May weather forecast and climate
Nantucket, MA

What is the temperature in May in Nantucket?

In Nantucket, in May, the average high-temperature is 59.7°F (15.4°C), and the average low-temperature is 46°F (7.8°C).

How much does it rain in Nantucket in May?

In Nantucket, Massachusetts, in May, during 10 rainfall days, typically 3.4" (86.9mm) of precipitation is accumulated.

Does it snow in Nantucket in May?

In May, in Nantucket, it doesn't snow. April is the latest month when it typically snows.
Average temperature in May - Nantucket, MA
  • Average high temperature in May: 59.8°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 May: 46.1°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 May - Nantucket, MA
  • Average rainfall in May: 3.4"

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 May - Nantucket, MA
  • Average rainfall days in May: 10 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 May - Nantucket, MA
  • Average snowfall in May: 0"

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 May - Nantucket, MA
  • Average sea temperature in May: 49.9°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 May / Average sunshine in May - Nantucket, MA
  • 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).

  • Average sunshine in May: 8h

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 May - Nantucket, MA
  • Average UV index in May: 7

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).

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