Weather in May
Ocean temperature
In Ocean Bluff-Brant Rock, Massachusetts, in May, the average water temperature is 49.1°F (9.5°C).Note: Dipping into 49.1°F (9.5°C) below 50°F (10°C) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 55.4°F (13°C) can be jarring.
Daylight
In May, the average length of the day is 14h and 35min.On the first day of the month, sunrise is at 5:37 am and sunset at 7:42 pm. On the last day of May, in Ocean Bluff-Brant Rock, sunrise is at 5:09 am and sunset at 8:11 pm EDT.
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 May in Ocean Bluff-Brant Rock?
In May, the average ocean temperature is 49.1°F (9.5°C). Swimming in 49.1°F (9.5°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.
How many hours of daylight does Ocean Bluff-Brant Rock have in May?
In May, the average day length is 14h and 35min.
What time are sunrise and sunset in May?
In May, on the first day of the month, sunrise is at 5:37 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 5:09 am and sunset at 8:11 pm EDT.
Average sea temperature in May
Ocean Bluff-Brant Rock, MA
- Average sea temperature in May: 49°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 May
Ocean Bluff-Brant Rock, MA
- Average daylight in May: 14h and 4min
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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