Water temperature in Lake Washington (WA) in February
Is it warm enough to swim in Lake Washington in February? Average water temperature in Lake Washington in February is 41°F and therefore is not suitable for comfortable swimming. The warmest water in Lake Washington in February is 48.2°F, and the coldest is 37.4°F. To find out the water temperature today and in the coming days, go to Current water temperature in Lake Washington
Changes water temperature in Lake Washington in February 2026, 2025
To get an accurate forecast for the water temperature in Lake Washington for any chosen month, compare two years within a 10 year range using the chart below.
You can choose any other years:
| Day |
2026 |
2025 |
| February 1 | 44.6°F | 39.2°F |
| February 2 | 44.6°F | 39.2°F |
| February 3 | 44.6°F | 39.2°F |
| February 4 | 44.6°F | 39.2°F |
| February 5 | 44.6°F | 39.2°F |
| February 6 | 44.6°F | 39.2°F |
| February 7 | 44.6°F | 39.2°F |
| February 8 | 44.6°F | 39.2°F |
| February 9 | 44.6°F | 39.2°F |
| February 10 | 44.6°F | 39.2°F |
| February 11 | 44.6°F | 39.2°F |
| February 12 | 44.6°F | 39.2°F |
| February 13 | 42.8°F | 39.2°F |
| February 14 | 42.8°F | 39.2°F |
| February 15 | 41°F | 39.2°F |
| Day |
2026 |
2025 |
| February 16 | 41°F | 39.2°F |
| February 17 | 39.2°F | 41°F |
| February 18 | 39.2°F | 41°F |
| February 19 | 39.2°F | 41°F |
| February 20 | 39.2°F | 41°F |
| February 21 | 39.2°F | 41°F |
| February 22 | | 41°F |
| February 23 | | 41°F |
| February 24 | | 41°F |
| February 25 | | 41°F |
| February 26 | | 41°F |
| February 27 | | 42.8°F |
| February 28 | | 42.8°F |
Average water temperature in Lake Washington in February over a decade
| 2016 | 2017 | 2018 | 2019 | 2020 |
| | 42.8°F | 38.3°F | 42.3°F |
| 2021 | 2022 | 2023 | 2024 | 2025 |
| 40.3°F | 40.8°F | 40.6°F | 42.6°F | 40.1°F |
Lake Washington water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
