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Brockville Sea Temperature in October

Ontario, Canada

September Brockville year-round → November

Average sea temperature for Brockville, Canada across October, based on 10 years of daily readings.

Average

15.96° C

High

19.82° C

Low

11.05° C

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

October is the 4th warmest of 12 months at Brockville. On average the water sits 4.9° than the year-round mean of 11.06° C.

Compared to September, October is 4.6° cooler than (20.61° C in September). By November the water is usually 10.63° C.

Brockville Day-by-Day Water Temperature in October

10-year low, average and high

9.5° C
12.5° C
15.5° C
18.5° C
21.5° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through October. Range Average

Each vertical bar above is one day of October. The shaded band covers the range the water has reached on that day across the last 10 years — the lowest reading at the bottom, the highest at the top. The line running through the bars is the daily average over those 10 years, so you can see the typical shape of the month at Brockville.

A narrow band means the temperature on that day has stayed close to the average year on year. A taller band means it has swung more, often because of changeable weather around that time of year. Hovering a day pulls up its low, average, and high.

October Water Temperature Table for Brockville

10-year daily averages

Day Average Low High
October 1 18.73° C 16.84° C 19.67° C
October 2 18.55° C 16.53° C 19.53° C
October 3 18.38° C 16.3° C 19.71° C
October 4 18.21° C 16.13° C 19.82° C
October 5 18.05° C 16.06° C 19.57° C
October 6 17.89° C 15.57° C 19.52° C
October 7 17.75° C 15.24° C 19.41° C
October 8 17.73° C 15.54° C 19.3° C
October 9 17.5° C 15.79° C 19.01° C
October 10 17.02° C 15.46° C 18.5° C
October 11 16.93° C 15.38° C 18.47° C
October 12 16.73° C 15.09° C 18.39° C
October 13 16.52° C 14.84° C 18.43° C
October 14 16.37° C 14.96° C 18.36° C
October 15 16.2° C 14.78° C 18.31° C
October 16 15.92° C 14.45° C 18.15° C
October 17 15.66° C 14.1° C 17.7° C
October 18 15.35° C 13.22° C 17.14° C
October 19 15.16° C 12.61° C 16.72° C
October 20 15.13° C 12.51° C 16.7° C
October 21 15° C 12.62° C 16.72° C
October 22 14.76° C 12.48° C 16.79° C
October 23 14.66° C 12.36° C 16.47° C
October 24 14.55° C 12.38° C 16.13° C
October 25 14.4° C 12.41° C 16.04° C
October 26 14.19° C 12.08° C 15.82° C
October 27 13.91° C 12° C 15.54° C
October 28 13.71° C 11.93° C 15.22° C
October 29 13.57° C 11.52° C 14.85° C
October 30 13.28° C 11.16° C 14.58° C
October 31 12.98° C 11.05° C 14.29° C

Where October Sits in the Year

October highlighted

-3.0° C
4.8° C
12.5° C
20.3° C
28.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
3° C
1.79° C
1.57° C
3.75° C
8.53° C
15.68° C
21.87° C
23.08° C
20.61° C
15.96° C
10.63° C
6.21° C
10-year monthly history for Brockville. Bars span historical low to high; the line marks the monthly average. Range Average
January → February → March → April → May → June → July → August → September → October → November → December →

Nearby Locations in October

Compare other Canada water for the same month

Brockville Location

44.5895, -75.6843

44.58952, -75.68429 View on OpenStreetMap →

Brockville sits at 44.5895°N, 75.6843°W, on the coast of Ontario, Canada. The marker on the map shows the spot the readings on this page come from. It usually sits a short distance from the town centre, out on the open water itself, so the numbers stay tied to the coast rather than a generic point inland.

Coastlines bend, headlands focus the water, and the temperature can run noticeably differently between two beaches that look close together on a map. Comparing nearby locations is a quick way to see how local geography is shaping the readings.

Nearest locations to Brockville