August weather forecast and climate
Long Beach, CA

A colorful sunset sky over the Pacific Ocean in Long Beach, California
A colorful sunset sky over the Pacific Ocean in Long Beach, California

Weather in August

The last month of the summer, August, is also a moderately hot month in Long Beach, California, with average temperature fluctuating between 79.5°F (26.4°C) and 64.9°F (18.3°C).

Temperature

With an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 64.9°F (18.3°C), August is the warmest month.

Humidity

The average relative humidity in Long Beach is 65%.

Rainfall

In August, in Long Beach, the rain falls for 2.6 days. Throughout August, 0.2" (5mm) of precipitation is accumulated. Throughout the year, in Long Beach, California, there are 47.2 rainfall days, and 5.59" (142mm) of precipitation is accumulated.

Ocean temperature

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

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

Sunshine

Months with the most sunshine are July and August, with an average of 12h of sunshine.

UV index

Months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the warmest month in Long Beach?

With an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 64.9°F (18.3°C), August is the warmest month.

What is the temperature in August in Long Beach?

In Long Beach, California, in August, the average high-temperature is 79.5°F (26.4°C), and the average low-temperature is 64.9°F (18.3°C).

What is the average humidity in August in Long Beach?

The average relative humidity in August in Long Beach, California, is 65%.

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

In Long Beach, in August, it is raining for 2.6 days, with typically 0.2" (5mm) of accumulated precipitation.

When is the ocean warmest in Long Beach?

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

How cold is the water in August in Long Beach?

In August, the average ocean temperature in Long Beach, California, is 67.8°F (19.9°C). For swimming, a surface water temperature of 67.8°F (19.9°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

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

In August, the average length of the day is 13.4h.

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

July and August, with an average of 12h of sunshine, are months with the most sunshine in Long Beach, California.

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

In Long Beach, California, the average sunshine in August is 12h.

When is the highest UV index in Long Beach?

June through September, with an average maximum UV index of 6, are months with the highest UV index in Long Beach, California.

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

In August, the average daily maximum UV index in Long Beach is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in August
Long Beach, CA

Average temperature in August - Long Beach, CA
  • Average high temperature in August: 79.5°F

The warmest month (with the highest average high temperature) is August (79.5°F).
The month with the lowest average high temperature is December (63.5°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 February (52°F).

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Average pressure in August
Long Beach, CA

Average pressure in August - Long Beach, CA
  • Average pressure in August: 29.9"

The month with the highest atmospheric pressure is January (30.1").
Months with the lowest atmospheric pressure are June and September (29.89").

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Average wind speed in August
Long Beach, CA

Average wind speed in August - Long Beach, CA
  • Average wind speed in August: 5.2mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest months (with the lowest average wind speed) are September and October (5mph).

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Average humidity in August
Long Beach, CA

Average humidity in August - Long Beach, CA
  • Average humidity in August: 65%

The month with the highest relative humidity is June (71%).
The month with the lowest relative humidity is November (55%).

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Average rainfall in August
Long Beach, CA

Average rainfall in August - Long Beach, CA
  • Average rainfall in August: 0.2"

The wettest month (with the highest rainfall) is December (1.14").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in August
Long Beach, CA

Average rainfall days in August - Long Beach, CA
  • Average rainfall days in August: 2.6 days

The month with the highest number of rainy days is March (6 days).
The month with the least rainy days is June (1.8 days).

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Average sea temperature in August
Long Beach, CA

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

The 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).

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Average daylight in August /
Average sunshine in August
Long Beach, CA

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 the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in August: 12h

Months with the most sunshine are July and August (Average sunshine: 12h).
Months with the least sunshine are January, February and December (Average sunshine: 6.8).

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Average sunshine days in August
Long Beach, CA

Average sunshine days in August - Long Beach, CA
  • Average sunshine days in August: 24.5 days

The month with the most sunshine days is January (25.7 days).
The month with the least sunshine days is June (20.8 days).

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Average UV index in August
Long Beach, CA

Average UV index in August - Long Beach, CA
  • Average UV index in August: 6

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in August
Long Beach, CA

Average cloud cover in August - Long Beach, CA
  • Average cloud cover in August: 7

Months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in August
Long Beach, CA

Average visibility in August - Long Beach, CA
  • Average visibility in August: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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