August weather forecast and climate
Smyrna, DE

The last month of the summer, August, is also a moderately hot month in Smyrna, Delaware, with average temperature varying between 67.6°F (19.8°C) and 82.4°F (28°C).

Temperature

In Smyrna, Delaware, the average high-temperature in August is essentially the same as in July - a still moderately hot 82.4°F (28°C). The average low-temperature, in Smyrna, is 67.6°F (19.8°C).

Heat index

The average heat index in August is appraised at a hot 89.2°F (31.8°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like clothing, wind, metabolic differences, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Smyrna, Delaware, the average relative humidity in August is 78%.

Rainfall

August is the month with the most rainfall in Smyrna. Rain falls for 16.4 days and accumulates 3.86" (98mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August is 13.7h.

Sunshine

In August, the average sunshine is 10.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Smyrna. A UV Index estimate of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in August in Smyrna?

In August, the average high-temperature is 82.4°F (28°C), and the average low-temperature is 67.6°F (19.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), that represents influence of the relative humidity to air temperaure, is evaluated at 89.2°F (31.8°C).

What is the average humidity in August in Smyrna?

The average relative humidity in August in Smyrna is 78%.

How much does it rain in Smyrna in August?

In Smyrna, in August, during 16.4 rainfall days, 3.86" (98mm) of precipitation is typically accumulated.

What is the rainiest month in Smyrna?

The month with the most rainfall in Smyrna, Delaware, is August when the rain falls for 16.4 days and typically aggregates up to 3.86" (98mm) of precipitation.

When it does not snow in Smyrna?

In Smyrna, Delaware, snow does not fall in May through October.

What is the average length of the day in August in Smyrna?

In August, the average length of the day in Smyrna is 13.7h.

How long on average sun shines in August in Smyrna?

In Smyrna, the average sunshine in August is 10.5h.

When is the highest UV index in Smyrna?

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

How high is the UV index in August in Smyrna?

In August, the average daily maximum UV index in Smyrna, Delaware, is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in August - Smyrna, DE
  • Average high temperature in August: 82.4°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 (39.2°F).

  • Average low temperature in August: 67.6°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in August - Smyrna, DE
  • Average pressure in August: 29.98"

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

Average wind speed in August - Smyrna, DE
  • Average wind speed in August: 6mph

The windiest months (with the highest average wind speed) are February and March (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in August - Smyrna, DE
  • Average humidity in August: 78%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in August - Smyrna, DE
  • Average rainfall in August: 3.86"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").

Average rainfall days in August - Smyrna, DE
  • Average rainfall days in August: 16.4 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in August - Smyrna, DE
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.6").
Months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August - Smyrna, DE
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.5 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August / Average sunshine in August - Smyrna, DE
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in August: 10.5h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 5.1h).

Average sunshine days in August - Smyrna, DE
  • Average sunshine days in August: 11.3 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in August - Smyrna, DE
  • Average UV index in August: 6

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

Average cloud cover in August - Smyrna, DE
  • Average cloud cover in August: 30

Months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in August - Smyrna, DE
  • Average visibility in August: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).