Water temperature in Kingston (ON) in August
Is it warm enough to swim in Kingston in August? Average water temperature in Kingston in August is 22.8°C and therefore suitable for comfortable swimming. The warmest water in Kingston in August is 25.4°C, and the coldest is 19.4°C. Average high air temperature in Kingston in August is 24°C, and average low temperature is 15°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Kingston
Changes water temperature in Kingston in August 2025, 2024
To get an accurate forecast for the water temperature in Kingston for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Kingston, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of August.
You can choose any other years:
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| 1 August | 23.5°C | 24.4°C | 20.6°C | 24.7°C |
| 2 August | 22.8°C | 24.7°C | 20.3°C | 24.8°C |
| 3 August | 22.6°C | 24.5°C | 20.6°C | 24.6°C |
| 4 August | 22.7°C | 24.9°C | 20.4°C | 24.9°C |
| 5 August | 22.7°C | 24.9°C | 21°C | 24.9°C |
| 6 August | 22.8°C | 24.3°C | 21.6°C | 24.6°C |
| 7 August | 23°C | 23.8°C | 21.3°C | 25.1°C |
| 8 August | 23.3°C | 23.6°C | 21.4°C | 24.7°C |
| 9 August | 23.7°C | 23.6°C | 21.5°C | 24.6°C |
| 10 August | 23.5°C | 23.2°C | 21.7°C | 24.4°C |
| 11 August | 24.1°C | 23.1°C | 21.5°C | 24.8°C |
| 12 August | 24.5°C | 23°C | 21.5°C | 24.6°C |
| 13 August | 24.8°C | 22.7°C | 20.8°C | 24.8°C |
| 14 August | 24.7°C | 22.5°C | 20.5°C | 24.8°C |
| 15 August | 24.2°C | 22.8°C | 19.6°C | 24.4°C |
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| 16 August | 24.3°C | 22.9°C | 19.4°C | 24.6°C |
| 17 August | 23.6°C | 22.8°C | 19.5°C | 24.3°C |
| 18 August | 23.8°C | 22.6°C | 19.6°C | 24.1°C |
| 19 August | 23.5°C | 22.5°C | 20°C | 24.2°C |
| 20 August | 23.3°C | 22.4°C | 20.1°C | 24.2°C |
| 21 August | 22.4°C | 22.1°C | 20.5°C | 24°C |
| 22 August | 21.5°C | 21.4°C | 20.6°C | 24.3°C |
| 23 August | 21.9°C | 21.4°C | 20.6°C | 25.4°C |
| 24 August | 22.2°C | 21.1°C | 20.5°C | 24.7°C |
| 25 August | 21.9°C | 21.4°C | 20.6°C | 24.6°C |
| 26 August | 21.5°C | 21.8°C | 21.1°C | 24.9°C |
| 27 August | 21.4°C | 22.6°C | 21.1°C | 24.8°C |
| 28 August | 21.1°C | 22.8°C | 20.9°C | 24.2°C |
| 29 August | 21°C | 22.2°C | 21°C | 24.1°C |
| 30 August | 20.2°C | 21.6°C | 20.2°C | 23.9°C |
| 31 August | 19.9°C | 21.6°C | 19.9°C | 23.8°C |
Average water temperature in Kingston in August over a decade
| 2016 | 2017 | 2018 | 2019 | 2020 |
| 23.8°C | 21.9°C | 23.8°C | 22.9°C | 24.1°C |
| 2021 | 2022 | 2023 | 2024 | 2025 |
| 23.1°C | 23.7°C | 22.3°C | 22.9°C | 23°C |
Kingston sea state in August
Chart comparing the height of waves in Kingston in August 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 Kingston in August
This data display average monthly climate indicators in Kingston in August 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 temperature24°C
- Average LOW temperature15°C
- Average rainfall days11 days
- Average rainfall3.7''/94mm
- Average daylight14h
- Average sunshine7.7h
- Average UV index7
Kingston water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
