May weather forecast
Hatteras, NC

Weather in May

May, the last month of the spring in Hatteras, is an agreeable month, with an average temperature varying between 66.7°F (19.3°C) and 71.6°F (22°C).

Temperature

In May, the average high-temperature marginally rises from an enjoyable 64.8°F (18.2°C) in April to an agreeable 71.6°F (22°C). In Hatteras, North Carolina, the average low-temperature is 66.7°F (19.3°C).

Humidity

The months with the highest humidity are May through July, with an average relative humidity of 79%.

Rainfall

In Hatteras, in May, it is raining for 8.5 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, there are 100.9 rainfall days, and 8.58" (218mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Hatteras.

Ocean temperature

In Hatteras, North Carolina, the average seawater temperature in May is 69.8°F (21°C).
Note: For swimming, a surface water temperature of 69.8°F (21°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

In Hatteras, the average length of the day in May is 14h and 2min.
On the first day of the month, sunrise is at 6:11 am and sunset at 7:48 pm. On the last day of May, in Hatteras, sunrise is at 5:49 am and sunset at 8:11 pm EDT.

Sunshine

In May, the average sunshine in Hatteras is 10.1h.

UV index

In Hatteras, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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.
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FAQ

What is the most humid month in Hatteras?

May through July, with an average relative humidity of 79%, are most humid months.

What is the average humidity in May in Hatteras?

The average relative humidity in May in Hatteras is 79%.

How many days does it rain in May in Hatteras?

In May, in Hatteras, the rain falls for 8.5 days. Throughout May, 0.83" (21mm) of precipitation is accumulated.

When it does not snow in Hatteras?

April through November are months without snowfall.

What is the ocean temperature in May in Hatteras?

In Hatteras, North Carolina, in May, the average water temperature is 69.8°F (21°C). For swimming, a surface water temperature of 69.8°F (21°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

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

In Hatteras, North Carolina, the average day length in May is 14h and 2min.

When is the sunrise / sunset in May in Hatteras?

On the first day of May in Hatteras, sunrise is at 6:11 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:11 pm EDT.

How many hours of sunshine does Hatteras have in May?

The average sunshine duration in May in Hatteras, North Carolina, is 10.1h.

What is the UV index reading in May in Hatteras?

The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Hatteras, NC

Average temperature in May - Hatteras, NC
  • Average high temperature in May: 71.6°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (54.5°F).

  • Average low temperature in May: 66.7°F

The month with the highest average low temperature is July (78.4°F).
The coldest month (with the lowest average low temperature) is January (46°F).

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Average pressure in May
Hatteras, NC

Average pressure in May - Hatteras, NC
  • Average pressure in May: 30.04"Hg

The months with the highest atmospheric pressure are January, November and December (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in May
Hatteras, NC

Average wind speed in May - Hatteras, NC
  • Average wind speed in May: 13.9mph

The windiest month (with the highest average wind speed) is March (17mph).
The calmest month (with the lowest average wind speed) is August (12mph).

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Average humidity in May
Hatteras, NC

Average humidity in May - Hatteras, NC
  • Average humidity in May: 79%

The months with the highest relative humidity are May, June and July (79%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in May
Hatteras, NC

Average rainfall in May - Hatteras, NC
  • Average rainfall in May: 0.83"

The wettest month (with the highest rainfall) is August (1.06").
The driest month (with the least rainfall) is January (0.31").

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Average rainfall days in May
Hatteras, NC

Average rainfall days in May - Hatteras, NC
  • Average rainfall days in May: 8.5 days

The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is February (5.6 days).

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Average snowfall days in May
Hatteras, NC

Average snowfall days in May - Hatteras, NC
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January, February, March and December (0.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average sea temperature in May
Hatteras, NC

Average sea temperature in May - Hatteras, NC
  • Average sea temperature in May: 70°F

The best months for swimming (with the highest average sea temperature) are July and August (81°F).
The coldest month (with the lowest average sea temperature) is February (61°F).

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Average daylight in May /
Average sunshine in May
Hatteras, NC

Average daylight in May / Average sunshine in May - Hatteras, NC
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 29min).
The month with the shortest days is December (Average daylight: 9h and 50min).

  • Average sunshine in May: 10h and 6min

The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

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Average sunshine days in May
Hatteras, NC

Average sunshine days in May - Hatteras, NC
  • Average sunshine days in May: 16.5 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in May
Hatteras, NC

Average UV index in May - Hatteras, NC
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

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Average cloud cover in May
Hatteras, NC

Average cloud cover in May - Hatteras, NC
  • Average cloud cover in May: 32

The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 26).

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Average visibility in May
Hatteras, NC

Average visibility in May - Hatteras, NC
  • 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).

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