May weather forecast
Seaford, DE

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Weather in May

May in Seaford, Delaware marks the transition from spring to the much-awaited summer season. With the temperature and humidity rising steadily, the month unfolds the city in a warm embrace. The weather is characterized by an increased amount of rainfall, of 0.59" (15mm), providing a cozy feel to the ambiance. Towards the end of this month, signs of the impending summer become evident as days become lengthy and lightsome, paving the way for June’s summer sultriness.

Temperature

With the arrival of May in Seaford, Delaware, the average high-temperature transitions from a comfortable 62.6°F (17°C) in April to a pleasant 71.6°F (22°C). Throughout the May nights, Seaford encounters a low-temperature of 56.8°F (13.8°C).

Humidity

May, August and September, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Seaford, Delaware, during May, the rain falls for 9.9 days and regularly aggregates up to 0.59" (15mm) of precipitation. Throughout the year, in Seaford, there are 95.8 rainfall days, and 8.03" (204mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In May, the average length of the day is 14h and 17min.
On the first day of the month, sunrise is at 6:04 am and sunset at 7:54 pm. On the last day of May, sunrise is at 5:39 am and sunset at 8:20 pm EDT.

Sunshine

The average sunshine in May is 9.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Seaford. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 6 in May suggests the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

What is the average May temperature in Seaford?

May temperatures in Seaford vary between a high-temperature of 71.6°F (22°C) and a low-temperature of 56.8°F (13.8°C).

What is the most humid month in Seaford?

The months with the highest humidity are May, August and September, with an average relative humidity of 80%.

What is the average humidity in May in Seaford?

In May, the average relative humidity in Seaford, Delaware, is 80%.

How many days does it rain in May in Seaford?

In May, the rain falls for 9.9 days. Throughout May, 0.59" (15mm) of precipitation is accumulated.

When it does not snow in Seaford?

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

How many hours of daylight does Seaford have in May?

The average day length in May in Seaford is 14h and 17min.

When are sunrise and sunset in May in Seaford?

In May, on the first day of the month, sunrise is at 6:04 am and sunset at 7:54 pm. On the last day of the month, in Seaford, sunrise is at 5:39 am and sunset at 8:20 pm EDT.

How long on average sun shines in May in Seaford?

In Seaford, the average sunshine duration in May is 9.1h.

When is the highest UV index in Seaford?

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

How high is the UV index in May in Seaford?

In May, the average daily maximum UV index in Seaford, Delaware, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
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 May
Seaford, DE

Average temperature in May - Seaford, DE
  • Average high temperature in May: 71.6°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 May: 56.8°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 May
Seaford, DE

Average pressure in May - Seaford, DE
  • Average pressure in May: 30.02"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 May
Seaford, DE

Average wind speed in May - Seaford, DE
  • Average wind speed in May: 8mph

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 May
Seaford, DE

Average humidity in May - Seaford, DE
  • Average humidity in May: 80%

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 May
Seaford, DE

Average rainfall in May - Seaford, DE
  • Average rainfall in May: 0.59"

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 May
Seaford, DE

Average rainfall days in May - Seaford, DE
  • Average rainfall days in May: 9.9 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 May
Seaford, DE

Average snowfall in May - Seaford, DE
  • Average snowfall in May: 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 May
Seaford, DE

Average snowfall days in May - Seaford, DE
  • Average snowfall days in May: 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 May /
Average sunshine in May
Seaford, DE

Average daylight in May / Average sunshine in May - Seaford, DE
  • Average daylight in May: 14h and 2min

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 May: 9h and 1min

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 May
Seaford, DE

Average sunshine days in May - Seaford, DE
  • Average sunshine days in May: 17.8 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 May
Seaford, DE

Average UV index in May - Seaford, DE
  • Average UV index in May: 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 May
Seaford, DE

Average cloud cover in May - Seaford, DE
  • Average cloud cover in May: 41

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 May
Seaford, DE

Average visibility in May - Seaford, DE
  • 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).

Seaford, Delaware, USA

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