Weather in January
Ocean temperature
In January, the average ocean temperature in Cobb Island, Maryland, is 48.9°F (9.4°C).Note: Caution: 48.9°F (9.4°C) temperatures below 50°F (10°C) during swimming can result in intense cold shock and quickened breathing.
Daylight
The average length of the day in January is 9h and 52min.On the first day of the month, sunrise is at 7:24 am and sunset at 4:57 pm. On the last day of January, sunrise is at 7:13 am and sunset at 5:28 pm EST.
Updated: Jul 24, 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
What is the water temperature in January?
In Cobb Island, Maryland, in January, the average water temperature is 48.9°F (9.4°C). Swimming in 48.9°F (9.4°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.
What is the average length of the day in January?
In January, the average day length is 9h and 52min.
When are sunrise and sunset in January?
On the first day of January, sunrise is at 7:24 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:28 pm EST.
Average sea temperature in January
Cobb Island, MD
- Average sea temperature in January: 49°F
The best month for swimming (with the highest average sea temperature) is August (78.4°F).
The coldest month (with the lowest average sea temperature) is February (47.1°F).
Average daylight in January
Cobb Island, MD
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
Cobb Island, Maryland, USA
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