Weather in January
In Saint Clair, Michigan, in January, the average water temperature is 34.7°F (1.5°C). Note: In the case of swimming, the extreme coldness, danger, and life-threatening nature of this situation are apparent. Weather in January »
Weather in February
The months with the coldest seawater in Saint Clair, Michigan, are February and March, with an average ocean temperature of 32.5°F (0.3°C). Note: During the act of swimming, this is a direct threat to life. Weather in February »
Weather in March
The months with the coldest seawater in Saint Clair, Michigan, are February and March, with an average ocean temperature of 32.5°F (0.3°C). Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Weather in March »
Weather in April
In Saint Clair, Michigan, in April, the average water temperature is 37.2°F (2.9°C). Note: Regarding swimming, this is extremely cold, hazardous, and can lead to death. Weather in April »
Weather in May
In May, the average ocean temperature in Saint Clair, Michigan, is 44.6°F (7°C). Note: Being in 44.6°F (7°C) waters at 55.4°F (13°C) is discomforting, but anything below 50°F (10°C) can jeopardize breathing and induce cold shock, factoring in physical endurance. Weather in May »
Weather in June
In Saint Clair, Michigan, the average seawater temperature in June is 60.1°F (15.6°C). Note: Most people do not enjoy swimming in water of 60.1°F (15.6°C). Weather in June »
Weather in July
In Saint Clair, Michigan, in July, the average water temperature is 72.1°F (22.3°C). Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 72.1°F (22.3°C) water. Weather in July »
Weather in August
The month with the warmest seawater in Saint Clair, Michigan, is August, with an average ocean temperature of 73.8°F (23.2°C). Note: Your comfort in 73.8°F (23.2°C) waters hinges on your relationship with the cold, today's sunny disposition, wind patterns, and the air's temperature. Weather in August »
Weather in September
In September, the average ocean temperature in Saint Clair, Michigan, is 69.4°F (20.8°C). Note: For the majority, swimming in water with a temperature of 69.4°F (20.8°C) is not enjoyable. Weather in September »
Weather in October
In October, the average ocean temperature in Saint Clair, Michigan, is 60.1°F (15.6°C). Note: Most people do not find pleasure in swimming when the water temperature is 60.1°F (15.6°C). Weather in October »
Weather in November
In Saint Clair, Michigan, in November, the average water temperature is 49.8°F (9.9°C). Note: Without suitable protection, venturing into 49.8°F (9.9°C) waters cooler than 50°F (10°C) can lead to pronounced cold shock and rapid breaths. Weather in November »
Weather in December
In Saint Clair, Michigan, the average seawater temperature in December is 40.6°F (4.8°C). Note: In the scenario of swimming, this is assessed as life-threatening and highly risky. Weather in December »
[Resources]Frequently asked questions
What months are the ocean coldest in Saint Clair?
February and March, with an average ocean temperature of 32.5°F (0.3°C), are months with the coldest seawater.
When is Daylight Saving Time (DST) in Saint Clair?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Saint Clair, Michigan, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
When are the longest days in Saint Clair?
June has the longest days of the year, with an average of 15h and 18min of daylight.
When is the ocean warmest in Saint Clair?
The month with the warmest seawater is August, with an average ocean temperature of 73.8°F (23.2°C).
What is the month with the shortest days in Saint Clair?
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average sea temperature
Saint Clair, MI
The best month for swimming (with the highest average sea temperature) is August (73.7°F).
The coldest month (with the lowest average sea temperature) is February (32.4°F).
Average daylight
Saint Clair, MI
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
Saint Clair, Michigan, USA
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