Long Beach
California, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Long Beach, CA

A stunning shot of a colorful sunset sky over the Pacific Ocean in Long Beach, California, and views of distant city buildings, calm water, and soft sand
A stunning shot of a colorful sunset sky over the Pacific Ocean in Long Beach, California, and views of distant city buildings, calm water, and soft sand
August, the last month of the summer, in Long Beach, is also a moderately hot month, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 83.8°F (28.8°C).

Temperature

With an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 64.9°F (18.3°C), August is the warmest month.

Heat index

The average heat index is estimated at a hot 89.6°F (32°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, wind, metabolic differences), and activity. 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 particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in Long Beach, California, is 68.5%.

Rainfall

Months with the least rainfall are June through August Rain falls for 0.3 days and accumulates 0" (1mm) of rain.

Ocean temperature

July and August, with an average ocean temperature of 67.8°F (19.9°C), are months with the warmest seawater in Long Beach.
Note: For most, swimming in 67.8°F (19.9°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

The average length of the day is 13.4h.

Sunshine

Months with the most sunshine are July and August, with an average of 11h of sunshine.

UV index

June through August, with an average maximum UV index of 10, are months with the highest UV index in Long Beach. A UV Index value of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 10 in August transform into the following instructions:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used.

What is the warmest month in Long Beach?

With an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 64.9°F (18.3°C), August is the warmest month in Long Beach.

What is the temperature in August in Long Beach?

The average high-temperature, in August, in Long Beach, California, is 83.8°F (28.8°C), while the average low-temperature is 64.9°F (18.3°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that takes the relative humidity and factores it into the air temperature reading, is calculated to 89.6°F (32°C).

What is the average humidity in August in Long Beach?

In August, the average relative humidity in Long Beach, California, is 68.5%.

How many days does it rain in August in Long Beach?

In Long Beach, California, in August, it is raining for 0.3 days, with typically 0" (1mm) of accumulated precipitation.

What is the driest month in Long Beach?

Months with the least rainfall in Long Beach, California, are June through August Rain falls for 0.3 days and accumulates 0" (1mm) of rain.

What are the months with the warmest ocean in Long Beach?

Months with the warmest seawater are July and August, with an average ocean temperature of 67.8°F (19.9°C).

How cold is the water in August in Long Beach?

In Long Beach, California, in August, the average water temperature is 67.8°F (19.9°C). Swimming in 67.8°F (19.9°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

What is the average length of the day in August in Long Beach?

The average length of the day in August in Long Beach, California, is 13.4h.

What are the months with the most sunshine in Long Beach?

July and August, with an average of 11h of sunshine, are months with the most sunshine in Long Beach.

How long on average sun shines in August in Long Beach?

In August, the average sunshine in Long Beach is 11h.

What are the months with the highest UV index in Long Beach?

Months with the highest UV index in Long Beach, California, are June through August, with an average maximum UV index of 10.

What is the UV index intensity in August in Long Beach?

The average daily maximum UV index in August in Long Beach is 10. A UV Index reading of 8 to 10 represents a very high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in August - Long Beach, CA
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is August (83.8°F).
The month with the lowest average high temperature is December (66.8°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (45.8°F).

Average humidity in August - Long Beach, CA
  • Average humidity in August: 68.5%

The month with the highest relative humidity is June (69.6%).
The month with the lowest relative humidity is January (64.7%).

Average rainfall in August - Long Beach, CA
  • Average rainfall in August: 0"

The wettest month (with the highest rainfall) is January (2.3").
Driest months (with the lowest rainfall) are June, July and August (0").

Average rainfall days in August - Long Beach, CA
  • Average rainfall days in August: 0.3 days

The month with the highest number of rainy days is February (6.5 days).
The month with the lowest number of rainy days is August (0.3 days).

Average sea temperature in August - Long Beach, CA
  • Average sea temperature in August: 67.9°F

Best months for swimming (with the highest average sea temperature) are July and August (67.9°F).
The coldest month (with the lowest average sea temperature) is January (58.3°F).

Average daylight in August / Average sunshine in August - Long Beach, CA
  • Average daylight in August: 13.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in August: 11h

Months with most sunshine are July and August (Average sunshine: 11h).
Months with least sunshine are January, November and December (Average sunshine: 7).

Average UV index in August - Long Beach, CA
  • Average UV index in August: 10

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).