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

March weather forecast and climate
Stony Brook, NY

Ocean temperature

In Stony Brook, New York, in Marzo, the average water temperature is 40.5°F (4.7°C).
Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

Daylight

In Marzo, the average length of the day is 12h.

How cold is the water in Marzo in Stony Brook?

In Stony Brook, New York, in Marzo, the average water temperature is 40.5°F (4.7°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

What is the average length of the day in Marzo in Stony Brook?

In Marzo, the average length of the day in Stony Brook, New York, is 12h.
Average sea temperature in March - Stony Brook, NY
  • Average sea temperature in March: 40.4°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 March - Stony Brook, NY
  • Average daylight in March: 12h

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