Water temperature in Denver (CO) in January
Is it warm enough to swim in Denver in January? Average water temperature in Denver in January is 37.4°F and therefore is not suitable for comfortable swimming. The warmest water in Denver in January is 41°F, and the coldest is 33.8°F. To find out the water temperature today and in the coming days, go to Current water temperature in Denver
Changes water temperature in Denver in January 2026, 2025
To get an accurate forecast for the water temperature in Denver 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 |
|---|---|---|
| January 1 | 39.2°F | 37.4°F |
| January 2 | 41°F | |
| January 3 | 41°F | 37.4°F |
| January 4 | 41°F | 37.4°F |
| January 5 | 41°F | 37.4°F |
| January 6 | 41°F | 37.4°F |
| January 7 | 39.2°F | 37.4°F |
| January 8 | 39.2°F | 37.4°F |
| January 9 | 39.2°F | 35.6°F |
| January 10 | 39.2°F | 35.6°F |
| January 11 | 39.2°F | 35.6°F |
| January 12 | 39.2°F | 35.6°F |
| January 13 | 35.6°F | |
| January 14 | 35.6°F | |
| January 15 | 33.8°F |
| Day | 2026 | 2025 |
|---|---|---|
| January 16 | 33.8°F | |
| January 17 | 33.8°F | |
| January 18 | 33.8°F | |
| January 19 | 33.8°F | |
| January 20 | 33.8°F |
Denver water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
