Sarnia Sea Temperature in May

Looking to find out what the average sea water temperature in Sarnia is for May? Find out what the lowest, highest, and average water temperatures are for Sarnia over the past 10 years.

Average water temperature in Sarnia for May

The average, high, and low temperatures below should help you if you can swim in the water in Sarnia in May.

7.02° C

(44.63° F)

  • highest: 16.8° C (62.24° F)
  • lowest: 1.97° C (35.55° F)

This water is very cold and can cause pain. We don't recommend you swim in this temperature for anything other than very short swims of 5 to 10 minutes unless you are a very experienced cold water swimmer.

Water temperature range by day in May in Sarnia

The chart below shows the range of low and high temperatures by day for the month of May in Sarnia.

Water temperatures for May in Sarnia in recent years

Day 2024 2023 2022 2021
1 7.3° C 5.55° C 4.62° C 4.84° C
2 8.36° C 5.22° C 4.51° C 4.7° C
3 6.14° C 5.1° C 4.96° C 4.55° C
4 6.44° C 5.82° C 5.11° C 4.81° C
5 6.11° C 6.19° C 5.15° C 5.32° C
6 0° C 6.43° C 5.45° C 6.16° C
7 0° C 6.17° C 6.04° C 6.53° C
8 0° C 5.91° C 6.43° C 6.19° C
9 0° C 7.16° C 6.31° C 6.28° C
10 0° C 7.78° C 6.01° C 6.24° C
11 0° C 7.8° C 5.6° C 6.45° C
12 0° C 8.22° C 5.99° C 6.91° C
13 0° C 8.07° C 6.91° C 6.93° C
14 0° C 8.53° C 6.19° C 7.59° C
15 0° C 8.59° C 6.91° C 8.8° C
16 0° C 8.49° C 8.27° C 9.6° C
17 0° C 8.38° C 8.76° C 11.18° C
18 0° C 8.24° C 8.68° C 11.36° C
19 0° C 8.76° C 8.12° C 11.99° C
20 0° C 9.28° C 8.12° C 12.46° C
21 0° C 9.25° C 8.63° C 13.06° C
22 0° C 9.31° C 8.31° C 13.18° C
23 0° C 9.56° C 8.12° C 13.12° C
24 0° C 9.81° C 8.18° C 11.68° C
25 0° C 9.63° C 8.57° C 9.83° C
26 0° C 9.76° C 7.57° C 9.91° C
27 0° C 9.83° C 8.13° C 9.62° C
28 0° C 9.55° C 9.46° C 9.02° C
29 0° C 10.1° C 9.58° C 9.45° C
30 0° C 11.26° C 8.81° C 10.26° C
31 0° C 12.51° C 10.53° C 10.92° C

Water temperature in May for locations near Sarnia

Port Huron

United States, North America

0.96 miles away

Fort Gratiot Township

United States, North America

5.68 miles away

Brights Grove

Canada, North America

8.44 miles away

Kennedy Acres

Canada, North America

10.38 miles away

Lakeport

United States, North America

10.59 miles away

Highland Glen

Canada, North America

17.30 miles away

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Sarnia 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.

  • "Sarnia Sea Temperature in May". SeaTemperatures.net. Accessed on May 7, 2024. http://seatemperatures.net/north-america/canada/sarnia-may-temperature/.

  • "Sarnia Sea Temperature in May". SeaTemperatures.net, http://seatemperatures.net/north-america/canada/sarnia-may-temperature/. Accessed 7 May, 2024

  • Sarnia Sea Temperature in May. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/canada/sarnia-may-temperature/.