September weather forecast
Ocean View, DE

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Weather in September

September in Ocean View, Delaware signals the onset of fall with the average high temperature dropping to a comfortable 73.9°F (23.3°C). Despite this, many consider September to be an extension of summer, with plenty of sunshine and lingering warm temperatures. As the transition month between summer and fall, September comprises varying weather conditions, including decreases in daylight hours. The decline in wind speeds and the lessening humidity provide a gentle introduction to the cooler autumn months ahead.

Temperature

With the onset of September in Ocean View, Delaware, a modest change to a still moderately hot 73.9°F (23.3°C) from August's 79.2°F (26.2°C) is noted in high-temperature. September notes an average low temperature of 68.9°F (20.5°C), subtly down from the daytime highs.

Humidity

The average relative humidity in September in Ocean View is 77%.

Rainfall

In Ocean View, during September, the rain falls for 13.3 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Ocean View, Delaware, during the entire year, the rain falls for 147.9 days and collects up to 23.58" (599mm) of precipitation.

Snowfall

April through November are months without snowfall in Ocean View.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:44 pm EDT.

Sunshine

In Ocean View, Delaware, the average sunshine in September is 9.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Take precautions - Protection against sunburn is recommended. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What are the temperatures in Ocean View in September?

In Ocean View, in September, the average high-temperature is 73.9°F (23.3°C), and the average low-temperature is 68.9°F (20.5°C).

What is the average humidity in September in Ocean View?

In Ocean View, Delaware, the average relative humidity in September is 77%.

How many days does it rain in September in Ocean View?

In September, in Ocean View, the rain falls for 13.3 days. Throughout September, 2.09" (53mm) of precipitation is accumulated.

When it does not snow in Ocean View?

In Ocean View, Delaware, snow does not fall in April through November.

What is the average length of the day in September in Ocean View?

The average day length in September is 12h and 25min.

When is the sunrise / sunset in September in Ocean View?

In September, on the first day of the month, sunrise is at 6:30 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:44 pm EDT.

How many hours of sunshine does Ocean View have in September?

The average sunshine duration in September is 9.2h.

What is the UV index reading in September in Ocean View?

In Ocean View, Delaware, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASeptemberOND
Aug
September
Oct
Average high temperature
79.2°F 26.2°C
73.9°F 23.3°C
65.7°F 18.7°C
Average low temperature
73.2°F 22.9°C
68.9°F 20.5°C
58.8°F 14.9°C
Average pressure
29.98" 761mmHg
30.04" 763mmHg
30.03" 763mmHg
Average wind speed
9.3mph 15km/h
11.3mph 18.2km/h
12.9mph 20.8km/h
Average max. wind speed
10.2mph 16.4km/h
12.3mph 19.8km/h
14.2mph 22.9km/h
Average wind speed gusts
14.5mph 23.3km/h
17.1mph 27.5km/h
19.1mph 30.7km/h
Average humidity
78%
77%
75%
Average rainfall
2.8" 71mm
2.09" 53mm
2.01" 51mm
Average rainfall days
15.3
13.3
11.5
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0
0
0
Average daylight
13h 4min
12h 2min
11h 1min
Average sunshine
10h 4min
9h 1min
5h 5min
Average sunshine days
13.1
14.3
16.6
Average UV index
6
5
4
Average cloud cover
27%
33%
38%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in September
Ocean View, DE

Average temperature in September - Ocean View, DE
  • Average high temperature in September: 73.9°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (41.7°F).

  • Average low temperature in September: 68.9°F

The month with the highest average low temperature is July (74.1°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

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Average pressure in September
Ocean View, DE

Average pressure in September - Ocean View, DE
  • Average pressure in September: 30.04"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 September
Ocean View, DE

Average wind speed in September - Ocean View, DE
  • Average wind speed in September: 11.3mph

The windiest months (with the highest average wind speed) are January and November (13.5mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).

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Average humidity in September
Ocean View, DE

Average humidity in September - Ocean View, DE
  • Average humidity in September: 77%

The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in September
Ocean View, DE

Average rainfall in September - Ocean View, DE
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is November (1.14").

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Average rainfall days in September
Ocean View, DE

Average rainfall days in September - Ocean View, DE
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (8.5 days).

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Average snowfall in September
Ocean View, DE

Average snowfall in September - Ocean View, DE
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Ocean View, DE

Average snowfall days in September - Ocean View, DE
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Ocean View, DE

Average daylight in September / Average sunshine in September - Ocean View, DE
  • Average daylight in September: 12h 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 September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in September
Ocean View, DE

Average sunshine days in September - Ocean View, DE
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is August (13.1 days).

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Average UV index in September
Ocean View, DE

Average UV index in September - Ocean View, DE
  • Average UV index in September: 5

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 and December (UV index 2).

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Average cloud cover in September
Ocean View, DE

Average cloud cover in September - Ocean View, DE
  • Average cloud cover in September: 33

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in September
Ocean View, DE

Average visibility in September - Ocean View, DE
  • Average visibility in September: 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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Ocean View, Delaware, USA

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