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Rarotonga (Avarua Harbour) Sea Temperature in October

Avarua, Cook Islands

September Rarotonga (Avarua Harbour) year-round → November

Average sea temperature for Rarotonga (Avarua Harbour), Cook Islands across October, based on 10 years of daily readings.

Average

25° C

High

26.77° C

Low

23.94° C

Water at this temperature is very pleasant to swim in. If you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

October is the 10th warmest of 12 months at Rarotonga (Avarua Harbour). On average the water sits 1.3° than the year-round mean of 26.3° C.

Compared to September, October is 0.2° about the same as (24.75° C in September). By November the water is usually 25.23° C.

Rarotonga (Avarua Harbour) Day-by-Day Water Temperature in October

10-year low, average and high

23.0° C
24.1° C
25.3° C
26.4° C
27.5° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through October. Range Average

Each vertical bar above is one day of October. The shaded band covers the range the water has reached on that day across the last 10 years — the lowest reading at the bottom, the highest at the top. The line running through the bars is the daily average over those 10 years, so you can see the typical shape of the month at Rarotonga (Avarua Harbour).

A narrow band means the temperature on that day has stayed close to the average year on year. A taller band means it has swung more, often because of changeable weather around that time of year. Hovering a day pulls up its low, average, and high.

October Water Temperature Table for Rarotonga (Avarua Harbour)

10-year daily averages

Day Average Low High
October 1 24.76° C 24.09° C 25.56° C
October 2 24.85° C 24.01° C 25.89° C
October 3 24.81° C 23.94° C 25.83° C
October 4 24.76° C 23.96° C 25.79° C
October 5 24.73° C 24.12° C 25.81° C
October 6 24.68° C 24.15° C 25.43° C
October 7 24.69° C 24.17° C 25.57° C
October 8 24.8° C 24.21° C 25.74° C
October 9 24.9° C 24.29° C 25.74° C
October 10 24.87° C 24.2° C 25.7° C
October 11 24.87° C 24.36° C 25.62° C
October 12 24.85° C 24.39° C 25.54° C
October 13 24.93° C 24.63° C 25.6° C
October 14 25° C 24.66° C 25.73° C
October 15 25.17° C 24.86° C 26.35° C
October 16 25.26° C 24.75° C 26.61° C
October 17 25.28° C 24.69° C 26.77° C
October 18 25.2° C 24.68° C 26.23° C
October 19 25.14° C 24.67° C 26° C
October 20 25.12° C 24.61° C 26.05° C
October 21 25.17° C 24.54° C 25.87° C
October 22 25.22° C 24.6° C 26.05° C
October 23 25.17° C 24.72° C 25.93° C
October 24 25.13° C 24.62° C 25.83° C
October 25 25.12° C 24.56° C 25.72° C
October 26 25.17° C 24.45° C 25.94° C
October 27 25.15° C 24.32° C 25.94° C
October 28 25.07° C 24.32° C 25.8° C
October 29 24.99° C 24.38° C 25.71° C
October 30 24.97° C 24.09° C 25.78° C
October 31 25.07° C 24.55° C 25.95° C

Where October Sits in the Year

October highlighted

22.5° C
24.5° C
26.5° C
28.5° C
30.5° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
27.29° C
28.1° C
28.35° C
27.93° C
26.97° C
25.89° C
25.18° C
24.61° C
24.75° C
25° C
25.23° C
26.31° C
10-year monthly history for Rarotonga (Avarua Harbour). Bars span historical low to high; the line marks the monthly average. Range Average
January → February → March → April → May → June → July → August → September → October → November → December →

Nearby Locations in October

Compare other Cook Islands water for the same month

Rarotonga (Avarua Harbour) Location

-21.2000, -159.7833

-21.20000, -159.78330 View on OpenStreetMap →

Rarotonga (Avarua Harbour) sits at -21.2000°N, 159.7833°W, on the coast of Avarua, Cook Islands. The marker on the map shows the spot the readings on this page come from. It usually sits a short distance from the town centre, out on the open water itself, so the numbers stay tied to the coast rather than a generic point inland.

Coastlines bend, headlands focus the water, and the temperature can run noticeably differently between two beaches that look close together on a map. Comparing nearby locations is a quick way to see how local geography is shaping the readings.

Nearest locations to Rarotonga (Avarua Harbour)