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Long Point, Big Annemessex River, Chesapeake Bay, Maryland Sea Temperature in September

Maryland, United States

August Long Point, Big Annemessex River, Chesapeake Bay, Maryland year-round → October

Average sea temperature for Long Point, Big Annemessex River, Chesapeake Bay, Maryland, United States across September, based on 10 years of daily readings.

Average

24.9° C

High

28.78° C

Low

20.59° C

Water at this temperature is very pleasant to swim in. If you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

September is the 3rd warmest of 12 months at Long Point, Big Annemessex River, Chesapeake Bay, Maryland. On average the water sits 8.8° than the year-round mean of 16.14° C.

Compared to August, September is 2.4° cooler than (27.26° C in August). By October the water is usually 19.63° C.

Long Point, Big Annemessex River, Chesapeake Bay, Maryland Day-by-Day Water Temperature in September

10-year low, average and high

19.0° C
21.9° C
24.8° C
27.6° C
30.5° 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 Long Point, Big Annemessex River, Chesapeake Bay, Maryland.

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 Long Point, Big Annemessex River, Chesapeake Bay, Maryland

10-year daily averages

Day Average Low High
September 1 26.79° C 24.29° C 28.78° C
September 2 26.64° C 24.1° C 28.11° C
September 3 26.56° C 24.05° C 27.92° C
September 4 26.55° C 24.08° C 28.05° C
September 5 26.47° C 24.27° C 27.75° C
September 6 26.28° C 24.52° C 27.75° C
September 7 26.1° C 24.46° C 27.72° C
September 8 25.97° C 24.01° C 27.9° C
September 9 25.8° C 23.75° C 27.98° C
September 10 25.66° C 23.38° C 27.97° C
September 11 25.58° C 23.12° C 27.86° C
September 12 25.62° C 23.11° C 27.8° C
September 13 25.53° C 23.14° C 27.54° C
September 14 25.43° C 23.15° C 27.16° C
September 15 25.29° C 23.19° C 26.42° C
September 16 25.02° C 22.94° C 26.68° C
September 17 24.66° C 22.07° C 26.31° C
September 18 24.52° C 22.2° C 25.99° C
September 19 24.37° C 22.41° C 25.87° C
September 20 24.2° C 22.7° C 25.49° C
September 21 24.05° C 21.82° C 25.36° C
September 22 23.9° C 21.17° C 25.4° C
September 23 23.76° C 20.99° C 25.35° C
September 24 23.51° C 20.64° C 25.07° C
September 25 23.31° C 20.59° C 24.81° C
September 26 23.22° C 20.84° C 24.83° C
September 27 23.15° C 21.31° C 24.64° C
September 28 23.13° C 21.55° C 24.66° C
September 29 23.08° C 21.62° C 25.06° C
September 30 22.72° C 21.22° C 24.76° C

Where September Sits in the Year

September highlighted

-5.5° C
4.4° C
14.3° C
24.1° C
34.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
4.86° C
4.06° C
8.04° C
13.51° C
18.45° C
24.05° C
27.79° C
27.26° C
24.9° C
19.63° C
13.62° C
7.46° C
10-year monthly history for Long Point, Big Annemessex River, Chesapeake Bay, Maryland. 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

Long Point, Big Annemessex River, Chesapeake Bay, Maryland Location

38.0567, -75.8033

38.05670, -75.80330 View on OpenStreetMap →

Long Point, Big Annemessex River, Chesapeake Bay, Maryland sits at 38.0567°N, 75.8033°W, on the coast of Maryland, 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 Long Point, Big Annemessex River, Chesapeake Bay, Maryland