Seattle, the Emerald City, is known for its unique and often unpredictable weather patterns. Nestled between the Puget Sound and the Cascade Mountains, Seattle experiences a temperate marine climate that brings mild, wet winters and warm, dry summers.
Winter Weather
Seattle’s winters are generally mild compared to other parts of the United States. Average temperatures range from 2°C to 7°C (36°F to 45°F)
1
. Rain is a common feature, with the city receiving most of its annual precipitation during these months. However, snowfall is relatively rare, and when it does occur, it’s usually light and doesn’t last long
2
. The city’s proximity to the ocean means that temperatures rarely drop below freezing, but occasional cold snaps can bring frost and chilly winds
2
.
Spring and Fall
Spring and fall in Seattle are transitional seasons, offering a mix of cool and warm weather. Temperatures during these times can vary widely, with highs ranging from 10°C to 20°C (50°F to 68°F) and lows from 3°C to 10°C (37°F to 50°F)
3
. These seasons are characterized by their variability, with sunny days interspersed with periods of rain and overcast skies. It’s not uncommon to experience all four seasons in a single day during spring and fall.
Summer Weather
Summers in Seattle are generally warm and dry, with average temperatures ranging from 15°C to 25°C (59°F to 77°F)
3
. July and August are the hottest months, with temperatures occasionally reaching the low 30s°C (mid-80s°F)
3
. The city’s location near the coast means that the marine layer can bring cooler temperatures and fog, especially in the mornings and evenings. Despite this, summer is the driest season, with very little rainfall.
Autumn Weather
Autumn in Seattle sees a gradual cooling trend, with temperatures dropping from the warm summer highs to the cooler winter lows. The city experiences a mix of sunny and overcast days, with occasional rain becoming more frequent as the season progresses. Average temperatures range from 10°C to 20°C (50°F to 68°F), similar to spring
3
.
Weather Patterns and Climate Change
Seattle’s weather is heavily influenced by its geographical location and the Pacific Ocean. The city’s climate is also affected by larger weather patterns, such as El Niño and La Niña, which can bring variations in temperature and precipitation. Climate change is expected to impact Seattle’s weather, potentially