Lake Almanor Sea Temperature

Looking to find out what the sea water temperature in Lake Almanor is for today and the next few days? Below are data and charts that will give you information about sea temperatures in Lake Almanor and nearby locations.

Water temperature in Lake Almanor right now

Below is the current sea temperature for Lake Almanor, United States on January 10, 2026.

Today

Yesterday

A week ago

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a very big risk.

The average sea temperature for Lake Almanor on January 10 over the last 10 years is 11.99° C (53.58° F), with a low temperature of 11.05° C (51.89° F) and a high of 12.7° C (54.86° F).

Analysis and forecast for Lake Almanor water temperatures

The water temperature in Lake Almanor today is the same as the average temperature of 11.99° C (53.58° F) and the temperature on this day last year was 11.99° C (53.58° F).

The chart and table below shows the change in water temperature in Lake Almanor over the last 30 days:

DateTemperature (Celsius)Temperature (Fahrenheit)
January 1011.99° C53.58° F
January 912.09° C53.76° F
January 812.07° C53.73° F
January 712.1° C53.78° F
January 611.99° C53.59° F
January 511.92° C53.46° F
January 411.82° C53.27° F
January 311.74° C53.13° F
January 211.68° C53.02° F
January 111.66° C52.99° F
December 3111.75° C53.16° F
December 3011.88° C53.39° F
December 2911.92° C53.46° F
December 2811.88° C53.38° F
December 2711.91° C53.44° F
December 2611.86° C53.34° F
December 2511.89° C53.39° F
December 2411.93° C53.48° F
December 2311.96° C53.53° F
December 2212.02° C53.64° F
December 2112.06° C53.72° F
December 2012.08° C53.74° F
December 1912.08° C53.75° F
December 1812.06° C53.71° F
December 1712.06° C53.71° F
December 1612.09° C53.76° F
December 1512.07° C53.72° F
December 1412.08° C53.75° F
December 1312.14° C53.85° F
December 1212.15° C53.88° F

The actual nearshore temperatures may vary by several degrees and this can also be heavily affected by weather. Strong winds can cause cold, deep waters to replace the surface waters that had been warmed by the sun, and heavy rain can also reduce the temperature of the sea surface temperature as well.

Water temperature in Lake Almanor by month

The chart below shows the monthly average water temperature in Lake Almanor.

For more detailed information on how the sea temperature in Lake Almanor changes for each month of the year, choose from the months below.

Lake Almanor map and nearby water temperatures

Lake Almanor sea temperature map

Locations near Lake Almanor

Why measure sea surface temperatures (SST) in Lake Almanor?

The ocean covers about 71% of the Earth's surface, and scientists record the sea surface temperature (SST) of locations such as Lake Almanor because they want to understand and learn how the ocean communicates with the atmosphere of Earth.

SST is one measure that provides information on the global climate, and it can be used to predict the weather in Lake Almanor as well as atmospheric model simulations and to study marine ecosystems in the area.

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Lake Almanor comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.

The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.

If you'd like to use any of the information above in the format it is presented, please use the citation tool below.