You should expect the average temperature in Seattle right through May is 11. Throughout the month you should see a high of 18 and average daily low being 8 celsius. Discover even more info below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 11 |
| High Temperature | 18 |
| Low Temperature | 8 |
| Sunshine Per Day | 9 |
Useful Links: Seattle Weather: Average Weather & Yearly Climate