Stony Brook
New York, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Stony Brook, NY

Ocean temperature

In Stony Brook, New York, in Mayo, the average water temperature is 53.4°F (11.9°C).
Note: Swimming in 53.4°F (11.9°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.

Daylight

The average length of the day in Mayo is 14.5h.

How cold is the water in Mayo in Stony Brook?

In Stony Brook, New York, the average seawater temperature in Mayo is 53.4°F (11.9°C). Swimming in 53.4°F (11.9°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 Stony Brook have in Mayo?

The average length of the day in Mayo in Stony Brook is 14.5h.
Average sea temperature in May - Stony Brook, NY
  • Average sea temperature in May: 53.4°F

The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

Average daylight in May - Stony Brook, NY
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).