August Weather in Ocean City Maryland, United States

Daily high temperatures decrease by 3°F, from 83°F to 80°F, rarely falling below 74°F or exceeding 90°F.

Daily low temperatures decrease by 3°F, from 70°F to 67°F, rarely falling below 59°F or exceeding 77°F.

For reference, on July 20, the hottest day of the year, temperatures in Ocean City typically range from 71°F to 84°F, while on January 29, the coldest day of the year, they range from 29°F to 44°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Tsukawaki, Japan (7,218 miles away) and Uenohara, Japan (6,887 miles) are the far-away foreign places with temperatures most similar to Ocean City (view comparison).

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The month of August in Ocean City experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 39% throughout the month.

The clearest day of the month is August 30, with clear, mostly clear, or partly cloudy conditions 62% of the time.

For reference, on January 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 51%, while on October 11, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 64%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Ocean City, the chance of a wet day over the course of August is very rapidly decreasing, starting the month at 38% and ending it at 29%.

For reference, the year's highest daily chance of a wet day is 40% on August 6, and its lowest chance is 21% on October 19.

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during August in Ocean City is gradually decreasing, starting the month at 3.8 inches, when it rarely exceeds 7.1 inches or falls below 1.5 inches, and ending the month at 3.4 inches, when it rarely exceeds 6.4 inches or falls below 1.1 inches.

The highest average 31-day accumulation is 3.9 inches on August 11.

Over the course of August in Ocean City, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 5 minutes, implying an average daily decrease of 2 minutes, 10 seconds, and weekly decrease of 15 minutes, 13 seconds.

The shortest day of the month is August 31, with 13 hours, 1 minute of daylight and the longest day is August 1, with 14 hours, 7 minutes of daylight.

The earliest sunrise of the month in Ocean City is 6:03 AM on August 1 and the latest sunrise is 26 minutes later at 6:29 AM on August 31.

The latest sunset is 8:09 PM on August 1 and the earliest sunset is 39 minutes earlier at 7:30 PM on August 31.

Daylight saving time is observed in Ocean City during 2024, but it neither starts nor ends during August, so the entire month is in daylight saving time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:36 AM and sets 14 hours, 50 minutes later, at 8:27 PM, while on December 21, the shortest day of the year, it rises at 7:13 AM and sets 9 hours, 30 minutes later, at 4:43 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for August 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in Ocean City is very rapidly decreasing during August, falling from 81% to 60% over the course of the month.

The highest chance of a muggy day during August is 81% on August 1.

For reference, on August 1, the muggiest day of the year, there are muggy conditions 81% of the time, while on February 9, the least muggy day of the year, there are muggy conditions 0% of the time.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Ocean City is gradually increasing during August, increasing from 9.4 miles per hour to 10.3 miles per hour over the course of the month.

For reference, on January 13, the windiest day of the year, the daily average wind speed is 15.3 miles per hour, while on July 25, the calmest day of the year, the daily average wind speed is 9.3 miles per hour.

The hourly average wind direction in Ocean City throughout August is predominantly from the south, with a peak proportion of 42% on August 1.

Ocean City is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in Ocean City is essentially constant during August, remaining within 1°F of 75°F throughout.

The highest average surface water temperature during August is 76°F on August 6.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Ocean City typically lasts for 7.4 months (225 days), from around March 30 to around November 11, rarely starting before March 14 or after April 17, and rarely ending before October 24 or after November 29.

The month of August in Ocean City is reliably fully within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Ocean City are rapidly increasing during August, increasing by 749°F, from 2,101°F to 2,849°F, over the course of the month.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in Ocean City is gradually decreasing during August, falling by 0.6 kWh, from 6.3 kWh to 5.6 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Ocean City are 38.336 deg latitude, -75.085 deg longitude, and 3 ft elevation.

The topography within 2 miles of Ocean City is essentially flat, with a maximum elevation change of 13 feet and an average elevation above sea level of 1 foot. Within 10 miles is also essentially flat (69 feet). Within 50 miles is essentially flat (128 feet).

The area within 2 miles of Ocean City is covered by water (77%) and artificial surfaces (14%), within 10 miles by water (65%) and cropland (16%), and within 50 miles by water (65%) and cropland (16%).