August weather forecast
Long Beach, CA

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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

August sustains the summer warmth in Long Beach, California, and continues the trend of sunny and dry days. Lively, warm evenings are a highlight of this month, excellent for outdoor dining and late-night strolls by the beach as the sun sets. August stands as the warmest month with temperatures ranging from 64.9°F (18.3°C) to 79.5°F (26.4°C). As September takes over, it brings a subtle relief from the heat and a drop in relative humidity. August could easily be the poster child for that quintessential Long Beach, California summer weather.

Temperature

August is the warmest month of the year in Long Beach, registering average temperatures as high as 79.5°F (26.4°C) and as low as 64.9°F (18.3°C).

Humidity

The average relative humidity in August is 65%.

Rainfall

In Long Beach, during August, the rain falls for 2.6 days and regularly aggregates up to 0.2" (5mm) of precipitation. In Long Beach, California, during the entire year, the rain falls for 47.2 days and collects up to 5.59" (142mm) of precipitation.

Ocean temperature

The months with the warmest seawater in Long Beach are July and August, with an average ocean temperature of 67.8°F (19.9°C).
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 is 13h and 22min.
On the first day of the month, sunrise is at 6:05 am and sunset at 7:52 pm. On the last day of August, sunrise is at 6:26 am and sunset at 7:19 pm PDT.

Sunshine

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

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 6 in August leads to these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What is the hottest time of year in Long Beach?

August, recording an average high temperature of 79.5°F (26.4°C) and a low temperature of 64.9°F (18.3°C), is Long Beach's warmest month.

What are August temperatures in Long Beach?

During August, Long Beach experiences an average high-temperature of 79.5°F (26.4°C) and a low-temperature of 64.9°F (18.3°C).

What is the average humidity in August in Long Beach?

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

What is the ocean temperature 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 Long Beach, California, the average day length in August is 13h and 22min.

When are sunrise and sunset in August in Long Beach?

In August, on the first day of the month, sunrise is at 6:05 am and sunset at 7:52 pm. On the last day of the month, in Long Beach, California, sunrise is at 6:26 am and sunset at 7:19 pm PDT.

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

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

How many hours of sunshine does Long Beach have in August?

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

What is the month with the highest UV index in Long Beach?

The months with the highest UV index are June through September, with an average maximum UV index of 6.

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

In Long Beach, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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"Hg

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

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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: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in August: 12h and 0min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).

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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

The months with the highest UV index are June, July, August and September (UV index 6).
The 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

The 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

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).

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Long Beach, California, USA

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