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

May 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
The last month of the spring, May, is a moderately hot month in Long Beach, California, with average temperature ranging between min 57.6°F (14.2°C) and max 73.6°F (23.1°C).

Temperature

In Long Beach, the average high-temperature is practically the same as in April - a warm 73.6°F (23.1°C). The average low-temperature, in Long Beach, California, is 57.6°F (14.2°C).

Humidity

In May, the average relative humidity in Long Beach is 68.2%.

Rainfall

In Long Beach, California, during 1.1 rainfall days, 0.2" (4mm) of precipitation is typically accumulated. In Long Beach, during the entire year, the rain falls for 35.2 days and collects up to 10.2" (259mm) of precipitation.

Ocean temperature

In Long Beach, the average seawater temperature is 62.1°F (16.7°C).
Note: For swimming, a surface water temperature of 62.1°F (16.7°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).

Daylight

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

Sunshine

In Long Beach, the average sunshine is 9h.

UV index

In May, the average daily maximum UV index in Long Beach is 9. A UV Index value of 8 to 10 symbolizes a very high threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: In May, the average maximum UV index of 9 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in May in Long Beach?

In Long Beach, California, in May, the average high-temperature is 73.6°F (23.1°C), and the average low-temperature is 57.6°F (14.2°C).

What is the average humidity in May in Long Beach?

In May, the average relative humidity in Long Beach, California, is 68.2%.

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

In Long Beach, California, in May, during 1.1 rainfall days, 0.2" (4mm) of precipitation is typically accumulated.

What is the ocean temperature in May in Long Beach?

In May, the average ocean temperature in Long Beach is 62.1°F (16.7°C). 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).

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

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

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

In Long Beach, the average sunshine in May is 9h.

How high is the UV index in May in Long Beach?

In Long Beach, California, the average daily maximum UV index in May is 9. A UV Index estimate of 8 to 10 represents a very high health risk from the exposure to the Sun's UV rays.
Average temperature in May - Long Beach, CA
  • Average high temperature in May: 73.6°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 May: 57.6°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 May - Long Beach, CA
  • Average humidity in May: 68.2%

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

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 May - Long Beach, CA
  • Average rainfall days in May: 1.1 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 May - Long Beach, CA
  • Average sea temperature in May: 62.1°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 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 shortest days is December (Average daylight: 9.9h).

  • Average sunshine in May: 9h

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 May - Long Beach, CA
  • Average UV index in May: 9

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).