Alofi Sea Temperature

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

Water temperature in Alofi right now

Below is the current sea temperature for Alofi, Niue on 12th July 2025.

26.26° C

(79.27° F)

  • yesterday: 26.34° C (79.42° F)
  • a week ago: 26.16° C (79.09° F)

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

The average sea temperature for Alofi on July 12th over the last 10 years is 26.11° C (78.99° F), with a low temperature of 25.3° C (77.54° F) and a high of 27.27° C (81.09° F).

Analysis and forecast for Alofi water temperatures

The water temperature in Alofi today is higher than the average temperature of 26.11° C (78.99° F) and the temperature on this day last year, 12th July 2024, was 26.28° C (79.3° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
July 12 26.26° C 79.27° F
July 11 26.34° C 79.42° F
July 10 25.98° C 78.76° F
July 9 25.99° C 78.78° F
July 8 26.09° C 78.96° F
July 7 26.06° C 78.91° F
July 6 26.09° C 78.96° F
July 5 26.16° C 79.09° F
July 4 26.3° C 79.34° F
July 3 26.31° C 79.36° F
July 2 26.42° C 79.56° F
July 1 26.59° C 79.86° F
June 30 26.58° C 79.84° F
June 29 26.58° C 79.84° F
June 28 26.44° C 79.59° F
June 27 26.29° C 79.32° F
June 26 26.14° C 79.05° F
June 25 26.05° C 78.89° F
June 24 25.93° C 78.67° F
June 23 25.91° C 78.64° F
June 22 25.78° C 78.4° F
June 21 26° C 78.8° F
June 20 26.04° C 78.87° F
June 19 26.17° C 79.11° F
June 18 26.22° C 79.2° F
June 17 26.18° C 79.12° F
June 16 26.14° C 79.05° F
June 15 26.09° C 78.96° F
June 14 26.1° C 78.98° F
June 13 26.13° C 79.03° F
June 12 26.19° C 79.14° 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 Alofi by month

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

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

Alofi map and nearby water temperatures

Locations near Alofi

The highest temperature in Niue today is 26.62° C (79.92° F) in Alofi. The lowest is in Alofi, where the temperature of the water is 26.62° C (79.92° F).

Why measure sea surface temperatures (SST) in Alofi?

The ocean covers about 71% of the Earth's surface, and scientists record the sea surface temperature (SST) of locations such as Alofi 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 Alofi 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 Alofi 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.

  • "Alofi Sea Temperature". SeaTemperatures.net. Accessed on July 12, 2025. http://seatemperatures.net/australia-and-oceania/niue/alofi/.

  • "Alofi Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/australia-and-oceania/niue/alofi/. Accessed 12 July, 2025

  • Alofi Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/australia-and-oceania/niue/alofi/.