Average annual temperature is 11.0 °C
Absolute maximum temperature: 31.3 °C
Absolute minimum temperature: -5.5 °C
Number of sunny days: 174 days
Number of rainy days: 189 days
Number of snow days: 2 days
Look at detailed online map of City of Seattle
* Weather data for City of Seattle United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.6 | 12.5 | 15.3 | 22.8 | 28.5 | 27.9 | 29.0 | 31.3 | 26.7 | 22.8 | 15.3 | 14.2 |
| Average daytime temperature (°C) | 8.3 | 7.6 | 10.1 | 12.0 | 20.0 | 21.6 | 25.5 | 25.8 | 20.6 | 15.5 | 10.0 | 9.5 |
| Average temperature (°C) | 5.3 | 4.1 | 5.6 | 7.7 | 14.3 | 15.5 | 19.0 | 19.7 | 15.3 | 11.3 | 6.9 | 6.7 |
| Average night temperature (°C) | 2.9 | 1.8 | 2.4 | 4.9 | 10.1 | 11.3 | 14.0 | 15.3 | 12.2 | 8.5 | 4.7 | 4.5 |
| Absolute minimum temperature (°C) | -4.3 | -5.5 | -1.9 | 1.4 | 6.7 | 8.3 | 11.9 | 12.8 | 8.6 | 0.4 | -1.8 | -1.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.3 | 11.9 | 13.6 | 15.1 | 15.9 | 15.5 | 14.2 | 12.6 | 10.9 | 9.3 | 8.5 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.6 | 4.9 | 7.4 | 7.0 | 10.7 | 11.4 | 13.2 | 11.3 | 8.2 | 6.3 | 5.5 | 2.9 |
| Precipitation (mm) | 115 | 63 | 79 | 136 | 20 | 33 | 5 | 29 | 78 | 85 | 140 | 218 |
| Sunny days | 4 | 10 | 12 | 7 | 21 | 21 | 26 | 19 | 15 | 16 | 16 | 7 |
| Rainy days | 26 | 17 | 19 | 23 | 10 | 9 | 5 | 12 | 15 | 15 | 14 | 24 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit City of Seattle during the most sunny months:
Months with the longest average daylight duration in City of Seattle:
The largest precipitation sum in City of Seattle is at