January weather forecastSaint Clair, MI
January
Weather in January
Ocean temperature
In January, the average ocean temperature in Saint Clair, Michigan, is 34.7°F (1.5°C).Note: In the sphere of swimming, this is extremely cold and poses life-endangering hazards. Hypothermia can occur almost instantly in the absence of insulated waterproof wear.
Daylight
In Saint Clair, Michigan, the average length of the day in January is 9h and 28min.On the first day of the month, sunrise is at 8:00 am and sunset at 5:06 pm. On the last day of January, sunrise is at 7:45 am and sunset at 5:40 pm EST.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Saint Clair, the average seawater temperature in January is 34.7°F (1.5°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.
The average day length in January is 9h and 28min.
In January, on the first day of the month, sunrise is at 8:00 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:40 pm EST.
Average sea temperature in January
Saint Clair, MI
- Average sea temperature in January: 34.7°F
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 in January
Saint Clair, MI
- Average daylight in January: 9h and 30min
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).





