Gulf of Saint Lawrence Sea Temperature in July

Looking to find out what the average sea water temperature in Gulf of Saint Lawrence is for July? Find out what the lowest, highest, and average water temperatures are for Gulf of Saint Lawrence over the past 10 years.

Average water temperature in Gulf of Saint Lawrence for July

The average, high, and low temperatures below should help you if you can swim in the water in Gulf of Saint Lawrence in July.

12.05° C

(53.69° F)

highest: 16.91° C (62.44° F)
lowest: 6.29° C (43.32° F)

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 very big risk.

Water temperature range by day in July in Gulf of Saint Lawrence

The chart below shows the range of low and high temperatures by day for the month of July in Gulf of Saint Lawrence.

Water temperatures for July in Gulf of Saint Lawrence in recent years

Day	2024	2023	2022	2021
1	0° C	8.59° C	10.55° C	9.5° C
2	0° C	9.06° C	11.25° C	9.82° C
3	0° C	9.47° C	11.41° C	9.95° C
4	0° C	10° C	11.65° C	9.73° C
5	0° C	10.36° C	11.71° C	9.79° C
6	0° C	10.72° C	11.85° C	10.6° C
7	0° C	10.86° C	11.7° C	10.9° C
8	0° C	10.97° C	11.68° C	10.71° C
9	0° C	11.84° C	11.7° C	10.36° C
10	0° C	11.87° C	11.44° C	10.33° C
11	0° C	11.97° C	11.34° C	10.45° C
12	0° C	12.09° C	11.64° C	10.43° C
13	0° C	11.74° C	12.34° C	10.69° C
14	0° C	11.76° C	12.68° C	11.21° C
15	0° C	11.8° C	12.91° C	11.36° C
16	0° C	12.44° C	13.34° C	11.56° C
17	0° C	12.6° C	13.58° C	12.78° C
18	0° C	13.28° C	14.06° C	12.63° C
19	0° C	15.12° C	13.94° C	12.54° C
20	0° C	14.75° C	13.68° C	13.48° C
21	0° C	14.64° C	13.45° C	13.74° C
22	0° C	14.66° C	13.23° C	13.02° C
23	0° C	14.8° C	12.75° C	12.95° C
24	0° C	13.98° C	13.05° C	13.01° C
25	0° C	15.41° C	13.29° C	13.21° C
26	0° C	15.78° C	13.73° C	13.3° C
27	0° C	15.74° C	14.03° C	13.69° C
28	0° C	15.16° C	13.85° C	14.04° C
29	0° C	14.94° C	13.59° C	14.29° C
30	0° C	14.81° C	13.7° C	13.99° C
31	0° C	14.78° C	13.72° C	13.97° C

Water temperature in July for locations near Gulf of Saint Lawrence

Marystown

Canada, North America

20.05 miles away

Grand Bank

Canada, North America

20.73 miles away

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Gulf of Saint Lawrence comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.

The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.

If you'd like to use any of the information above in the format it is presented, please use the citation tool below.

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