July weather forecast
Topsail Beach, NC

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Weather in July

Hot and humid, July is the heart of summer in Topsail Beach with temperatures often peaking at 86.5°F (30.3°C). This month witnesses the highest sea temperature, reaching up to 82°F (27.8°C). With high humidity levels, thunderstorms become a frequent occurrence. The UV index persists at 7, indicating that sun safety remains a top priority. As the daylight duration slightly recedes from the June peak, locals and tourists continue to bask in the summer's warmth.

Temperature

The warmest period is July, when temperatures fluctuate between an average high of 86.5°F (30.3°C) and a low of 77°F (25°C).

Heat index

The heat index in July is calculated to be a sweltering 98.6°F (37°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In July, the average relative humidity in Topsail Beach is 76%.

Rainfall

In Topsail Beach, during July, the rain falls for 17.6 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Topsail Beach, during the entire year, the rain falls for 150.4 days and collects up to 20.79" (528mm) of precipitation.

Snowfall

In Topsail Beach, North Carolina, snow does not fall in March through November.

Ocean temperature

In Topsail Beach, in July, the average water temperature is 82°F (27.8°C).
Note: In water temperatures ranging between 77°F (25°C) and 84.2°F (29°C), activities such as swimming and diving become highly pleasurable for long durations.

Daylight

In July, the average length of the day is 14h and 11min.
On the first day of July, sunrise is at 6:02 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:12 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 11h of sunshine.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 during July translates into the following directions:
Guard oneself from overexposure. Defence against sun injury is vital. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be on guard! The reflective nature of sand and water boosts UV exposure.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

July, marked by an average high-temperature of 86.5°F (30.3°C) and a low-temperature of 77°F (25°C), is the warmest month.

How hot is it in July?

In Topsail Beach, 86.5°F (30.3°C) is the average high-temperature and 77°F (25°C) is the average low-temperature during July. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in July is calculated to be 98.6°F (37°C).

What is the average humidity in July in Topsail Beach?

In July, the average relative humidity is 76%.

How much does it rain in July?

In Topsail Beach, in July, it is raining for 17.6 days, with typically 1.85" (47mm) of accumulated precipitation.

When it does not snow in Topsail Beach?

In Topsail Beach, snow does not fall in March through November.

How warm is the water in July?

In July, the average ocean temperature is 82°F (27.8°C). 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.

What is the average length of the day in July?

The average day length in July is 14h and 11min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 6:02 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:12 pm EDT.

What month has the most sunshine?

With an average of 11h of sunshine, July has the most sunshine of the year.

How many hours of sunshine does Topsail Beach have in July?

In July, the average sunshine duration in Topsail Beach is 11h.

When is the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 7.

What is the UV index reading in July?

In July, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
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 July
Topsail Beach, NC

Average temperature in July - Topsail Beach, NC
  • Average high temperature in July: 86.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (54.5°F).

  • Average low temperature in July: 77°F

The month with the highest average low temperature is July (77°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

Average pressure in July
Topsail Beach, NC

Average pressure in July - Topsail Beach, NC
  • Average pressure in July: 29.99"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in July
Topsail Beach, NC

Average wind speed in July - Topsail Beach, NC
  • Average wind speed in July: 9.4mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).

Average humidity in July
Topsail Beach, NC

Average humidity in July - Topsail Beach, NC
  • Average humidity in July: 76%

The months with the highest relative humidity are August and December (77%).
The months with the lowest relative humidity are January and March (73%).

Average rainfall in July
Topsail Beach, NC

Average rainfall in July - Topsail Beach, NC
  • Average rainfall in July: 1.85"

The wettest month (with the highest rainfall) is September (2.91").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in July
Topsail Beach, NC

Average rainfall days in July - Topsail Beach, NC
  • Average rainfall days in July: 17.6 days

The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is November (8.2 days).

Average snowfall in July
Topsail Beach, NC

Average snowfall in July - Topsail Beach, NC
  • Average snowfall in July: 0"

The months with the highest snowfall are January, February and December (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in July
Topsail Beach, NC

Average snowfall days in July - Topsail Beach, NC
  • Average snowfall days in July: 0 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in July
Topsail Beach, NC

Average sea temperature in July - Topsail Beach, NC
  • Average sea temperature in July: 82°F

The best month for swimming (with the highest average sea temperature) is August (82.8°F).
The coldest month (with the lowest average sea temperature) is February (57.5°F).

Average daylight in July /
Average sunshine in July
Topsail Beach, NC

Average daylight in July / Average sunshine in July - Topsail Beach, NC
  • Average daylight in July: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in July: 11h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in July
Topsail Beach, NC

Average sunshine days in July - Topsail Beach, NC
  • Average sunshine days in July: 8.9 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (8.2 days).

Average UV index in July
Topsail Beach, NC

Average UV index in July - Topsail Beach, NC
  • Average UV index in July: 7

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).

Average cloud cover in July
Topsail Beach, NC

Average cloud cover in July - Topsail Beach, NC
  • Average cloud cover in July: 26

The months with the most cloud cover are February and December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 26).

Average visibility in July
Topsail Beach, NC

Average visibility in July - Topsail Beach, NC
  • Average visibility in July: 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).

Topsail Beach, North Carolina, USA

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