Monthly weather forecast and climate
Cape Hatteras National Seashore, NC

The best time to visit Cape Hatteras National Seashore

The best months for a swim in Cape Hatteras National Seashore, North Carolina, are June through September, with a perfect temperature - varying between 77°F (25°C) and 84.2°F (29°C), and scarce rainfall.

Weather in January

In January, the average ocean temperature in Cape Hatteras National Seashore, North Carolina, is 58.8°F (14.9°C). Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in January »

Weather in February

February is the month with the coldest seawater in Cape Hatteras National Seashore, North Carolina, with an average ocean temperature of 57.2°F (14°C). Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in February »

Weather in March

In Cape Hatteras National Seashore, North Carolina, the average seawater temperature in March is 59.5°F (15.3°C). Note: For most, swimming in 59.5°F (15.3°C) is not an enjoyable activity. Weather in March »

Weather in April

In April, the average ocean temperature in Cape Hatteras National Seashore, North Carolina, is 64.9°F (18.3°C). Note: For swimming, a surface water temperature of 64.9°F (18.3°C) is not enjoyable for the majority. Weather in April »

Weather in May

In Cape Hatteras National Seashore, North Carolina, the average seawater temperature in May is 71.6°F (22°C). Note: For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. Weather in May »

Weather in June

The perfect water temperature of 78.3°F (25.7°C) makes June a great period for swimming and other water activities in Cape Hatteras National Seashore, North Carolina. In June, the average ocean temperature is 78.3°F (25.7°C). Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. Weather in June »

Weather in July

The perfect water temperature of 81.1°F (27.3°C) makes July a great period for swimming and other water activities in Cape Hatteras National Seashore, North Carolina. In July, the average ocean temperature is 81.1°F (27.3°C). Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable. Weather in July »

Weather in August

The perfect water temperature of 82.9°F (28.3°C) makes August a great period for swimming and other water activities in Cape Hatteras National Seashore, North Carolina. August is the month with the warmest seawater, with an average ocean temperature of 82.9°F (28.3°C). Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods. Weather in August »

Weather in September

The perfect water temperature of 79.9°F (26.6°C) makes September a great period for swimming and other water activities in Cape Hatteras National Seashore, North Carolina. In Cape Hatteras National Seashore, the average water temperature is 79.9°F (26.6°C). Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. Weather in September »

Weather in October

In Cape Hatteras National Seashore, North Carolina, in October, the average water temperature is 74.7°F (23.7°C). Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 74.7°F (23.7°C) water. Weather in October »

Weather in November

In November, the average ocean temperature in Cape Hatteras National Seashore, North Carolina, is 66.7°F (19.3°C). Note: For most, swimming in 66.7°F (19.3°C) is not an enjoyable activity. Weather in November »

Weather in December

In Cape Hatteras National Seashore, North Carolina, in December, the average water temperature is 65.5°F (18.6°C). Note: For most, swimming in 65.5°F (18.6°C) is not an enjoyable activity. Weather in December »
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FAQ

What is the month with the coldest ocean in Cape Hatteras National Seashore?

February is the month with the coldest seawater, with an average ocean temperature of 57.2°F (14°C).

When are the longest days in Cape Hatteras National Seashore?

With an average of 14.5h of daylight, June has the longest days of the year in Cape Hatteras National Seashore.

When is the ocean warmest in Cape Hatteras National Seashore?

The month with the warmest seawater is August, with an average ocean temperature of 82.9°F (28.3°C).

What is the month with the shortest days in Cape Hatteras National Seashore?

With an average of 9.8h of daylight, December has the shortest days of the year in Cape Hatteras National Seashore.

Average sea temperature
Cape Hatteras National Seashore, NC

Average sea temperature - Cape Hatteras National Seashore, NC

The best month for swimming (with the highest average sea temperature) is August (82.9°F).
The coldest month (with the lowest average sea temperature) is February (57.2°F).

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Average daylight
Cape Hatteras National Seashore, NC

Average daylight - Cape Hatteras National Seashore, NC

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

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