Seattle in October
Find out everything about the water temperature in Seattle in October. Average, minimum and maximum recorded temperatures as well as daily temperature in October for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in October
Minimum:
52.0 °F
Average:
54.5 °F
Maximum:
57.2 °F
Sea water temperature in Seattle in October
In the city of Seattle, the month of October is too cold for swimming. The minimum recorded temperature during this month was 52.0°F on October 30, 2020, with an average temperature being 54.5°F and a maximum temperature reaching 57.2°F on October 1, 2017.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Oct 1 | 55.9°F | 55.8°F | 55.7°F |
| Oct 2 | 55.6°F | 55.8°F | 55.4°F |
| Oct 3 | 55.6°F | 55.6°F | 55.3°F |
| Oct 4 | 55.5°F | 55.7°F | 54.4°F |
| Oct 5 | 55.3°F | 55.8°F | 56.6°F |
| Oct 6 | 55.3°F | 56.0°F | 55.9°F |
| Oct 7 | 55.4°F | 55.5°F | 55.9°F |
| Oct 8 | 55.3°F | 55.0°F | 55.6°F |
| Oct 9 | 55.3°F | 55.7°F | 55.7°F |
| Oct 10 | 55.1°F | 54.4°F | 54.8°F |
| Oct 11 | 55.1°F | 56.0°F | 54.7°F |
| Oct 12 | 54.9°F | 55.5°F | 54.5°F |
| Oct 13 | 54.8°F | 55.3°F | 55.3°F |
| Oct 14 | 54.9°F | 54.9°F | 56.4°F |
| Oct 15 | 54.6°F | 54.7°F | 55.9°F |
| Oct 16 | 54.5°F | 54.4°F | 55.6°F |
| Oct 17 | 54.5°F | 54.1°F | 56.5°F |
| Oct 18 | 54.6°F | 55.0°F | 56.8°F |
| Oct 19 | 54.3°F | 54.5°F | 55.9°F |
| Oct 20 | 54.2°F | 54.1°F | 55.7°F |
| Oct 21 | 54.2°F | 53.8°F | 55.3°F |
| Oct 22 | 54.0°F | 53.1°F | 54.6°F |
| Oct 23 | 53.8°F | 53.7°F | 54.5°F |
| Oct 24 | 53.7°F | 53.3°F | 54.3°F |
| Oct 25 | 53.6°F | 53.6°F | 54.0°F |
| Oct 26 | 53.5°F | 54.0°F | 53.5°F |
| Oct 27 | 53.5°F | 53.7°F | 54.1°F |
| Oct 28 | 53.4°F | 53.2°F | 55.0°F |
| Oct 29 | 53.3°F | 54.5°F | 54.1°F |
| Oct 30 | 53.6°F | 53.8°F | 54.1°F |
| Oct 31 | 53.4°F | 53.4°F | 53.9°F |
In an average year, Seattle offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Seattle was recorded on July 6, 2021, reaching a 63.4°F. While the coldest temperature occurred on February 5, 2014, dipping to 44.4°F. The average readings by season are 47.6°F in Winter, 49.6°F in Spring, 57.1°F in Summer, and 54.3°F in Autumn.
October's average temperature is a slight drop from September's average of 56.8°F. In November, the temperature is expected to decrease further, potentially averaging around 51.7°F.