Honiara Sea Temperature

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

Water temperature in Honiara right now

Below is the current sea temperature for Honiara, Solomon Islands on 2nd July 2025.

29.6° C

(85.28° F)

  • yesterday: 29.65° C (85.37° F)
  • a week ago: 28.89° C (84° 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 Honiara on July 2nd over the last 10 years is 29.15° C (84.48° F), with a low temperature of 28.61° C (83.5° F) and a high of 30.15° C (86.27° F).

Analysis and forecast for Honiara water temperatures

The water temperature in Honiara today is higher than the average temperature of 29.15° C (84.48° F) and the temperature on this day last year, 2nd July 2024, was 29.63° C (85.33° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
July 2 29.6° C 85.28° F
July 1 29.65° C 85.37° F
June 30 29.3° C 84.74° F
June 29 29.68° C 85.42° F
June 28 29.7° C 85.46° F
June 27 29.61° C 85.3° F
June 26 29.39° C 84.9° F
June 25 28.89° C 84° F
June 24 29.06° C 84.31° F
June 23 29.31° C 84.76° F
June 22 29.32° C 84.78° F
June 21 29.44° C 84.99° F
June 20 29.47° C 85.05° F
June 19 29.37° C 84.87° F
June 18 29.77° C 85.59° F
June 17 30.12° C 86.22° F
June 16 29.9° C 85.82° F
June 15 29.98° C 85.96° F
June 14 29.85° C 85.73° F
June 13 29.75° C 85.55° F
June 12 29.88° C 85.78° F
June 11 29.9° C 85.82° F
June 10 29.79° C 85.62° F
June 9 29.73° C 85.51° F
June 8 29.52° C 85.14° F
June 7 29.78° C 85.6° F
June 6 29.77° C 85.59° F
June 5 29.71° C 85.48° F
June 4 29.86° C 85.75° F
June 3 29.83° C 85.69° F
June 2 29.84° C 85.71° 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 Honiara by month

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

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

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

Honiara map and nearby water temperatures

The highest temperature in Solomon Islands today is 30.1° C (86.18° F) in Buala. The lowest is in Santa Cruz Islands, where the temperature of the water is 29.2° C (84.56° F).

Why measure sea surface temperatures (SST) in Honiara?

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

  • "Honiara Sea Temperature". SeaTemperatures.net. Accessed on July 2, 2025. http://seatemperatures.net/australia-and-oceania/solomon-islands/honiara/.

  • "Honiara Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/australia-and-oceania/solomon-islands/honiara/. Accessed 2 July, 2025

  • Honiara Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/australia-and-oceania/solomon-islands/honiara/.