August weather forecast
Cape Saint John, MD

Share

Weather in August

The last month of the summer, August, is another warm month in Cape Saint John, Maryland, with an average temperature fluctuating between 83.3°F (28.5°C) and 70.5°F (21.4°C).

Temperature

In August, Cape Saint John's weather conditions record an average high-temperature of a still warm 83.3°F (28.5°C), demonstrating little divergence from the preceding month. During the month of August, Cape Saint John's nighttime temperature lowers to an average of 70.5°F (21.4°C).

Heat index

For August, the heat index is appraised at a hot 89.6°F (32°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. 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 extremely significant for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

In August, the average relative humidity is 74%.

Rainfall

The month with the most rainfall is August, when the rain falls for 14.3 days and typically aggregates up to 1.69" (43mm) of precipitation.

Snowfall

In Cape Saint John, snow does not fall in April through October.

Daylight

In August, the average length of the day is 13h and 38min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:17 pm. On the last day of August, sunrise is at 6:34 am and sunset at 7:37 pm EDT.

Sunshine

In August, the average sunshine in Cape Saint John is 10.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 6 in August translates into this advice:
Ward off overexposure. Defence against solar harm is crucial. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

Is it hot during August?

The average high-temperature, in August, in Cape Saint John, is 83.3°F (28.5°C), while the average low-temperature is 70.5°F (21.4°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 89.6°F (32°C).

What is the average humidity in August?

The average relative humidity in August is 74%.

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 14.3 days and accumulates 1.69" (43mm) of precipitation.

How much does it rain in August?

In Cape Saint John, in August, during 14.3 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

When it does not snow?

In Cape Saint John, snow does not fall in April through October.

How many hours of daylight does Cape Saint John have in August?

In Cape Saint John, the average day length in August is 13h and 38min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:07 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:37 pm EDT.

How many hours of sunshine does Cape Saint John have in August?

In August, the average sunshine duration is 10.5h.

When is the highest UV index?

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 August?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe 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 August
Cape Saint John, MD

Average temperature in August - Cape Saint John, MD
  • Average high temperature in August: 83.3°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in August: 70.5°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in August
Cape Saint John, MD

Average pressure in August - Cape Saint John, MD
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Cape Saint John, MD

Average wind speed in August - Cape Saint John, MD
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in August
Cape Saint John, MD

Average humidity in August - Cape Saint John, MD
  • Average humidity in August: 74%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall in August
Cape Saint John, MD

Average rainfall in August - Cape Saint John, MD
  • Average rainfall in August: 1.69"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in August
Cape Saint John, MD

Average rainfall days in August - Cape Saint John, MD
  • Average rainfall days in August: 14.3 days

The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

Average snowfall in August
Cape Saint John, MD

Average snowfall in August - Cape Saint John, MD
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Cape Saint John, MD

Average snowfall days in August - Cape Saint John, MD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Cape Saint John, MD

Average daylight in August / Average sunshine in August - Cape Saint John, MD
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 3min

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 0min).

Average sunshine days in August
Cape Saint John, MD

Average sunshine days in August - Cape Saint John, MD
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

Average UV index in August
Cape Saint John, MD

Average UV index in August - Cape Saint John, MD
  • Average UV index in August: 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 and December (UV index 2).

Average cloud cover in August
Cape Saint John, MD

Average cloud cover in August - Cape Saint John, MD
  • Average cloud cover in August: 29

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 28).

Average visibility in August
Cape Saint John, MD

Average visibility in August - Cape Saint John, MD
  • Average visibility in August: 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).

Cape Saint John, Maryland, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location