The best time to visit Ocean City, New Jersey, is from May to September. Average high temperatures range from 67 to 81 degrees during the peak tourist season, providing the perfect environment for soaking up the sun and strolling on the boardwalk. The dates that bookend Ocean City's tourism season are May 15 and Labor Day, the first Monday in September. During the offseason, when average highs range from 42 to 65 degrees, many of the boardwalk and beach and boardwalk rules become less stringent. For example, dogs are allowed on the beach from October through April 30 (but never the boardwalk) and boardwalk bike hours are expanded during the offseason.
Protect Your Trip: Search, compare and buy the best travel insurance for the lowest price. Get a Quote.
Ocean City Weather Forecast for August 2021 is based on statistical data.
August
Average weather in August 2021
Compare with another month
Extended weather forecast in Ocean City
Weather in large and nearby cities
You can expect about 3 to 8 days of rain in Ocean City during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Ocean City in August 2023.
If you’re planning to visit Ocean City in the near future, we highly recommend that you review the 14 day weather forecast for Ocean City before you arrive.
Average visibility in August
Ocean City, NJ
- 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).
August
January February March April May June July August September October November December
2022
2021 2022 2023
Daily
S
M
T
W
T
F
S
31
31°
18°
1
28°
21°
2
34°
22°
3
33°
21°
4
33°
21°
5
32°
22°
6
33°
23°
7
33°
24°
8
33°
24°
9
37°
26°
10
31°
24°
11
29°
22°
12
28°
16°
13
28°
14°
14
27°
16°
15
27°
16°
16
27°
14°
17
27°
15°
18
31°
16°
19
32°
19°
20
31°
18°
21
29°
17°
22
29°
22°
23
32°
21°
24
33°
19°
25
34°
18°
26
33°
22°
27
32°
21°
28
31°
22°
29
30°
21°
30
31°
23°
31
31°
18°
1
31°
17°
2
26°
14°
3
27°
16°
Temperature Graph
°C40°34°28°22°16°Aug
12345678910111213141516171819202122232425262728293031
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
Further Ahead
September 2022
October 2022
November 2022
Daily high temperatures decrease by 2 °C, from 28 °C to 26 °C, rarely falling below 23 °C or exceeding 32 °C.
Daily low temperatures decrease by 2 °C, from 21 °C to 18 °C, rarely falling below 13 °C or exceeding 24 °C.
For reference, on July 21, the hottest day of the year, temperatures in Ocean City typically range from 21 °C to 29 °C, while on January 30, the coldest day of the year, they range from -2 °C to 5 °C.
Average High and Low Temperature in August in Ocean City
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
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.
Average Hourly Temperature in August in Ocean City
frigid -9 °C freezing 0 °C very cold 7 °C cold 13 °C cool 18 °C comfortable 24 °C warm 29 °C hot 35 °C sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
Qvareli, Georgia (9,174 kilometres away); Santyoku, South Korea (11,158 kilometres); and Aso, Japan (11,574 kilometres) are the far-away foreign places with temperatures most similar to Ocean City (view comparison).
Compare Ocean City to another city:
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 38% throughout the month.
The clearest day of the month is August 31, with clear, mostly clear, or partly cloudy conditions 63% of the time.
For reference, on December 24, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 52%, while on September 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 64%.
Cloud Cover Categories in August in Ocean City
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
A wet day is one with at least 1 millimetre of liquid or liquid-equivalent precipitation. In Ocean City, the chance of a wet day over the course of August is rapidly decreasing, starting the month at 34% and ending it at 26%.
For reference, the year's highest daily chance of a wet day is 35% on August 6, and its lowest chance is 21% on October 20.
Probability of Precipitation in August in Ocean City
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
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 88 millimetres, when it rarely exceeds 150 millimetres or falls below 36 millimetres, and ending the month at 80 millimetres, when it rarely exceeds 145 millimetres or falls below 27 millimetres.
The highest average 31-day accumulation is 92 millimetres on August 12.
Average Monthly Rainfall in August in Ocean City
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
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, 7 minutes, implying an average daily decrease of 2 minutes, 15 seconds, and weekly decrease of 15 minutes, 42 seconds.
The shortest day of the month is August 31, with 13 hours, 5 minutes of daylight and the longest day is August 1, with 14 hours, 12 minutes of daylight.
Hours of Daylight and Twilight in August in Ocean City
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
The earliest sunrise of the month in Ocean City is 5:58 a.m. on August 1 and the latest sunrise is 28 minutes later at 6:25 a.m. on August 31.
The latest sunset is 8:10 p.m. on August 1 and the earliest sunset is 40 minutes earlier at 7:30 p.m. on August 31.
Daylight saving time is observed in Ocean City during 2022, but it neither starts nor ends during August, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:31 a.m. and sets 14 hours, 56 minutes later, at 8:28 p.m., while on December 21, the shortest day of the year, it rises at 7:14 a.m. and sets 9 hours, 24 minutes later, at 4:38 p.m..
Sunrise & Sunset with Twilight in August in Ocean City
The solar day over the course of August. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.
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.
Solar Elevation and Azimuth in August in Ocean City
Solar elevation and azimuth over the course of August 2022. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).
The figure below presents a compact representation of key lunar data for August 2022. 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.
Moon Rise, Set & Phases in August in Ocean City
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
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 68% to 47% over the course of the month.
The highest chance of a muggy day during August is 68% on August 2.
For reference, on August 1, the muggiest day of the year, there are muggy conditions 68% of the time, while on January 9, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in August in Ocean City
dry 13 °C comfortable 16 °C humid 18 °C muggy 21 °C oppressive 24 °C miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
This section discusses the wide-area hourly average wind vector (speed and direction) at 10 metres 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 14.6 kilometres per hour to 15.7 kilometres 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 23.5 kilometres per hour, while on July 26, the calmest day of the year, the daily average wind speed is 14.5 kilometres per hour.
Average Wind Speed in August in Ocean City
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
The hourly average wind direction in Ocean City throughout August is predominantly from the south, with a peak proportion of 43% on August 2.
Wind Direction in August in Ocean City
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.6 km/h. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).
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 around 23 °C throughout.
The highest average surface water temperature during August is 24 °C on August 10.
Average Water Temperature in August in Ocean City
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
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 (≥ 0 °C) 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 7.2 months (221 days), from around April 4 to around November 10, rarely starting before March 17 or after April 25, and rarely ending before October 23 or after November 28.
The month of August in Ocean City is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in August in Ocean City
frigid -9 °C freezing 0 °C very cold 7 °C cold 13 °C cool 18 °C comfortable 24 °C warm 29 °C hot 35 °C sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is 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 10 °C and a cap of 30 °C.
The average accumulated growing degree days in Ocean City are rapidly increasing during August, increasing by 398 °C, from 1,104 °C to 1,502 °C, over the course of the month.
Growing Degree Days in August in Ocean City
The average growing degree days accumulated over the course of August, with 25th to 75th and 10th to 90th percentile bands.
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 5.7 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in August in Ocean City
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
For the purposes of this report, the geographical coordinates of Ocean City are 39.278 deg. latitude, -74.575 deg. longitude, and 2 m elevation.
The topography within 3 kilometres of Ocean City is essentially flat, with a maximum elevation change of 2 metres and an average elevation above sea level of 0 metres. Within 16 kilometres is also essentially flat (21 metres). Within 80 kilometres is essentially flat (65 metres).
The area within 3 kilometres of Ocean City is covered by water (77%) and artificial surfaces (21%), within 16 kilometres by water (56%) and artificial surfaces (17%), and within 80 kilometres by water (61%) and trees (20%).
This report illustrates the typical weather in Ocean City, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Ocean City.
For each station, the records are corrected for the elevation difference between that station and Ocean City according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Ocean City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Ocean City and a given station.
The stations contributing to this reconstruction are:
To get a sense of how much these sources agree with each other, you can view a comparison of Ocean City and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.
Other Data
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for airports and weather stations are provided by AskGeo.com .
Maps are © OpenStreetMap contributors.
Disclaimer
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.