Seattle weather
Loading live data…Latest for Seattle: European (ECMWF): 8° Clear · American (NOAA GFS): 7° Clear · German (DWD ICON): 7° Clear.
The weather map: all three models at once
European, American, German side by side around Seattle and nearby towns.Live rain radar →Hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
10-day forecast, out to 14 days
where the models agree, and where they splitHeading to Seattle? Seattle, USA, sits at 47.6°N in a temperate climate zone. Before you lock in outdoor plans, compare how the three global models - European (ECMWF), American (GFS) and German (ICON) - forecast Seattle right now. Where they agree you can trust it; the days they split are exactly when a single weather app is least reliable. For a city break, the rain hours below tell you which days to plan indoors.
Best time to visit Seattle
The most comfortable time to visit Seattle is usually May, June, July and August, when daytime highs sit in the pleasant 16-26°C range and the heaviest November rain is behind you.
Seattle weather by month
what to expect in Seattle through the year, 1991-2020 normals, Seattle Tacoma Intl AP (WMO)Here is Seattle's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Seattle by season.
Seattle compared with Toronto
30-year averages: daytime highs month by month, rain and sunlightWarmer through the year
average daytime high: Seattle 16°C, Toronto 14°C
Rain over a year
Seattle 999 mm, Toronto 924 mm
Sunlight vs a clear sky
solar energy reaching the ground as a share of a cloudless day, averaged over the year (not sunshine hours)
On 30-year averages Seattle runs 2°C warmer than Toronto, with every month between −2°C and +9°C. Over a year it gets 8% more rain than Toronto.
Month by month in numbers
| Month | Seattle | Toronto | Difference | Sunlight, Seattle | Sunlight, Toronto |
|---|---|---|---|---|---|
| January | 9°C | 0°C | +9°C | 52% | 56% |
| February | 10°C | 1°C | +9°C | 60% | 57% |
| March | 12°C | 5°C | +7°C | 58% | 64% |
| April | 15°C | 12°C | +3°C | 63% | 67% |
| May | 19°C | 19°C | ±0°C | 66% | 72% |
| June | 22°C | 24°C | −2°C | 68% | 76% |
| July | 25°C | 27°C | −2°C | 78% | 79% |
| August | 25°C | 26°C | −1°C | 78% | 79% |
| September | 22°C | 22°C | ±0°C | 74% | 76% |
| October | 16°C | 15°C | +1°C | 63% | 63% |
| November | 11°C | 8°C | +3°C | 54% | 60% |
| December | 8°C | 3°C | +5°C | 51% | 54% |
Daytime highs and lows on this page are 1991-2020 averages. Seattle: station normals from Seattle Tacoma Intl AP (WMO), rain included. Toronto: station normals from Toronto City (WMO); rain is the CHELSA 1981-2010 climatology on a 1 km grid. Sunlight vs a clear sky is NASA POWER's long-term average of the solar energy reaching the ground as a share of a cloudless day; it compares cloudiness and is not a count of sunshine hours. Toronto stands in for Canada here; other cities have their own climate tables.