May weather forecastOcean Bluff-Brant Rock, MA
May
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
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.
In May, the average day length is 14h and 35min.
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 36min
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).
