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

76.6

°F

September 7, 08:30

Trend:

stable

Yesterday:

76.2°F

Tomorrow:

76.4°F

Sunrise:

06:40

Sunset:

19:27

Day Length:

12 h. 47 min.

Long Beach in September

Minimum:

33.3°F

Average:

41.1°F

Maximum:

44.8°F

Sea water temperature in Long Beach today

As of now, in Long Beach, the water temperature is 76.6°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.4°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature closely matches the previous two weeks' average, indicating a stable trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 84.9°F on 2018, while the historical minimum was 74.6°F on 2017.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest 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 75.8°F, the minimum temperature may reach 75.2°F, and the maximum might stay at 76.4°F.

Daily water temperature in Long Beach

Date Current Year

actual* / forecast**

last year 10 years average
Aug 24 77.8°F 78.2°F 80.6°F
Aug 25 77.9°F 78.0°F 80.4°F
Aug 26 78.0°F 77.7°F 80.2°F
Aug 27 77.8°F 78.2°F 80.3°F
Aug 28 77.3°F 78.9°F 80.2°F
Aug 29 77.0°F 78.9°F 80.3°F
Aug 30 76.7°F 79.5°F 80.2°F
Aug 31 76.2°F 78.7°F 80.1°F
Sep 1 75.5°F 78.9°F 80.1°F
Sep 2 75.7°F 79.1°F 79.6°F
Sep 3 75.7°F 78.7°F 79.2°F
Sep 4 75.3°F 77.9°F 79.3°F
Sep 5 76.0°F 77.3°F 79.3°F
Sep 6 76.2°F 76.2°F 79.0°F
Sep 7 76.6°F 75.6°F 79.0°F
Sep 8 76.4°F 75.0°F 78.8°F
Sep 9 76.4°F 75.4°F 78.9°F
Sep 10 76.0°F 74.3°F 78.4°F
Sep 11 75.7°F 73.8°F 78.1°F
Sep 12 75.4°F 74.7°F 77.8°F
Sep 13 75.3°F 75.8°F 77.8°F
Sep 14 75.2°F 75.2°F 77.6°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 Long Beach, the months June through September offer comfortable swimming conditions, which amounts to 107 swimming days.
The warmest water in Long Beach was recorded on July 30, 2025, reaching a 86.0°F. While the coldest temperature occurred on February 20, 2015, dipping to 32.0°F. The average readings by season are 42.1°F in Winter, 53.7°F in Spring, 78.8°F in Summer, and 67.4°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Annapolis 76.8°F 36mi
Warsaw 76.8°F 38mi
Baltimore 75.8°F 58mi

* current water temperature in this city

** straight line distance from Long Beach