Water temperature in Toronto (ON) in December
Is it warm enough to swim in Toronto in December? Average water temperature in Toronto in December is 5.3°C and therefore is not suitable for comfortable swimming. The warmest water in Toronto in December is 8.1°C, and the coldest is 2.8°C. Average high air temperature in Toronto in December is 2°C, and average low temperature is -3°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Toronto
Changes water temperature in Toronto in December 2024, 2023
To get an accurate forecast for the water temperature in Toronto for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Toronto, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of December.
You can choose any other years:
| Day | 2024 | 2023 | Min | Max |
|---|---|---|---|---|
| 1 December | 6.8°C | 5.5°C | 4.9°C | 8.1°C |
| 2 December | 7.4°C | 5.6°C | 5.1°C | 7.7°C |
| 3 December | 7.1°C | 5.7°C | 4.9°C | 7.5°C |
| 4 December | 6.9°C | 5.4°C | 4.6°C | 7°C |
| 5 December | 6.9°C | 5.5°C | 4.8°C | 7.1°C |
| 6 December | 6.7°C | 5.5°C | 4.9°C | 6.7°C |
| 7 December | 6.5°C | 6°C | 4.6°C | 6.7°C |
| 8 December | 6°C | 5.9°C | 4.5°C | 6.6°C |
| 9 December | 5.8°C | 5.8°C | 4.5°C | 6.6°C |
| 10 December | 5.5°C | 5.6°C | 4.5°C | 7°C |
| 11 December | 5.4°C | 5.9°C | 4.2°C | 7.1°C |
| 12 December | 6.1°C | 5.6°C | 4.1°C | 7.1°C |
| 13 December | 5.8°C | 5.2°C | 3.9°C | 6.9°C |
| 14 December | 5.4°C | 4.9°C | 4°C | 6.9°C |
| 15 December | 5.6°C | 5.3°C | 4.2°C | 7°C |
| Day | 2024 | 2023 | Min | Max |
|---|---|---|---|---|
| 16 December | 5.6°C | 5.2°C | 3.7°C | 7°C |
| 17 December | 5.7°C | 5.1°C | 3.8°C | 6.4°C |
| 18 December | 5.6°C | 5°C | 3.4°C | 6.5°C |
| 19 December | 5.5°C | 5.3°C | 3.1°C | 6.5°C |
| 20 December | 5.4°C | 5.1°C | 3.8°C | 6.1°C |
| 21 December | 5.3°C | 5°C | 3.8°C | 6.4°C |
| 22 December | 5.2°C | 4.8°C | 3.8°C | 6.5°C |
| 23 December | 5.1°C | 4.6°C | 3.8°C | 6.6°C |
| 24 December | 5.1°C | 4.4°C | 3.7°C | 7°C |
| 25 December | 4.9°C | 4.6°C | 3.6°C | 6.3°C |
| 26 December | 4.6°C | 4.4°C | 2.9°C | 6.5°C |
| 27 December | 4.3°C | 4.6°C | 2.8°C | 5.9°C |
| 28 December | 4.9°C | 4.9°C | 3.2°C | 5.6°C |
| 29 December | 4.7°C | 5.1°C | 3.3°C | 5.4°C |
| 30 December | 4.7°C | 4.5°C | 3.8°C | 6°C |
| 31 December | 4.5°C | 4.5°C | 3.5°C | 5.4°C |
Average water temperature in Toronto in December over a decade
| 2015 | 2016 | 2017 | 2018 | 2019 |
| 6.2°C | 5.5°C | 5.4°C | 4.7°C | 4.9°C |
| 2020 | 2021 | 2022 | 2023 | 2024 |
| 5.5°C | 5.7°C | 4.9°C | 5.2°C | 5.6°C |
Toronto sea state in December
Chart comparing the height of waves in Toronto in December over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.
Weather and climate in Toronto in December
This data display average monthly climate indicators in Toronto in December based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip
- Average HIGH temperature2°C
- Average LOW temperature-3°C
- Average rainfall days7 days
- Average rainfall1.5''/38mm
- Average daylight9h
- Average sunshine2.5h
- Average UV index1
- Average snowfall9.5''/241mm
Toronto water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
