Water temperature in Clearwater Bay (ON) in September

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Is it warm enough to swim in Clearwater Bay in September? Average water temperature in Clearwater Bay in September is 17.9°C and therefore is not suitable for comfortable swimming. The warmest water in Clearwater Bay in September is 22.3°C, and the coldest is 13.2°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Clearwater Bay

Changes water temperature in Clearwater Bay in September 2025, 2024

To get an accurate forecast for the water temperature in Clearwater Bay for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Clearwater Bay, 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

Sunrise and Sunset

You can choose any other years:

Day	2025	2024	Min	Max
1 September	20.9°C	20.5°C	17.4°C	22°C
2 September	20.8°C	20.3°C	17.4°C	22.3°C
3 September	20.7°C	19.4°C	17.3°C	21.5°C
4 September	20.6°C	19.9°C	17.6°C	21.2°C
5 September	20.5°C	19.9°C	17.5°C	21.1°C
6 September		19.7°C	17.4°C	20.8°C
7 September		19.8°C	17.2°C	20.8°C
8 September		19.5°C	16.8°C	20.6°C
9 September		19.3°C	16.5°C	20.4°C
10 September		19.9°C	16.4°C	20.1°C
11 September		20°C	16.3°C	20°C
12 September		19.7°C	16.1°C	19.8°C
13 September		20.1°C	16°C	20.1°C
14 September		20.6°C	15.4°C	20.6°C
15 September		20.8°C	15.3°C	20.8°C

Day	2024	Min	Max
16 September	20.2°C	15.8°C	20.2°C
17 September	20.2°C	16°C	20.2°C
18 September	19.7°C	15.7°C	19.7°C
19 September	20.3°C	15.6°C	20.3°C
20 September	20°C	15.6°C	20°C
21 September	19.5°C	15.3°C	19.5°C
22 September	19.4°C	15°C	19.4°C
23 September	19°C	14.5°C	19°C
24 September	18.8°C	14.3°C	18.8°C
25 September	18.6°C	14.2°C	18.6°C
26 September	18.6°C	14.2°C	18.6°C
27 September	18.4°C	14.1°C	18.4°C
28 September	18.4°C	14°C	18.4°C
29 September	18.7°C	13.6°C	18.7°C
30 September	18.9°C	13.2°C	18.9°C

Clearwater Bay water temp chart in September

Average water temperature in Clearwater Bay in September over a decade

2015	2016	2017	2018	2019
18.3°C	18.2°C	17.2°C	17.3°C	16.5°C

2020	2021	2022	2023	2024
17.2°C	18.2°C	18.6°C	18°C	19.6°C

Clearwater Bay 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
Bigsby Island	17.7°C	13.1°C	22.8°C
Schroeder	14.6°C	7.9°C	19°C
Silver Bay	14.7°C	8.7°C	19.2°C
Beaver Bay	14.7°C	8.5°C	19.3°C
Tofte	14.6°C	8°C	18.9°C
Knife River	15.5°C	8.6°C	19.5°C
French River	15.9°C	9°C	20.4°C
Two Harbors	15.3°C	8.7°C	19.4°C
Lutsen	14.5°C	8.2°C	19.5°C
Duluth	16.3°C	10.8°C	21.3°C

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Our report for Clearwater Bay 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