Best time to visit Seattle
Our pick for sun: July to August.
The best months
- SunJuly to August
- CityJuly to September
…
The twelve months at a glance
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sun | Best avoided, 18/100 | Best avoided, 20/100 | Best avoided, 20/100 | Best avoided, 20/100 | Fair, 37/100 | Good, 63/100 | Ideal, 90/100 | Ideal, 90/100 | Good, 70/100 | Best avoided, 20/100 | Best avoided, 20/100 | Best avoided, 20/100 |
| City | Best avoided, 27/100 | Fair, 38/100 | Fair, 44/100 | Fair, 52/100 | Good, 69/100 | Good, 77/100 | Ideal, 91/100 | Ideal, 91/100 | Ideal, 83/100 | Fair, 55/100 | Fair, 39/100 | Best avoided, 27/100 |
- Ideal
- Good
- Fair
- Best avoided
- Risk flagged
Temperatures and rain
See the month-by-month values
| Month | High | Low | Rain |
|---|---|---|---|
| January | 8°C | 4°C | 182 mm |
| February | 9°C | 4°C | 127 mm |
| March | 11°C | 5°C | 146 mm |
| April | 14°C | 7°C | 120 mm |
| May | 18°C | 10°C | 82 mm |
| June | 20°C | 12°C | 66 mm |
| July | 24°C | 14°C | 29 mm |
| August | 24°C | 14°C | 36 mm |
| September | 21°C | 12°C | 71 mm |
| October | 15°C | 8°C | 139 mm |
| November | 10°C | 5°C | 200 mm |
| December | 7°C | 3°C | 184 mm |
Estimated flight time
- From YUL : about 5 h 10 min
- From YYZ : about 4 h 40 min
- From YVR : about 50 min
Estimate of a nonstop flight computed from the distance: not a schedule. Connections lengthen the trip.
Getting to Seattle with points
Keep going
Where this data comes from
Temperatures, sunshine and rain: monthly normals we computed over 1991-2020. These are estimates from a climate reanalysis, not station readings.
- ERA5 reanalysis-era5-single-levels-timeseries (C3S, CC-BY)
Contains modified Copernicus Climate Change Service information (ERA5, 2026, CC BY 4.0 licence). Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains. Sea temperature: NOAA OISST v2.1 (Huang et al., 2021, J. Climate 34, doi:10.1175/JCLI-D-20-0166.1).