Chelsea
Massachusetts, USA
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Chelsea, MA

Ocean temperature

In March, the average ocean temperature in Chelsea, Massachusetts, is 38.3°F (3.5°C).
Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

Daylight

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

What is the water temperature in March in Chelsea?

In Chelsea, Massachusetts, in March, the average water temperature is 38.3°F (3.5°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 March in Chelsea?

In March, the average length of the day in Chelsea, Massachusetts, is 12h.
Average sea temperature in March - Chelsea, MA
  • Average sea temperature in March: 38.4°F

The best month for swimming (with the highest average sea temperature) is August (67.9°F).
The coldest month (with the lowest average sea temperature) is February (38.1°F).

Average daylight in March - Chelsea, MA
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.1h).