August weather forecastChesapeake Beach, MD
August
Weather in August
As the end of August rolls around, Chesapeake beach begins winding down from the height of summer. Although daytime temperature remains quite high at an average 82.9°F (28.3°C), nights start receiving the faint whispers of the fast-approaching fall. The daylight hours begin to shorten in August, dropping down to 13.6 hours from the previous highs of 14.6 hours in July. Alongside the slight decrease in daylight, there is a noticeable increase in rainfall that registers an average height of 2.4" (61mm). August remains mostly hot and humid, but with an undeniable hint of change in the air.Temperature
Chesapeake Beach commences August with an average high-temperature of a still warm 82.9°F (28.3°C), maintaining a close resemblance to the previous month. Chesapeake Beach, during the month of August, experiences an average low-temperature of 70.5°F (21.4°C).Heat index
August's mean heat index is calculated to be a hot 89.6°F (32°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
In August, the average relative humidity is 75%.Rainfall
The month with the most rainfall is August, when the rain falls for 14.8 days and typically aggregates up to 2.4" (61mm) of precipitation.Snowfall
April through October are months without snowfall.Ocean temperature
August is the month with the warmest seawater, with an average ocean temperature of 77.9°F (25.5°C).Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.
Daylight
The average length of the day in August is 13h and 38min.On the first day of the month, sunrise is at 6:08 am and sunset at 8:16 pm. On the last day of August, sunrise is at 6:35 am and sunset at 7:37 pm EDT.
Sunshine
In Chesapeake Beach, Maryland, the average sunshine in August 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 of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 6 during August translates into the following guidance:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Warning! The Sun's UV rays intensify with reflections from sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Chesapeake Beach, MD
- Average high temperature in August: 82.9°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 (40.6°F).
- Average low temperature in August: 70.5°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in August
Chesapeake Beach, 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
Chesapeake Beach, MD
- Average wind speed in August: 6.7mph
The windiest months (with the highest average wind speed) are January and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in August
Chesapeake Beach, MD
- Average humidity in August: 75%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in August
Chesapeake Beach, MD
- Average rainfall in August: 2.4"
The wettest month (with the highest rainfall) is August (2.4").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in August
Chesapeake Beach, MD
- Average rainfall days in August: 14.8 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (6.6 days).
Average snowfall in August
Chesapeake Beach, MD
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Chesapeake Beach, MD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in August
Chesapeake Beach, MD
- Average sea temperature in August: 78°F
The best month for swimming (with the highest average sea temperature) is August (78°F).
The coldest month (with the lowest average sea temperature) is February (45.9°F).
Average daylight in August /
Average sunshine in August
Chesapeake Beach, MD
- Average daylight in August: 13h and 36min
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 August: 10h and 30min
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 6min).
Average sunshine days in August
Chesapeake Beach, MD
- Average sunshine days in August: 13.7 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (13.7 days).
Average UV index in August
Chesapeake Beach, 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 and December (UV index 2).
Average cloud cover in August
Chesapeake Beach, MD
- Average cloud cover in August: 29
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in August
Chesapeake Beach, 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).





