
March sits near Seattle's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsApril to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
March5.4 hours average sun
March sits close to Seattle's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
March8°C average sea
March is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJune to September
Sea temperatures are usually near 11°C in this stretch, so swimming comfort is at its strongest.
Weather score
March23 weather score
March scores below Seattle's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
