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Halfmoon Bay, Umpqua River Sea Temperature in July

Oregon, United States

June Halfmoon Bay, Umpqua River year-round → August

Average sea temperature for Halfmoon Bay, Umpqua River, United States across July, based on 10 years of daily readings.

Average

11.7° C

High

17.56° C

Low

9.05° C

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a real risk.

July is the 5th warmest of 12 months at Halfmoon Bay, Umpqua River. On average the water sits 0.3° than the year-round mean of 11.43° C.

Compared to June, July is 0.0° about the same as (11.75° C in June). By August the water is usually 12.94° C.

Halfmoon Bay, Umpqua River Day-by-Day Water Temperature in July

10-year low, average and high

7.5° C
10.4° C
13.3° C
16.1° C
19.0° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through July. Range Average

Each vertical bar above is one day of July. 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 Halfmoon Bay, Umpqua River.

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.

July Water Temperature Table for Halfmoon Bay, Umpqua River

10-year daily averages

Day Average Low High
July 1 11.98° C 10° C 15.02° C
July 2 11.66° C 9.75° C 14.84° C
July 3 11.46° C 9.8° C 14.17° C
July 4 11.42° C 9.78° C 13.72° C
July 5 11.52° C 10.06° C 13.52° C
July 6 11.6° C 9.99° C 13.54° C
July 7 11.8° C 9.69° C 13.83° C
July 8 11.88° C 9.63° C 13.69° C
July 9 11.94° C 10.28° C 13.64° C
July 10 11.83° C 10.3° C 14.06° C
July 11 11.56° C 9.46° C 14.5° C
July 12 11.29° C 9.21° C 14.74° C
July 13 11.12° C 9.62° C 13.45° C
July 14 11.42° C 9.57° C 15.44° C
July 15 11.34° C 9.33° C 15.8° C
July 16 11.63° C 9.23° C 16.94° C
July 17 11.86° C 9.78° C 17.56° C
July 18 11.83° C 10.45° C 16.58° C
July 19 11.85° C 10.44° C 15.62° C
July 20 12.02° C 10.41° C 15.24° C
July 21 12.02° C 10.29° C 15.74° C
July 22 11.99° C 10.42° C 16.44° C
July 23 11.99° C 10.1° C 16.24° C
July 24 11.98° C 9.72° C 15.77° C
July 25 11.69° C 9.55° C 15.01° C
July 26 11.54° C 9.24° C 15.13° C
July 27 11.63° C 9.24° C 15.6° C
July 28 11.54° C 9.05° C 14.6° C
July 29 11.45° C 9.05° C 13.65° C
July 30 11.72° C 9.43° C 14.26° C
July 31 12.15° C 10.35° C 15.29° C

Where July Sits in the Year

July highlighted

7.5° C
10.4° C
13.3° C
16.1° C
19.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
10.72° C
10.25° C
10.04° C
10.48° C
11.46° C
11.75° C
11.7° C
12.94° C
12.97° C
12.43° C
11.48° C
10.95° C
10-year monthly history for Halfmoon Bay, Umpqua River. 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 July

Compare other United States water for the same month

Halfmoon Bay, Umpqua River Location

43.6750, -124.1920

43.67500, -124.19200 View on OpenStreetMap →

Halfmoon Bay, Umpqua River sits at 43.6750°N, 124.1920°W, on the coast of Oregon, 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 Halfmoon Bay, Umpqua River