June weather forecast
Wilmington, DE

Bright neon lights light up the Central Business District of Wilmington, Delaware, with a scenic reflection in the Christian River
Bright neon lights light up the Central Business District of Wilmington, Delaware, with a scenic reflection in the Christian River

Weather in June

June, the first month of the summer in Wilmington, is a moderately hot month, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 62.8°F (17.1°C).

Temperature

In June, the average high-temperature marginally rises from an agreeable 71.6°F (22°C) in May to a warm 79.5°F (26.4°C). In Wilmington, Delaware, in June, the average low-temperature is 62.8°F (17.1°C).

Humidity

The average relative humidity in June in Wilmington is 75%.

Rainfall

In June, in Wilmington, Delaware, the rain falls for 17.5 days. Throughout June, 3.07" (78mm) of precipitation is accumulated. In Wilmington, during the entire year, the rain falls for 168.9 days and collects up to 35.55" (903mm) of precipitation.

Snowfall

In Wilmington, snow does not fall through September.

Ocean temperature

In June, the average ocean temperature in Wilmington is 60.8°F (16°C).
Note: For swimming, a surface water temperature of 60.8°F (16°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).

Daylight

The month with the longest days is June, with an average of 14h and 56min of daylight.
On the first day of June, sunrise is at 5:35 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:34 pm EDT.

Sunshine

The average sunshine in June is 10h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 in June transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in June in Wilmington?

The average high-temperature, in June, in Wilmington, Delaware, is 79.5°F (26.4°C), while the average low-temperature is 62.8°F (17.1°C).

What is the average humidity in June in Wilmington?

In Wilmington, the average relative humidity in June is 75%.

How many days does it rain in June in Wilmington?

In June, the rain falls for 17.5 days. Throughout June, 3.07" (78mm) of precipitation is accumulated.

When it does not snow in Wilmington?

In Wilmington, snow does not fall in June through September.

Does it snow in Wilmington in June?

In June, in Wilmington, Delaware, it doesn't snow. May is the latest month when it typically snows.

What is the ocean temperature in June in Wilmington?

In June, the average ocean temperature in Wilmington is 60.8°F (16°C). For most, swimming in 60.8°F (16°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

When are the longest days in Wilmington?

With an average of 14h and 56min of daylight, June has the longest days of the year in Wilmington, Delaware.

How many hours of daylight does Wilmington have in June?

In June, the average day length in Wilmington is 14h and 56min.

When is the sunrise / sunset in June in Wilmington?

In June, on the first day of the month, sunrise is at 5:35 am and sunset at 8:24 pm. On the last day of the month, in Wilmington, sunrise is at 5:37 am and sunset at 8:34 pm EDT.

How many hours of sunshine does Wilmington have in June?

In June, the average sunshine duration in Wilmington is 10h.

When is the highest UV index in Wilmington?

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

How high is the UV index in June in Wilmington?

In June, the average daily maximum UV index in Wilmington, Delaware, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Wilmington, DE

Average temperature in June - Wilmington, DE
  • Average high temperature in June: 79.5°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in June: 62.8°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

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Average pressure in June
Wilmington, DE

Average pressure in June - Wilmington, DE
  • Average pressure in June: 29.94"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).

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Average wind speed in June
Wilmington, DE

Average wind speed in June - Wilmington, DE
  • Average wind speed in June: 6.3mph

The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in June
Wilmington, DE

Average humidity in June - Wilmington, DE
  • Average humidity in June: 75%

The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in June
Wilmington, DE

Average rainfall in June - Wilmington, DE
  • Average rainfall in June: 3.07"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (2.36").

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Average rainfall days in June
Wilmington, DE

Average rainfall days in June - Wilmington, DE
  • Average rainfall days in June: 17.5 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in June
Wilmington, DE

Average snowfall in June - Wilmington, DE
  • Average snowfall in June: 0"

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in June
Wilmington, DE

Average snowfall days in June - Wilmington, DE
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in June
Wilmington, DE

Average sea temperature in June - Wilmington, DE
  • Average sea temperature in June: 61°F

The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is February (34°F).

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Average daylight in June /
Average sunshine in June
Wilmington, DE

Average daylight in June / Average sunshine in June - Wilmington, DE
  • Average daylight in June: 14h and 56min

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

  • Average sunshine in June: 10h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in June
Wilmington, DE

Average sunshine days in June - Wilmington, DE
  • Average sunshine days in June: 9.9 days

The month with the most sunshine days is November (18.6 days).
The months with the least sunshine days are May and July (9.8 days).

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Average UV index in June
Wilmington, DE

Average UV index in June - Wilmington, DE
  • Average UV index in June: 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, February, November and December (UV index 2).

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Average cloud cover in June
Wilmington, DE

Average cloud cover in June - Wilmington, DE
  • Average cloud cover in June: 36

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in June
Wilmington, DE

Average visibility in June - Wilmington, DE
  • Average visibility in June: 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).

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