May 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 May

The last month of the spring, May, is another pleasant month in Long Beach, California, with average temperature varying between 70°F (21.1°C) and 57°F (13.9°C).

Temperature

In May, the average high-temperature is almost the same as in April - a still agreeable 70°F (21.1°C). In Long Beach, the average low-temperature is 57°F (13.9°C).

Humidity

In May, the average relative humidity in Long Beach, California, is 67%.

Rainfall

In May, the rain falls for 3.4 days. Throughout May, 0.16" (4mm) of precipitation is accumulated. Throughout the year, there are 47.2 rainfall days, and 5.59" (142mm) of precipitation is accumulated.

Ocean temperature

In May, the average ocean temperature in Long Beach, California, is 62.1°F (16.7°C).
Note: Swimming in 62.1°F (16.7°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

Daylight

The average length of the day in Long Beach is 13.9h.

Sunshine

In Long Beach, the average sunshine is 11.2h.

UV index

In Long Beach, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for the average person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
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FAQ

What is the temperature in May in Long Beach?

The average high-temperature, in May, is 70°F (21.1°C), while the average low-temperature is 57°F (13.9°C).

What is the average humidity in May in Long Beach?

In May, the average relative humidity in Long Beach, California, is 67%.

How much does it rain in Long Beach in May?

In Long Beach, California, during May, the rain falls for 3.4 days and regularly aggregates up to 0.16" (4mm) of precipitation.

How cold is the water in May in Long Beach?

In Long Beach, California, the average seawater temperature in May is 62.1°F (16.7°C). For most, swimming in 62.1°F (16.7°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).

How many hours of daylight does Long Beach have in May?

In May, the average length of the day in Long Beach, California, is 13.9h.

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

In May, the average sunshine in Long Beach is 11.2h.

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

In Long Beach, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in May
Long Beach, CA

Average temperature in May - Long Beach, CA
  • Average high temperature in May: 70°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 May: 57°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 May
Long Beach, CA

Average pressure in May - Long Beach, CA
  • Average pressure in May: 29.93"

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 May
Long Beach, CA

Average wind speed in May - Long Beach, CA
  • Average wind speed in May: 6.2mph

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 May
Long Beach, CA

Average humidity in May - Long Beach, CA
  • Average humidity in May: 67%

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 May
Long Beach, CA

Average rainfall in May - Long Beach, CA
  • Average rainfall in May: 0.16"

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 May
Long Beach, CA

Average rainfall days in May - Long Beach, CA
  • Average rainfall days in May: 3.4 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 May
Long Beach, CA

Average sea temperature in May - Long Beach, CA
  • Average sea temperature in May: 62.1°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 May /
Average sunshine in May
Long Beach, CA

Average daylight in May / Average sunshine in May - Long Beach, CA
  • Average daylight in May: 13.9h

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 May: 11.2h

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 May
Long Beach, CA

Average sunshine days in May - Long Beach, CA
  • Average sunshine days in May: 23 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 May
Long Beach, CA

Average UV index in May - Long Beach, CA
  • Average UV index in May: 5

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 May
Long Beach, CA

Average cloud cover in May - Long Beach, CA
  • Average cloud cover in May: 18

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 May
Long Beach, CA

Average visibility in May - Long Beach, CA
  • Average visibility in May: 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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