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

March weather forecast and climate
Nantucket, MA

Beautiful homes built on the water overlooking the boats on the water below, in Nantucket, Massachusetts, with stunning pink, sun rays
Beautiful homes built on the water overlooking the boats on the water below, in Nantucket, Massachusetts, with stunning pink, sun rays
March, the first month of the spring, in Nantucket, is a chilly month, with average temperature fluctuating between 44.2°F (6.8°C) and 30.9°F (-0.6°C).

Temperature

In March, the average high-temperature is relatively the same as in February - a frosty 44.2°F (6.8°C). In Nantucket, the average low-temperature is 30.9°F (-0.6°C).

Rainfall

In Nantucket, during 11 rainfall days, 4.3" (108mm) of precipitation is typically accumulated. In Nantucket, during the entire year, the rain falls for 120 days and collects up to 44.4" (1128.3mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December.

Ocean temperature

In Nantucket, Massachusetts, the average water temperature is 38.5°F (3.6°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.

Daylight

The average length of the day in Nantucket is 12h.

Sunshine

In Nantucket, the average sunshine is 7h.

UV index

In Nantucket, the average daily maximum UV index in March is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for average individuals.
In March, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in March in Nantucket?

In March, in Nantucket, the average high-temperature is 44.2°F (6.8°C), and the average low-temperature is 30.9°F (-0.6°C).

How many days does it rain in March in Nantucket?

In March, in Nantucket, Massachusetts, the rain falls for 11 days. Throughout March, 4.3" (108mm) of precipitation is accumulated.

How much does it snow in Nantucket in March?

During March, Nantucket regularly aggregates up to 6.6" (167.6mm) of snow.

What is the water temperature in March in Nantucket?

In March, the average ocean temperature in Nantucket is 38.5°F (3.6°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.

How many hours of daylight does Nantucket have in March?

The average length of the day in March in Nantucket, Massachusetts, is 12h.

How long on average sun shines in March in Nantucket?

The average sunshine in March in Nantucket is 7h.

What is the UV index intensity in March in Nantucket?

In Nantucket, Massachusetts, the average daily maximum UV index in March is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.
Average temperature in March - Nantucket, MA
  • Average high temperature in March: 44.3°F

The warmest month (with the highest average high temperature) is July (75.1°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in March: 30.9°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (25.1°F).

Average rainfall in March - Nantucket, MA
  • Average rainfall in March: 4.3"

The wettest month (with the highest rainfall) is November (4.4").
The driest month (with the lowest rainfall) is February (2.7").

Average rainfall days in March - Nantucket, MA
  • Average rainfall days in March: 11 days

The month with the highest number of rainy days is December (13 days).
The month with the lowest number of rainy days is July (7 days).

Average snowfall in March - Nantucket, MA
  • Average snowfall in March: 6.6"

The month with the highest snowfall is February (8.5").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average sea temperature in March - Nantucket, MA
  • Average sea temperature in March: 38.6°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 February (37.9°F).

Average daylight in March / Average sunshine in March - Nantucket, MA
  • 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).

  • Average sunshine in March: 7h

The month with most sunshine is June (Average sunshine: 9h).
Months with least sunshine are January, November and December (Average sunshine: 5).

Average UV index in March - Nantucket, MA
  • Average UV index in March: 4

Months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 1).