May weather forecast
Eastham, MA

Share

Weather in May

The last month of the spring, May, is a cool month in Eastham, Massachusetts, with temperature in the range of an average low of 49.8°F (9.9°C) and an average high of 54.3°F (12.4°C).

Temperature

The embrace of May brings a minor uplift in the average high-temperature, shifting from a frosty 46.8°F (8.2°C) in April to a fresh 54.3°F (12.4°C). Eastham's May nights experience a subtle temperature dip to an average of 49.8°F (9.9°C).

Humidity

In May, the average relative humidity in Eastham is 84%.

Rainfall

In Eastham, during May, the rain falls for 14.3 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Eastham, Massachusetts, during the entire year, the rain falls for 136.1 days and collects up to 17.24" (438mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Eastham, Massachusetts, the average length of the day in May is 14h and 34min.
On the first day of the month, sunrise is at 5:35 am and sunset at 7:38 pm. On the last day of May, sunrise is at 5:07 am and sunset at 8:08 pm EDT.

Sunshine

In May, the average sunshine in Eastham is 8.4h.

UV index

In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 4 in May interprets into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
[Resources]

Frequently asked questions

What are May temperatures in Eastham?

The high-temperature, in May, in Eastham, records 54.3°F (12.4°C), while the low-temperature is 49.8°F (9.9°C).

What is the average humidity in May in Eastham?

In Eastham, the average relative humidity in May is 84%.

How many days does it rain in May in Eastham?

In Eastham, in May, it is raining for 14.3 days, with typically 1.42" (36mm) of accumulated precipitation.

When it does not snow in Eastham?

May through October are months without snowfall.

Does it snow in Eastham in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in Eastham?

The average day length in May is 14h and 34min.

When are sunrise and sunset in May in Eastham?

On the first day of May in Eastham, Massachusetts, sunrise is at 5:35 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:07 am and sunset at 8:08 pm EDT.

How many hours of sunshine does Eastham have in May?

The average sunshine duration in May in Eastham is 8.4h.

What is the UV index reading in May in Eastham?

In May, the average daily maximum UV index in Eastham, Massachusetts, is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Eastham, MA

Average temperature in May - Eastham, MA
  • Average high temperature in May: 54.3°F

The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in May: 49.8°F

The month with the highest average low temperature is August (67.6°F).
The coldest months (with the lowest average low temperature) are January and February (31.6°F).

[Resources]

Average pressure in May
Eastham, MA

Average pressure in May - Eastham, MA
  • Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

[Resources]

Average wind speed in May
Eastham, MA

Average wind speed in May - Eastham, MA
  • Average wind speed in May: 13.2mph

The windiest month (with the highest average wind speed) is January (18.5mph).
The calmest months (with the lowest average wind speed) are July and August (11.6mph).

[Resources]

Average humidity in May
Eastham, MA

Average humidity in May - Eastham, MA
  • Average humidity in May: 84%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).

[Resources]

Average rainfall in May
Eastham, MA

Average rainfall in May - Eastham, MA
  • Average rainfall in May: 1.42"

The wettest month (with the highest rainfall) is October (2.17").
The driest months (with the least rainfall) are February and November (1.18").

[Resources]

Average rainfall days in May
Eastham, MA

Average rainfall days in May - Eastham, MA
  • Average rainfall days in May: 14.3 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (7.3 days).

[Resources]

Average snowfall in May
Eastham, MA

Average snowfall in May - Eastham, MA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

[Resources]

Average snowfall days in May
Eastham, MA

Average snowfall days in May - Eastham, MA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

Average daylight in May /
Average sunshine in May
Eastham, MA

Average daylight in May / Average sunshine in May - Eastham, MA
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

[Resources]

Average sunshine days in May
Eastham, MA

Average sunshine days in May - Eastham, MA
  • Average sunshine days in May: 15 days

The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is December (13.1 days).

[Resources]

Average UV index in May
Eastham, MA

Average UV index in May - Eastham, MA
  • Average UV index in May: 4

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

[Resources]

Average cloud cover in May
Eastham, MA

Average cloud cover in May - Eastham, MA
  • Average cloud cover in May: 45

The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).

[Resources]

Average visibility in May
Eastham, MA

Average visibility in May - Eastham, MA
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

[Resources]

Eastham, Massachusetts, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location