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

71.3

°F

October 10, 14:37

Trend:

decreasing

Yesterday:

71.8°F

Tomorrow:

71.2°F

Sunrise:

07:10

Sunset:

18:35

Day Length:

11 h. 25 min.

Long Beach in October

Minimum:

33.3°F

Average:

41.0°F

Maximum:

45.2°F

Sea water temperature in Long Beach today

As of now, in Long Beach, the water temperature is 71.3°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 1.6°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

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 74.8°F on 2018, while the historical minimum was 64.0°F on 2022.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 70.3°F, the minimum temperature may reach 69.7°F, and the maximum might stay at 71.2°F.

Daily water temperature in Long Beach

Date Current Year

actual* / forecast**

last year 10 years average
Sep 26 73.7°F 72.9°F 73.9°F
Sep 27 74.2°F 73.0°F 73.7°F
Sep 28 73.7°F 73.1°F 73.5°F
Sep 29 73.7°F 74.1°F 73.2°F
Sep 30 74.3°F 74.2°F 73.2°F
Oct 1 73.7°F 73.6°F 72.7°F
Oct 2 73.3°F 73.1°F 72.1°F
Oct 3 72.9°F 72.6°F 71.9°F
Oct 4 72.4°F 72.8°F 71.6°F
Oct 5 71.5°F 72.7°F 71.5°F
Oct 6 71.9°F 72.6°F 71.1°F
Oct 7 72.3°F 72.2°F 70.7°F
Oct 8 72.4°F 72.6°F 70.6°F
Oct 9 71.8°F 71.4°F 70.2°F
Oct 10 71.3°F 71.3°F 69.7°F
Oct 11 71.2°F 71.1°F 69.5°F
Oct 12 70.7°F 69.2°F 69.1°F
Oct 13 70.4°F 68.9°F 68.8°F
Oct 14 70.3°F 69.2°F 68.7°F
Oct 15 70.1°F 68.9°F 68.5°F
Oct 16 70.0°F 67.7°F 68.4°F
Oct 17 69.7°F 67.1°F 68.1°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 69.9°F 36mi
Warsaw 71.5°F 38mi
Baltimore 71.0°F 58mi

* current water temperature in this city

** straight line distance from Long Beach