July weather forecast
Seaford, DE

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Weather in July

July, the crown of summer in Seaford, Delaware, tops the year with the highest temperatures. The days are filled with brilliant sunlight and a sultry heat prevails. Prolonged hours of sunlight can be seen along with a significant rise in temperature up to 84.4°F (29.1°C). As the hottest month, it paves the way for a slight retreat in heat as August approaches. The landscape dons a vivid, colorful appearance, with flowering plants at their peak and wildlife in full swing.

Temperature

In Seaford, July records the highest average temperatures, peaking at 84.4°F (29.1°C) and reaching a low of 69.8°F (21°C).

Heat index

The heat index for July is estimated at a torrid 95°F (35°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Remember that heat index calculations are made for conditions in the shade with light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in July in Seaford is 78%.

Rainfall

The months with the most rainfall in Seaford are July and August, with an average 1.06" (27mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in July in Seaford is 14h and 33min.
On the first day of the month, sunrise is at 5:41 am and sunset at 8:30 pm. On the last day of July, sunrise is at 6:03 am and sunset at 8:13 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.8h of sunshine.

UV index

The months with the highest UV index in Seaford, Delaware, are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In July, a regular UV index of 6 translates into these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Feb 10, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What part of the year is the hottest in Seaford?

July, with average temperatures reaching a high of 84.4°F (29.1°C) and a low of 69.8°F (21°C), is the warmest month in Seaford.

Is it hot in Seaford during July?

In Seaford, in July, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 69.8°F (21°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 95°F (35°C).

What is the average humidity in July in Seaford?

The average relative humidity in July is 78%.

What is the wettest month in Seaford?

The months with the most rainfall are July and August, with an average 1.06" (27mm) of precipitation.

How many days does it rain in July in Seaford?

In Seaford, in July, during 12 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

When it does not snow in Seaford?

In Seaford, snow does not fall in April through October.

How many hours of daylight does Seaford have in July?

The average day length in July in Seaford, Delaware, is 14h and 33min.

What time are sunrise and sunset in July in Seaford?

On the first day of July in Seaford, sunrise is at 5:41 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:13 pm EDT.

What month has the most sunshine in Seaford?

July has the most sunshine of the year in Seaford, Delaware, with an average of 10.8h of sunshine.

How long on average sun shines in July in Seaford?

In Seaford, the average sunshine duration in July is 10.8h.

What are the months with the highest UV index in Seaford?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in July in Seaford?

In July, the average daily maximum UV index in Seaford, Delaware, is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to the Sun's 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
Seaford, DE

Average temperature in July - Seaford, DE
  • Average high temperature in July: 84.4°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in July: 69.8°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

Average pressure in July
Seaford, DE

Average pressure in July - Seaford, DE
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in July
Seaford, DE

Average wind speed in July - Seaford, DE
  • Average wind speed in July: 6.3mph

The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in July
Seaford, DE

Average humidity in July - Seaford, DE
  • Average humidity in July: 78%

The months with the highest relative humidity are May, August and September (80%).
The month with the lowest relative humidity is January (74%).

Average rainfall in July
Seaford, DE

Average rainfall in July - Seaford, DE
  • Average rainfall in July: 1.06"

The wettest months (with the highest rainfall) are July and August (1.06").
The driest month (with the least rainfall) is September (0.39").

Average rainfall days in July
Seaford, DE

Average rainfall days in July - Seaford, DE
  • Average rainfall days in July: 12 days

The month with the highest number of rainy days is July (12 days).
The month with the least rainy days is November (4.9 days).

Average snowfall in July
Seaford, DE

Average snowfall in July - Seaford, DE
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Seaford, DE

Average snowfall days in July - Seaford, DE
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Seaford, DE

Average daylight in July / Average sunshine in July - Seaford, DE
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in July: 10h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in July
Seaford, DE

Average sunshine days in July - Seaford, DE
  • Average sunshine days in July: 15.7 days

The month with the most sunshine days is November (23.9 days).
The month with the least sunshine days is July (15.7 days).

Average UV index in July
Seaford, DE

Average UV index in July - Seaford, DE
  • Average UV index in July: 6

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

Average cloud cover in July
Seaford, DE

Average cloud cover in July - Seaford, DE
  • Average cloud cover in July: 28

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in July
Seaford, DE

Average visibility in July - Seaford, DE
  • 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).

Seaford, Delaware, USA

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