Will it rain in
Seattle today?
Live hourly rain forecast and run verdict for Seattle, Washington, US.
Running in Seattle means embracing the Pacific Northwest's legendary drizzle and overcast skies. Whether it's a misty morning around Green Lake, persistent light rain on the Burke-Gilman Trail, or a rare sunny day that makes the mountain views worth every grey one, knowing whether to head out before you lace up matters. RainOrRun checks live conditions in Seattle right now and gives you an instant verdict — plus the best hourly window if the weather's on the fence. We'll also recommend the right gear for whatever Seattle's famously grey weather is throwing at you today.
What to wear
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How often does it rain in Seattle?
Seattle records around 1203mm of rain a year, spread across about 149 days — roughly 41% of all days, or 12 days in an average month. In practice that makes rain a regular feature of running in Seattle rather than an exception — close to one day in two. A decent waterproof and a peaked cap earn their place in the kit bag year-round.
The wettest month is December, averaging 189mm across about 19 rainy days. The driest is July, with 14mm over roughly 3 days. Average lows in February drop to 2.5°C, cold enough that gloves, a headband and a thermal base layer make a real difference on early runs. Summer highs peak around 24.8°C in August, comfortable for most daytime running.
Those are ten-year averages, not a forecast. What actually matters on the day is the next twelve hours — which is what the live verdict and hourly strip at the top of this page are for.
| Month | Rainfall | Rainy days | Avg high | Avg low |
|---|---|---|---|---|
| January | 186mm | 18 | 8.1°C | 2.7°C |
| February | 125mm | 15 | 8.3°C | 2.5°C |
| March | 108mm | 15 | 11°C | 3.7°C |
| April | 85mm | 14 | 13.7°C | 5.8°C |
| May | 53mm | 10 | 17.9°C | 9.4°C |
| June | 51mm | 8 | 21°C | 12.2°C |
| July | 14mm | 3 | 24.6°C | 14.6°C |
| August | 27mm | 5 | 24.8°C | 15°C |
| September | 63mm | 10 | 20.4°C | 12.7°C |
| October | 126mm | 14 | 15.1°C | 8.9°C |
| November | 176mm | 18 | 10.2°C | 5.2°C |
| December | 189mm | 19 | 7.4°C | 3°C |
Historical data: Open-Meteo archive, 2015–2024. A “rainy day” means at least 1mm of precipitation.
Running in Seattle: common questions
Will it rain in Seattle today?
The forecast card at the top of this page shows Seattle's rain probability for the current hour, plus an hour-by-hour breakdown for the rest of the day, using live Open-Meteo data. Historically, Seattle sees rain on about 149 days a year, so on any given day there is roughly a 41% chance of some rain falling.
Is it a good day to run in Seattle?
RainOrRun scores the live Seattle forecast on rain probability, rainfall amount, temperature, wind speed and severe weather, then returns a single verdict: Go, Maybe, or Don't Bother. A Maybe means conditions are borderline and it is worth picking your window rather than skipping the run.
What is the best time to run in Seattle today?
The hourly strip above highlights the best single window of the day for Seattle — the hour combining the lowest rain probability with the most comfortable temperature. You can also check up to eight days ahead using the date picker if you are planning a long run or a race.
What should I wear running in Seattle today?
The gear section on this page updates with the live Seattle forecast: a waterproof jacket and peaked cap when rain probability goes above 40%, a thermal base layer and gloves below 8 degrees Celsius, and a high-vis vest when wind or low light make you harder to see.
What is the wettest month in Seattle?
December is the wettest month in Seattle, averaging 189mm of rain across about 19 rainy days. July is the driest, with around 14mm over roughly 3 days. Figures are ten-year averages covering 2015 to 2024.
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