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Saginaw Bay Sea Temperature in September

Michigan, United States

August Saginaw Bay year-round → October

Average sea temperature for Saginaw Bay, United States across September, based on 10 years of daily readings.

Average

19.67° C

High

23.52° C

Low

16.02° 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.

September is the 3rd warmest of 12 months at Saginaw Bay. On average the water sits 9.2° than the year-round mean of 10.52° C.

Compared to August, September is 2.7° cooler than (22.42° C in August). By October the water is usually 14.27° C.

Saginaw Bay Day-by-Day Water Temperature in September

10-year low, average and high

14.5° C
17.1° C
19.8° C
22.4° C
25.0° C
1
5
10
15
20
25
30
Day-by-day low and high band with the 10-year daily average through September. Range Average

Each vertical bar above is one day of September. 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 Saginaw Bay.

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.

September Water Temperature Table for Saginaw Bay

10-year daily averages

Day Average Low High
September 1 21.13° C 18.96° C 23.52° C
September 2 21.02° C 18.9° C 23.27° C
September 3 20.98° C 18.99° C 22.97° C
September 4 20.92° C 18.73° C 23.09° C
September 5 20.85° C 18.25° C 23.47° C
September 6 20.63° C 17.87° C 22.58° C
September 7 20.3° C 17.4° C 23.06° C
September 8 19.85° C 16.86° C 22.83° C
September 9 19.48° C 16.83° C 22.67° C
September 10 19.43° C 17.04° C 22.38° C
September 11 19.44° C 17.32° C 21.92° C
September 12 19.44° C 17.68° C 21.6° C
September 13 19.48° C 17.99° C 21.19° C
September 14 19.56° C 17.88° C 20.74° C
September 15 19.66° C 17.54° C 20.94° C
September 16 19.75° C 17.75° C 20.91° C
September 17 19.83° C 18.07° C 21.12° C
September 18 19.88° C 17.71° C 21.16° C
September 19 19.84° C 17.36° C 21.09° C
September 20 19.84° C 17.24° C 21.19° C
September 21 19.83° C 16.98° C 21.35° C
September 22 19.74° C 16.86° C 21.57° C
September 23 19.45° C 16.82° C 21.83° C
September 24 19.29° C 16.83° C 22.37° C
September 25 19.09° C 17.15° C 22.7° C
September 26 18.86° C 17.25° C 22.71° C
September 27 18.51° C 17.1° C 22.09° C
September 28 18.14° C 16.59° C 20.85° C
September 29 18.09° C 16.32° C 20.06° C
September 30 17.91° C 16.02° C 19.86° C

Where September Sits in the Year

September highlighted

-3.5° C
4.6° C
12.8° C
20.9° C
29.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1.42° C
0.74° C
1.3° C
4.04° C
10.72° C
17.76° C
22.05° C
22.42° C
19.67° C
14.27° C
8.04° C
3.75° C
10-year monthly history for Saginaw Bay. 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 September

Compare other United States water for the same month

Saginaw Bay Location

43.8453, -83.6774

43.84526, -83.67739 View on OpenStreetMap →

Saginaw Bay sits at 43.8453°N, 83.6774°W, on the coast of Michigan, United States. 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 Saginaw Bay