Water temperature in Brighton (ON) in September

Is it warm enough to swim in Brighton in September? Average water temperature in Brighton in September is 20.1°C and therefore suitable for comfortable swimming. The warmest water in Brighton in September is 23.8°C, and the coldest is 16.1°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Brighton

Changes water temperature in Brighton in September 2025, 2024

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

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 September	18.7°C	21.7°C	18.7°C	22.7°C
2 September	18.9°C	21.4°C	18.9°C	23.1°C
3 September	19.7°C	20.8°C	19.5°C	22.8°C
4 September	19.7°C	20°C	19.7°C	22.9°C
5 September	19.5°C	20.4°C	18.5°C	23.6°C
6 September		20.3°C	18.3°C	23.8°C
7 September		20.3°C	18.5°C	23.8°C
8 September		20.3°C	18.5°C	23°C
9 September		20.1°C	18°C	22.6°C
10 September		19.2°C	17.9°C	22.9°C
11 September		18.7°C	17.9°C	22.2°C
12 September		19.1°C	18.3°C	22.4°C
13 September		19.4°C	18.5°C	22°C
14 September		20.1°C	18.5°C	21.7°C
15 September		20.7°C	18.7°C	21.9°C

Day	2024	Min	Max
16 September	21.2°C	17.8°C	22.5°C
17 September	21.1°C	18°C	22.8°C
18 September	21.2°C	17.9°C	22.7°C
19 September	21.3°C	17.4°C	22.1°C
20 September	21.4°C	17.3°C	22°C
21 September	21.4°C	17.3°C	21.8°C
22 September	21.2°C	16.6°C	21.3°C
23 September	20.9°C	16.4°C	21.3°C
24 September	20.5°C	16.6°C	21.3°C
25 September	20.1°C	16.7°C	22°C
26 September	20.8°C	16.9°C	22.2°C
27 September	20.1°C	16.9°C	22.3°C
28 September	20.3°C	17.1°C	21°C
29 September	20.7°C	16.1°C	20.7°C
30 September	19.9°C	16.1°C	19.9°C

Average water temperature in Brighton in September over a decade

2015	2016	2017	2018	2019
20.5°C	21°C	20.4°C	21.4°C	18.9°C

2020	2021	2022	2023	2024
19.8°C	20.7°C	20.3°C	20.2°C	20.5°C

Brighton sea state in September

Chart comparing the height of waves in Brighton in September 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.

Brighton 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 September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
North Beach	20.3°C	16.7°C	24°C
Prince Edward	20.4°C	16.5°C	24°C
Sandbanks	20.4°C	15.6°C	24°C
Port Hope	19.9°C	14.7°C	23.7°C
Hamlin Beach	20.6°C	17°C	24.3°C
Picton	20.5°C	16.1°C	23.8°C
Port Darlington	19.8°C	15.8°C	23.8°C
Bowmanville	19.8°C	15.8°C	23.8°C
Sodus Point	20.7°C	16.8°C	24.5°C
Oshawa	19.6°C	15.5°C	23.7°C

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Our report for Brighton 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