Hatteras
North Carolina, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Hatteras, NC

The last month of the spring, May, is a warm month in Hatteras, North Carolina, with average temperature ranging between min 59°F (15°C) and max 75.2°F (24°C).

Temperature

In Hatteras, the average high-temperature marginally rises, from an agreeable 68°F (20°C) in April, to a moderately hot 75.2°F (24°C). In May, the average low-temperature is 59°F (15°C).

Rainfall

In Hatteras, North Carolina, during 10 rainfall days, 4.1" (104mm) of precipitation is typically accumulated. Throughout the year, in Hatteras, there are 113 rainfall days, and 53.3" (1355mm) of precipitation is accumulated.

Ocean temperature

In Hatteras, the average seawater temperature is 69.8°F (21°C).
Note: Swimming in 69.8°F (21°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

Daylight

The average length of the day in Hatteras, North Carolina, is 14h.

Sunshine

Months with the most sunshine in Hatteras are April through August, with an average of 9h of sunshine.

UV index

In Hatteras, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 9 interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in May in Hatteras?

The average high-temperature, in May, in Hatteras, is 75.2°F (24°C), while the average low-temperature is 59°F (15°C).

How many days does it rain in May in Hatteras?

In May, in Hatteras, the rain falls for 10 days. Throughout May, 4.1" (104mm) of precipitation is accumulated.

How cold is the water 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).

How many hours of daylight does Hatteras have in May?

In May, the average length of the day in Hatteras is 14h.

What are the months with the most sunshine in Hatteras?

Months with the most sunshine in Hatteras, North Carolina, are April through August, with an average of 9h of sunshine.

How long on average sun shines in May in Hatteras?

In Hatteras, the average sunshine in May is 9h.

What is the UV index intensity in May in Hatteras?

The average daily maximum UV index in May in Hatteras is 9. A UV Index of 8 to 10 symbolizes a very high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in May - Hatteras, NC
  • Average high temperature in May: 75°F

Warmest months (with the highest average high temperature) are July and August (86°F).
The month with the lowest average high temperature is January (52°F).

  • Average low temperature in May: 59°F

Months with the highest average low temperature are July and August (72°F).
Coldest months (with the lowest average low temperature) are January and February (36°F).

Average rainfall in May - Hatteras, NC
  • Average rainfall in May: 4.1"

The wettest month (with the highest rainfall) is August (5.9").
The driest month (with the lowest rainfall) is April (3.3").

Average rainfall days in May - Hatteras, NC
  • Average rainfall days in May: 10 days

Months with the highest number of rainy days are July and August (11 days).
Months with the lowest number of rainy days are September, October and November (8 days).

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

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).

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

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

  • Average sunshine in May: 9h

Months with most sunshine are April, May, June, July and August (Average sunshine: 9h).
Months with least sunshine are January and December (Average sunshine: 5).

Average UV index in May - Hatteras, NC
  • Average UV index in May: 9

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January, November and December (UV index 3).