Weather in January
Ocean temperature
In Ocean Bluff-Brant Rock, Massachusetts, the average seawater temperature in January is 41.5°F (5.3°C).Note: With the appropriate swimsuit, one can swim in 41.5°F (5.3°C) even if temperatures dip below 50°F (10°C); otherwise, be ready for cold shock and breath issues. A fleeting swim around 55.4°F (13°C) is distressing.
Daylight
In January, the average length of the day is 9h and 31min.On the first day of the month, sunrise is at 7:10 am and sunset at 4:21 pm. On the last day of January, sunrise is at 6:56 am and sunset at 4:55 pm EST.
Updated: Aug 2, 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
How cold is the water in January?
In Ocean Bluff-Brant Rock, the average seawater temperature in January is 41.5°F (5.3°C). Swimming in 41.5°F (5.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.
How many hours of daylight does Ocean Bluff-Brant Rock have in January?
The average day length in January is 9h and 31min.
What time are sunrise and sunset in January?
On the first day of January, sunrise is at 7:10 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:55 pm EST.
Average sea temperature in January
Ocean Bluff-Brant Rock, MA
- Average sea temperature in January: 41.5°F
The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).
Average daylight in January
Ocean Bluff-Brant Rock, MA
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
Ocean Bluff-Brant Rock, Massachusetts, USA
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