Toronto in August
Find out everything about the water temperature in Toronto in August. Average, minimum and maximum recorded temperatures as well as daily temperature in August for the last two years. Compare the current month's water temperature data with other months of the year.
Water temperature in August
Minimum:
60.0 °F
Average:
70.7 °F
Maximum:
77.6 °F
Water temperature in Toronto in August
In the city of Toronto, the month of August is somewhat comfortable for swimming. The minimum recorded temperature during this month was 60.0°F on August 22, 2023, with an average temperature being 70.7°F and a maximum temperature reaching 77.6°F on August 13, 2025.
| Date | 10 years average | 2025 | 2024 |
|---|---|---|---|
| Aug 1 | 69.4°F | 72.6°F | 75.3°F |
| Aug 2 | 70.1°F | 72.2°F | 75.0°F |
| Aug 3 | 70.1°F | 71.9°F | 74.7°F |
| Aug 4 | 70.4°F | 70.9°F | 74.9°F |
| Aug 5 | 70.6°F | 70.4°F | 74.5°F |
| Aug 6 | 70.7°F | 71.9°F | 74.9°F |
| Aug 7 | 71.1°F | 72.0°F | 73.9°F |
| Aug 8 | 71.6°F | 72.3°F | 73.8°F |
| Aug 9 | 71.2°F | 71.9°F | 73.2°F |
| Aug 10 | 71.2°F | 71.9°F | 73.2°F |
| Aug 11 | 70.9°F | 71.5°F | 72.9°F |
| Aug 12 | 71.2°F | 76.1°F | 73.2°F |
| Aug 13 | 71.4°F | 77.6°F | 73.3°F |
| Aug 14 | 70.9°F | 75.1°F | 72.8°F |
| Aug 15 | 71.2°F | 75.5°F | 73.1°F |
| Aug 16 | 71.3°F | 75.7°F | 69.3°F |
| Aug 17 | 71.5°F | 76.1°F | 71.3°F |
| Aug 18 | 71.3°F | 75.3°F | 69.3°F |
| Aug 19 | 71.6°F | 75.7°F | 71.8°F |
| Aug 20 | 71.2°F | 75.3°F | 71.7°F |
| Aug 21 | 70.3°F | 74.9°F | 67.1°F |
| Aug 22 | 70.4°F | 73.8°F | 67.7°F |
| Aug 23 | 70.5°F | 73.1°F | 66.4°F |
| Aug 24 | 70.6°F | 73.1°F | 66.4°F |
| Aug 25 | 70.3°F | 73.6°F | 66.0°F |
| Aug 26 | 70.3°F | 72.9°F | 67.1°F |
| Aug 27 | 70.1°F | 72.4°F | 68.1°F |
| Aug 28 | 70.1°F | 70.9°F | 69.9°F |
| Aug 29 | 70.1°F | 70.1°F | 70.3°F |
| Aug 30 | 70.5°F | 69.6°F | 70.1°F |
| Aug 31 | 70.2°F | 69.4°F | 69.0°F |
In an average year, Toronto offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Toronto was recorded on August 13, 2025, reaching a 77.6°F. While the coldest temperature occurred on March 16, 2025, dipping to 33.0°F. The average readings by season are 38.4°F in Winter, 40.5°F in Spring, 64.7°F in Summer, and 57.9°F in Autumn.
In August, the temperature is higher than July's average of 67.3°F and September's average of 67.5°F.