Mercer Island Weather in March
With daytime temperatures of 12°C (54°F) and nighttime lows of 4°C (39°F), March in Mercer Island brings low temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 126 mm (5 in) falls on average.
Rainfall in Mercer Island in March
Past climate data indicates that roughly 21 days will see rain, totalling around 126 mm (5 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Mercer Island in March
Temperatures in Mercer Island in March top out at 12°C (54°F) and drop to 4°C (39°F) overnight. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Mercer Island in March
The month experiences a moderate amount of sunlight, with 179 hours of sunshine. This provides a nice balance between sunshine and clouds.
Wind Speed in Mercer Island in March
Wind speeds average 5 m/s (10 knots) during March. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.March in Mercer Island can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Mercer Island's climate page.
Mercer Island Temperature in March
Min Temperature
4°C (39°F)
Max Temperature
12°C (54°F)
Chance of Rain
71%
Precipitation
126 mm (5 in)
Rainy days
21 days
Humidity
73% *
Windspeed
5 m/s (10 knots) *
Sunshine
179 hours *
Percentage Sunshine
48% *
Best Places in the United States of America in March
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in March →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Mercer Island in March
The weather can swing between comfortable and chilly in March, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Mercer Island in March
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Mercer Island's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Mercer Island climate overview or explore weather in the United States of America.
