Funafuti Sea Temperature

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

Water temperature in Funafuti right now

Below is the current sea temperature for Funafuti, Tuvalu on 25th June 2025.

30.21° C

(86.38° F)

yesterday: 30.04° C (86.07° F)
a week ago: 29.8° C (85.64° F)

Water at this temperature is very warm and you should look to bathe only. Avoid any kind of strenuous swimming as there is a real risk of heat stroke at this temperature.

The average sea temperature for Funafuti on June 25th over the last 10 years is 29.57° C (85.23° F), with a low temperature of 28.91° C (84.04° F) and a high of 30.23° C (86.41° F).

Analysis and forecast for Funafuti water temperatures

The water temperature in Funafuti today is higher than the average temperature of 29.57° C (85.23° F) and the temperature on this day last year, 25th June 2024, was 30.23° C (86.41° F).

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

Date	Temperature (Celsius)	Temperature (Fahrenheit)
June 25	30.21° C	86.38° F
June 24	30.04° C	86.07° F
June 23	29.81° C	85.66° F
June 22	29.86° C	85.75° F
June 21	29.8° C	85.64° F
June 20	29.77° C	85.59° F
June 19	29.77° C	85.59° F
June 18	29.8° C	85.64° F
June 17	29.86° C	85.75° F
June 16	29.54° C	85.17° F
June 15	29.36° C	84.85° F
June 14	29.68° C	85.42° F
June 13	29.63° C	85.33° F
June 12	29.67° C	85.41° F
June 11	29.79° C	85.62° F
June 10	29.77° C	85.59° F
June 9	29.93° C	85.87° F
June 8	30.07° C	86.13° F
June 7	29.92° C	85.86° F
June 6	29.61° C	85.3° F
June 5	29.68° C	85.42° F
June 4	29.7° C	85.46° F
June 3	29.8° C	85.64° F
June 2	29.82° C	85.68° F
June 1	29.78° C	85.6° F
May 31	29.78° C	85.6° F
May 30	29.78° C	85.6° F
May 29	29.99° C	85.98° F
May 28	30.04° C	86.07° F
May 27	30.04° C	86.07° F
May 26	29.95° C	85.91° 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 Funafuti by month

The chart below shows the monthly average water temperature in Funafuti.

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

January February March April May June July August September October November December

Funafuti map and nearby water temperatures

The highest temperature in Tuvalu today is 30.35° C (86.63° F) in Vaitupu. The lowest is in Funafuti, where the temperature of the water is 30.34° C (86.61° F).

Why measure sea surface temperatures (SST) in Funafuti?

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

SST is one measure that provides information on the global climate, and it can be used to predict the weather in Funafuti 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 Funafuti 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.

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