Seattle weather by month
Seattle is renowned for its lush greenery and vibrant culture, but its weather often gets a reputation for being…well, rainy. While rain is a part of the Seattle experience, the city enjoys a surprisingly diverse climate throughout the year. This guide breaks down Seattle weather by month, helping you plan the perfect visit or simply understand what to expect in the Emerald City.
Overview of Seattle’s Climate
Seattle has a marine west coast climate, characterized by mild, wet winters and warm, relatively dry summers. The Puget Sound and the Olympic Mountains significantly influence the weather patterns, creating microclimates and contributing to the city’s unique conditions. Don’t believe everything you hear about constant downpours – Seattle actually receives less annual rainfall than many major East Coast cities! The biggest factor isn’t how much it rains, but how often it drizzles or experiences overcast skies.
Seattle Weather by Month: A Detailed Breakdown
Here’s a month-by-month look at what you can expect:
| Month | Avg High (°F) | Avg Low (°F) | Rainfall (in) | Sunshine Hours | Key Characteristics |
|---|---|---|---|---|---|
| January | 46 | 36 | 5.7 | 35 | Coldest month, frequent rain, potential for snow. |
| February | 49 | 38 | 4.3 | 55 | Similar to January, slightly milder. |
| March | 53 | 41 | 3.8 | 100 | Transition month, increasing sunshine. |
| April | 58 | 45 | 2.8 | 150 | Showers taper off, flowers bloom. |
| May | 64 | 50 | 2.2 | 200 | Pleasant temperatures, longer daylight hours. |
| June | 69 | 55 | 1.8 | 230 | Warm and sunny, start of summer. |
| July | 76 | 60 | 0.8 | 270 | Hottest month, driest conditions. |
| August | 76 | 60 | 0.9 | 250 | Similar to July, warm and sunny. |
| September | 72 | 56 | 1.6 | 200 | Pleasant temperatures, decreasing sunshine. |
| October | 62 | 48 | 3.3 | 100 | Cooler temperatures, increasing rainfall. |
| November | 51 | 40 | 5.4 | 40 | Gray skies, frequent rain, approaching winter. |
| December | 45 | 36 | 6.0 | 30 | Cold and wet, potential for snow. |
Spring in Seattle (March – May)
Spring is a beautiful time to visit Seattle. The city awakens from its winter slumber, and flowers burst into bloom. March can still be quite rainy, but April and May offer increasingly sunny days and comfortable temperatures. Pack layers, as the weather can be unpredictable. Expect average highs ranging from the mid-50s to the low 60s. This is a great time for exploring parks, gardens, and enjoying outdoor activities.
Summer in Seattle (June – August)
Seattle summers are surprisingly warm and dry. July and August boast average highs in the mid-70s, with plenty of sunshine. These months are ideal for outdoor adventures, from hiking and kayaking to exploring the waterfront. While rain is minimal, evenings can still be cool, so a light jacket is recommended. This is peak tourist season, so expect larger crowds and higher prices.
Autumn in Seattle (September – November)
Autumn brings a stunning display of colors as the leaves change. September often feels like an extension of summer, with pleasant temperatures and decreasing rainfall. October and November are wetter and cooler, with average highs dropping into the 50s. This is a cozy time to enjoy Seattle’s coffee shops, museums, and indoor attractions.
Winter in Seattle (December – February)
Seattle winters are mild compared to many other parts of the country. Temperatures rarely drop below freezing, but rain is frequent. Snowfall is possible, but typically doesn’t accumulate significantly. Average highs range from the mid-40s to the low 50s. Embrace the cozy atmosphere, enjoy indoor activities, and take advantage of the lower tourist season.
Frequently Asked Questions (FAQ)
Q: Is Seattle always rainy?
A: No, Seattle isn’t always rainy. It receives a lot of cloudy days and drizzle, but the total annual rainfall is less than many East Coast cities.
Q: What should I pack for a trip to Seattle?
A: Layers are key! Pack a waterproof jacket, comfortable walking shoes, and clothing that can be easily layered.
Q: What is the best time to visit Seattle for sunshine?
A: July and August offer the most sunshine and warmest temperatures.
Q: Does it snow in Seattle?
A: Yes, it snows in Seattle, but significant snowfall is relatively rare.
Q: What is the average temperature in Seattle?
A: The average annual temperature in Seattle is around 53°F (12°C).
Resources
- National Weather Service – Seattle: https://www.weather.gov/sew/
- Visit Seattle: https://www.visitseattle.org/
- The Seattle Times Weather: https://www.seattletimes.com/weather/
- King County Metro Trip Planner: https://kingcounty.gov/trip-planner (for planning around potential weather delays)
- UW Climate Impacts Group: https://climate.washington.edu/ (for more in-depth climate information)
