Bellevue (WA) Weather and Climate: A Comprehensive Guide
Bellevue experiences great temperature shifts.
The city's weather can transition from warm days
to cold weather.
It also experiences much rain/snowfall throughout the year.
Now, let’s break down all the climate details for a clearer picture.
Average maximum day and minimum night temperature
The climate in Bellevue is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a comfortable 25°C in July. In December, the coolest month of the year, temperatures drop to a chilly 7°C.
At night, you can expect cooler temperatures, with averages dropping to around 2°C during this month. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Bellevue has a notably wet climate with abundant precipitation, recording 1107 mm of rain/snowfall per year. Bellevue can be quite wet during November, receiving approximately 176 mm of precipitation over 21 rainy days. In contrast July, experiences much drier conditions, with 17 mm of rainfall, spread across 5 rainy days. For more details, please visit our Bellevue Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Bellevue can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.4 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.8 hours of sunlight per day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is high throughout the year in Bellevue.
The city experiences its highest humidity in December, reaching 80%. In July, the humidity drops to its lowest level at 65%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
Average wind speed
The mean wind speed varies between 4 m/s and 5 m/s throughout the year. It is lowest in February, April, May, June, July, August, September, October, November and December and highest during January and March.
The mean monthly wind speed over the year (meters per second)
broken clouds and rain overcast and heavy rain broken clouds and small chance of slight rainForecast for Bellevue (WA)
4 m/s
3 m/s
4 m/s
The best time of year to visit Bellevue in the United States of America
During the months of June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Most rainfall (rainy season) is seen in November and December.
July has an average maximum temperature of 25°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 7°C.
November tops the wettest month list with 176 mm of rainfall.
July is the driest month with 17 mm of precipitation.
July is the sunniest month with an average of 312 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
