Bellevue, Washington Weather by Month

Bellevue, Washington, located in King County, is a vibrant city that forms part of the Seattle metropolitan area. Located on the eastern shore of Lake Washington, Bellevue boasts a stunning natural setting surrounded by lush greenery, sparkling waters, and majestic mountain views. With a population of approximately 148,164 residents, Bellevue is the fifth-largest city in Washington state and is known for its thriving economy, diverse culture, and world-class amenities. Home to leading technology companies, upscale shopping destinations, and top-rated schools, Bellevue offers a high quality of life and endless opportunities for residents and visitors alike to explore, work, and play.


Bellevue is located in the Pacific Northwest region of the United States, located between Lake Washington to the west and the Cascade Mountain Range to the east. The city’s geographical coordinates are approximately 47.6104° N latitude and 122.2007° W longitude. Bellevue covers a total area of 36.47 square miles, encompassing a mix of urban neighborhoods, suburban developments, and natural landscapes. Its proximity to Seattle and the surrounding natural beauty make Bellevue a highly desirable place to live and visit.

Affiliation and Population

Bellevue is affiliated with King County and is part of the state of Washington in the United States. As of the 2020 census, the city’s population was estimated to be 148,164 residents, reflecting Bellevue’s status as one of the fastest-growing cities in the region. Known for its diverse population and welcoming community, Bellevue attracts individuals and families from all walks of life who are drawn to its dynamic economy, excellent schools, and abundant recreational opportunities.

Area and Major Landmarks

The total area of Bellevue spans 36.47 square miles, offering a mix of urban amenities and natural beauty. Major landmarks in Bellevue include Bellevue Downtown Park, a 20-acre urban oasis featuring a beautiful waterfall, walking paths, and scenic views of the city skyline. Other notable attractions include the Bellevue Botanical Garden, Meydenbauer Bay Park, and the Bellevue Arts Museum, which showcases contemporary art and craft exhibitions from around the world. Additionally, Bellevue is home to prominent technology companies such as Microsoft, Expedia, and T-Mobile, contributing to its reputation as a global hub for innovation and entrepreneurship.

Famous Company or University

Bellevue is home to several renowned companies and institutions, including Microsoft Corporation, one of the world’s largest technology companies, headquartered in the city’s Eastside district. Other notable companies with a presence in Bellevue include Expedia Group, T-Mobile US, and PACCAR Inc. Bellevue is also home to Bellevue College, a leading institution of higher education offering a wide range of academic programs and workforce development opportunities to students from diverse backgrounds.

Climate and Weather Overview

Bellevue experiences a temperate marine climate, characterized by mild, wet winters and warm, dry summers. The city’s proximity to the Pacific Ocean moderates its temperatures and contributes to its relatively mild year-round weather patterns. While rainfall is common throughout the year, Bellevue also enjoys abundant sunshine, particularly during the summer months. The city’s diverse climate and favorable weather conditions make it an ideal destination for outdoor recreation, cultural events, and year-round activities.

Average Climate Data

Below is a table detailing the average temperature, precipitation, and number of sunny days for each month in Bellevue:

Month Average Temperature (°F) Precipitation (inches) Sunny Days
January 43°F 5.24 inches 29
February 46°F 3.72 inches 34
March 51°F 3.88 inches 47
April 56°F 2.69 inches 51
May 63°F 1.90 inches 60
June 69°F 1.57 inches 65
July 75°F 0.68 inches 73
August 75°F 0.75 inches 72
September 70°F 1.58 inches 66
October 59°F 3.09 inches 53
November 49°F 5.72 inches 33
December 44°F 5.94 inches 26

Weather by Month


January in Bellevue is characterized by cool temperatures and frequent rainfall, with average highs around 43°F. Precipitation levels are relatively high, with an average of 5.24 inches of rainfall. Despite the rain, there are still 29 sunny days, providing opportunities for outdoor activities such as hiking, biking, or exploring local parks and trails.


February brings slightly warmer temperatures to Bellevue, with average highs reaching around 46°F. Precipitation levels decrease to 3.72 inches on average, and there are 34 sunny days. Residents can take advantage of the milder weather to go sightseeing, shopping, or dining at local restaurants and cafes, or attending cultural events and performances.


March marks the transition to spring in Bellevue, with temperatures warming up to an average of 51°F. Precipitation levels remain moderate at 3.88 inches on average, but there are 47 sunny days. Residents can embrace the arrival of spring by visiting botanical gardens, participating in outdoor fitness classes, or attending spring festivals and art exhibitions in the community.


April brings milder temperatures and fewer rainy days to Bellevue, with average highs around 56°F. Precipitation levels decrease to 2.69 inches on average, and there are 51 sunny days. Residents can enjoy outdoor activities such as picnicking, gardening, or visiting local farmers’ markets to shop for fresh produce and artisanal goods.


May heralds the arrival of warmer weather and abundant sunshine in Bellevue, with temperatures rising to an average of 63°F. Precipitation levels continue to decrease to 1.90 inches on average, and there are 60 sunny days. Residents can take advantage of the pleasant weather to go hiking, kayaking, or paddleboarding on Lake Washington, or attending outdoor concerts and food festivals in the city.


June brings summer-like temperatures and clear skies to Bellevue, with average highs reaching around 69°F. Precipitation levels remain low at 1.57 inches on average, and there are 65 sunny days. Residents can spend time outdoors enjoying activities such as boating, fishing, or picnicking at local parks and beaches, or attending outdoor movie nights and cultural performances.


July is the warmest month of the year in Bellevue, with average highs peaking at around 75°F. Precipitation levels are minimal at 0.68 inches on average, and there are 73 sunny days. Residents can beat the heat by going swimming, sunbathing, or enjoying water sports on Lake Washington, or attending Fourth of July fireworks displays and community picnics.


August brings continued warmth and sunshine to Bellevue, with average highs remaining around 75°F. Precipitation levels remain low at 0.75 inches on average, and there are 72 sunny days. Residents can spend time outdoors exploring local parks and nature reserves, or attending outdoor concerts, food truck festivals, and cultural events in the city.


September marks the transition to fall in Bellevue, with temperatures starting to cool down to an average of 70°F. Precipitation levels increase slightly to 1.58 inches on average, but there are still 66 sunny days. Residents can take advantage of the mild weather to go hiking, biking, or exploring scenic drives in the Cascade Mountains, or attending fall harvest festivals and wine tastings in the region.


October brings cooler temperatures and more rainfall to Bellevue, with average highs reaching around 59°F. Precipitation levels increase to 3.09 inches on average, and there are 53 sunny days. Despite the rain, residents can still enjoy outdoor activities such as leaf-peeping, pumpkin picking, or attending Halloween events and haunted house tours in the community.


November sees further cooling and increased rainfall in Bellevue, with average highs dropping to around 49°F. Precipitation levels are relatively high at 5.72 inches on average, but there are still 33 sunny days. Residents can embrace the fall season by going indoor rock climbing, visiting art galleries or museums, or attending Thanksgiving dinners and holiday markets in the city.


December brings winter to Bellevue, with cool temperatures and frequent rainfall, including occasional snowfall in higher elevations. Average highs are around 44°F, and precipitation levels are high at 5.94 inches on average. Despite the rain, there are still 26 sunny days, providing opportunities for residents to enjoy holiday festivities, ice skating, or shopping for gifts at local holiday markets and craft fairs.

Natural Disasters

Bellevue is relatively resilient to natural disasters compared to other regions, but it is still susceptible to occasional hazards such as earthquakes, landslides, and wildfires. The city’s location in the Pacific Northwest puts it at risk of seismic activity, particularly along the Cascadia Subduction Zone, which could potentially result in a major earthquake and subsequent tsunamis. Additionally, heavy rainfall in the winter months can increase the risk of landslides in hilly areas, while dry, windy conditions in the summer can contribute to the spread of wildfires in forested areas. Residents are advised to stay informed about emergency preparedness and evacuation procedures to ensure their safety during natural disasters.

Recommended Activities

Throughout the year, Bellevue offers a wealth of indoor and outdoor activities for residents and visitors to enjoy. From exploring scenic parks and gardens to attending cultural events and festivals, there is something for everyone to discover in this vibrant city. Below are recommended activities for each month:

  • January: Visit Bellevue Botanical Garden to see winter blooms, go shopping at Bellevue Square or The Shops at The Bravern, or attend indoor concerts and performances at Meydenbauer Center.
  • February: Take a scenic drive along Lake Washington Boulevard, go wine tasting at local wineries, or attend Lunar New Year celebrations and cultural events in the International District.
  • March: Explore Mercer Slough Nature Park by canoe or kayak, go hiking in Cougar Mountain Regional Wildland Park, or attend Bellevue Jazz & Blues Festival.
  • April: Visit Bellevue Arts Museum for contemporary art exhibitions, go biking or walking on the Lake to Lake Greenway Trail, or attend Sakura-Con, a Japanese anime convention.
  • May: Go boating or paddleboarding on Lake Washington, visit Bellevue Downtown Park for outdoor yoga or tai chi classes, or attend Bellevue Festival of the Arts.
  • June: Take a scenic cruise on Lake Washington, go golfing at Bellevue Golf Course, or attend Bellevue Strawberry Festival at Crossroads Park.
  • July: Enjoy outdoor concerts and movies in Bellevue Downtown Park, go kayaking or sailing on Lake Washington, or attend Bellevue Family 4th for Fourth of July fireworks and festivities.
  • August: Explore Bellevue’s public art installations on a self-guided walking tour, go fishing or picnicking at Newcastle Beach Park, or attend Bellevue Outdoor Movies in the Park.
  • September: Take a day trip to nearby Snoqualmie Falls, go wine tasting in Woodinville Wine Country, or attend Bellevue Fashion Week for fashion shows and runway events.
  • October: Visit Kelsey Creek Farm for pumpkin patch and farm animal encounters, go hiking or birdwatching in Bridle Trails State Park, or attend Bellevue Halloween Family Fun Fest.
  • November: Go ice skating at Bellevue Downtown Ice Rink, visit Bellevue Arts Museum for holiday craft activities, or attend Bellevue Magic Season for holiday light displays and festive events.
  • December: Shop for holiday gifts at Bellevue’s Winter Market at Bellevue Square, go sledding or snow tubing at Snoqualmie Pass, or attend Bellevue Magic Season for ice skating and holiday performances.

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