Measurements:
°C
°F
Long Beach
54°F
S 3 mph
Feels like: 54°F
Precip: 0%
World Resorts USA Long Beach Weather

Long Beach Sea Water Temperature

Current Sea Water Temperature:
+65.6°F
Maximum Sea Water Temperature in December: 67.6°F
Minimum Sea Water Temperature in December: 57.6°F
Average water temperature in December: 61.8°F

Sea Water Temperature for the Last 10 Days:

December 05 65.6°F November 30 66.2°F
December 04 65.6°F November 29 66.2°F
December 03 65.6°F November 28 66.0°F
December 02 66.2°F November 27 65.8°F
December 01 66.0°F November 26 65.4°F

When is the Warmest Sea for Long Beach?

According to our data for the last three years for Long Beach the highest average sea water temperature was in September, August and July.

Average Water Temperature by Month, °F

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Long Beach was 69.4°F. The maximum and minimum values were 64.4°F and 72.4°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Long Beach was 71.2°F. The maximum and minimum values were 64.4°F and 74.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Long Beach was 65.3°F. The maximum and minimum values were 59.6°F and 70.0°F respectively.

Best Time to Visit Long Beach
The most sunny months:
July 22 days
August 21 days
January 20 days
The most warm months:
August 82.8 °F
September 82.2 °F
July 80.5 °F
Warmest sea temperature:
September 69.6 °F
August 69.0 °F
July 67.8 °F
The most cold months:
December 65.9 °F
January 66.2 °F
February 66.6 °F
The most rainy months:
February 2 days
March 2 days
January 2 days
The most windy months:
May 7 mph
April 7 mph
March 7 mph

Long Beach on the Weather Map

USA Resorts:
NAME
Chicago -2
Hawaii +78
Honolulu +78
Houston +44
Las Vegas +40
Los Angeles +52
Maui +72
Miami +72
Miami Beach +80
New York +18
San Diego +54
San Francisco +46
Sarasota +62
Tampa +62
Washington +28
24 Hours Weather Forecast
Long Beach
Local time: 00:00
05 dec, friday
0300 48°F
SE
4 mph
0600 48°F
S
1 mph
0900 52°F
W
1 mph
1200 68°F
N
2 mph
1500 72°F
NE
6 mph
1800 66°F
NE
6 mph
2100 60°F
E
4 mph
06 dec, saturday
0000 58°F
NE
2 mph