All data are in degrees Fahrenheit

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Water temperature in Long Beach

Detailed information about the current water temperature in Long Beach. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Long Beach now

72.7

°F

September 22, 12:39

Trend:

decreasing

Yesterday:

73.0°F

Tomorrow:

72.4°F

Sunrise:

06:41

Sunset:

18:50

Day Length:

12 h. 9 min.

Long Beach in September

Minimum:

57.1°F

Average:

59.0°F

Maximum:

61.7°F

Sea water temperature in Long Beach today

As of now, in Long Beach, the water temperature is 72.7°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 5.6°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 70.0°F on 2022, while the historical minimum was 64.3°F on 2021.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 71.8°F, the minimum temperature may reach 71.3°F, and the maximum might stay at 72.4°F.

Daily water temperature in Long Beach

Date Current Year

actual* / forecast**

last year 10 years average
Sep 8 71.1°F 67.8°F 67.4°F
Sep 9 70.9°F 68.2°F 68.0°F
Sep 10 70.5°F 67.7°F 68.1°F
Sep 11 69.6°F 68.1°F 67.9°F
Sep 12 70.2°F 67.9°F 68.3°F
Sep 13 72.1°F 68.2°F 68.6°F
Sep 14 72.7°F 67.6°F 68.5°F
Sep 15 73.2°F 67.7°F 68.5°F
Sep 16 74.0°F 68.5°F 68.1°F
Sep 17 74.0°F 69.5°F 68.0°F
Sep 18 74.3°F 69.7°F 67.9°F
Sep 19 73.8°F 68.7°F 67.7°F
Sep 20 73.4°F 69.4°F 67.4°F
Sep 21 73.0°F 68.8°F 67.4°F
Sep 22 72.7°F 67.3°F 67.1°F
Sep 23 72.4°F 66.6°F 66.8°F
Sep 24 72.0°F 65.2°F 66.3°F
Sep 25 71.4°F 63.0°F 65.8°F
Sep 26 71.3°F 63.4°F 65.7°F
Sep 27 71.6°F 64.6°F 65.9°F
Sep 28 71.6°F 65.6°F 66.0°F
Sep 29 72.1°F 66.5°F 66.4°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Long Beach by month

In an average year, Long Beach offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Long Beach was recorded on August 30, 2026, reaching a 75.3°F. While the coldest temperature occurred on April 11, 2023, dipping to 51.6°F. The average readings by season are 59.3°F in Winter, 59.6°F in Spring, 65.4°F in Summer, and 65.1°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Redondo Beach 73.2°F 13mi
Venice 73.0°F 22mi
Laguna Beach 73.7°F 28mi
Malibu 72.7°F 38mi
Oceanside 73.8°F 61mi

* current water temperature in this city

** straight line distance from Long Beach