Water temperature in Port Colborne (ON) in August

Is it warm enough to swim in Port Colborne in August? Average water temperature in Port Colborne in August is 23.4°C and therefore suitable for comfortable swimming. The warmest water in Port Colborne in August is 25.7°C, and the coldest is 20.9°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Port Colborne

Changes water temperature in Port Colborne in August 2025, 2024

To get an accurate forecast for the water temperature in Port Colborne for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Port Colborne, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of August.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 August	24.8°C	25.1°C	22°C	25.1°C
2 August	24.4°C	25.2°C	21.8°C	25.2°C
3 August	24.2°C	25.4°C	21.8°C	25.4°C
4 August	24.2°C	25.1°C	21.8°C	25.3°C
5 August	24.4°C	25°C	21.9°C	25.1°C
6 August	24.3°C	25.1°C	22.1°C	25.1°C
7 August	24.4°C	24.4°C	22.2°C	24.7°C
8 August	24.3°C	24.1°C	22.4°C	25°C
9 August	24.5°C	24.1°C	22.2°C	24.9°C
10 August	24.6°C	23.9°C	22.2°C	25.3°C
11 August	25.1°C	23.2°C	22.3°C	25.5°C
12 August	25.4°C	22.3°C	22.2°C	25.7°C
13 August	25.3°C	21.9°C	21.8°C	25.6°C
14 August	25.3°C	22.1°C	21.6°C	25.4°C
15 August	25.2°C	22.6°C	21°C	25.4°C

Day	2025	2024	Min	Max
16 August	25.1°C	23°C	20.9°C	25.2°C
17 August	24.5°C	23.2°C	21°C	25.1°C
18 August	24.7°C	22.8°C	21.1°C	25.1°C
19 August	24.4°C	22.8°C	21.4°C	25.4°C
20 August	24.3°C	22.1°C	21.4°C	25.4°C
21 August	24.1°C	21.7°C	21.7°C	25°C
22 August	23.2°C	21.4°C	21.4°C	25°C
23 August	22.9°C	21.3°C	21.3°C	25°C
24 August	22.9°C	21.4°C	21.4°C	24.7°C
25 August	22.8°C	21.8°C	21.8°C	24.8°C
26 August	22.2°C	22.3°C	21.6°C	25.2°C
27 August	21.8°C	22.6°C	21.5°C	25.2°C
28 August	21.8°C	22.5°C	21.8°C	25.4°C
29 August	21.4°C	22.2°C	21.4°C	25.7°C
30 August	21.1°C	22.6°C	21.1°C	25.5°C
31 August	20.9°C	23.7°C	20.9°C	25.3°C

Port Colborne water temp chart in August

Average water temperature in Port Colborne in August over a decade

2016	2017	2018	2019	2020
25°C	22.7°C	23.6°C	23.4°C	24.2°C

2021	2022	2023	2024	2025
24.3°C	24°C	22.7°C	23.1°C	24.4°C

Port Colborne sea state in August

Chart comparing the height of waves in Port Colborne 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.

Port Colborne water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in August. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Nickel Beach	23.3°C	20.9°C	25.7°C
Sherkston	23.5°C	21°C	25.9°C
Crystal Beach	23.6°C	21.1°C	26°C
Fort Erie	23.6°C	21.1°C	26°C
Goat Island	23.6°C	20.8°C	26°C
Rock Point	23.3°C	21°C	25.8°C
Port Maitland	23.3°C	21°C	25.9°C
Dunkirk	23.6°C	21.2°C	25.9°C
Thorold	22.2°C	17.7°C	25.3°C
Port Dalhousie	22.2°C	17.7°C	25.3°C

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Our report for Port Colborne is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature