August Weather in Long Beach United States

Daily high temperatures are around 89°F, rarely falling below 84°F or exceeding 94°F.

Daily low temperatures are around 75°F, rarely falling below 70°F or exceeding 79°F.

For reference, on July 22, the hottest day of the year, temperatures in Long Beach typically range from 76°F to 90°F, while on January 17, the coldest day of the year, they range from 44°F to 61°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.

El Hamma, Tunisia (5,547 miles away) and Longmen, China (8,220 miles) are the far-away foreign places with temperatures most similar to Long Beach (view comparison).

© OpenStreetMap contributors

Compare Long Beach to another city:

CompareMap

The month of August in Long Beach experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 57% to 47%.

The clearest day of the month is August 31, with clear, mostly clear, or partly cloudy conditions 53% of the time.

For reference, on July 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 59%, while on October 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Long Beach, the chance of a wet day over the course of August is very rapidly decreasing, starting the month at 56% and ending it at 41%.

For reference, the year's highest daily chance of a wet day is 58% on July 27, and its lowest chance is 21% on October 29.

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 Long Beach is gradually decreasing, starting the month at 5.3 inches, when it rarely exceeds 8.8 inches or falls below 2.4 inches, and ending the month at 4.9 inches, when it rarely exceeds 10.2 inches or falls below 1.5 inches.

Over the course of August in Long Beach, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 48 minutes, implying an average daily decrease of 1 minute, 36 seconds, and weekly decrease of 11 minutes, 11 seconds.

The shortest day of the month is August 31, with 12 hours, 47 minutes of daylight and the longest day is August 1, with 13 hours, 35 minutes of daylight.

The earliest sunrise of the month in Long Beach is 6:15 AM on August 1 and the latest sunrise is 18 minutes later at 6:33 AM on August 31.

The latest sunset is 7:50 PM on August 1 and the earliest sunset is 30 minutes earlier at 7:19 PM on August 31.

Daylight saving time is observed in Long Beach during 2024, but it neither starts nor ends during August, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:55 AM and sets 14 hours, 7 minutes later, at 8:01 PM, while on December 21, the shortest day of the year, it rises at 6:49 AM and sets 10 hours, 11 minutes later, at 5:00 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 Long Beach is decreasing during August, falling from 98% to 93% over the course of the month.

For reference, on July 22, the muggiest day of the year, there are muggy conditions 99% of the time, while on January 23, the least muggy day of the year, there are muggy conditions 3% 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 Long Beach is gradually increasing during August, increasing from 5.8 miles per hour to 6.3 miles per hour over the course of the month.

For reference, on January 5, the windiest day of the year, the daily average wind speed is 8.7 miles per hour, while on August 7, the calmest day of the year, the daily average wind speed is 5.7 miles per hour.

The lowest daily average wind speed during August is 5.7 miles per hour on August 7.

The wind direction in Long Beach during August is predominantly out of the west from August 1 to August 6, the south from August 6 to August 22, and the east from August 22 to August 31.

Long Beach 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 Long Beach is essentially constant during August, remaining around 85°F throughout.

The highest average surface water temperature during August is 85°F on August 13.

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 Long Beach typically lasts for 10 months (306 days), from around February 14 to around December 16, rarely starting before January 19 or after March 10, and rarely ending before November 19 or after January 7.

The month of August in Long Beach 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 Long Beach are very rapidly increasing during August, increasing by 925°F, from 3,960°F to 4,885°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 Long Beach is essentially constant during August, remaining within 0.1 kWh of 5.3 kWh throughout.

For the purposes of this report, the geographical coordinates of Long Beach are 30.350 deg latitude, -89.153 deg longitude, and 23 ft elevation.

The topography within 2 miles of Long Beach is essentially flat, with a maximum elevation change of 30 feet and an average elevation above sea level of 14 feet. Within 10 miles is essentially flat (135 feet). Within 50 miles also contains only modest variations in elevation (397 feet).

The area within 2 miles of Long Beach is covered by water (35%), cropland (25%), artificial surfaces (22%), and herbaceous vegetation (14%), within 10 miles by water (50%) and herbaceous vegetation (17%), and within 50 miles by water (41%) and herbaceous vegetation (25%).