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Arniston Sea Temperature in October

South Africa

September Arniston year-round → November

Average sea temperature for Arniston, South Africa across October, based on 10 years of daily readings.

Average

16.92° C

High

18.94° C

Low

15.11° C

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

October is the 8th warmest of 12 months at Arniston. On average the water sits 1.2° than the year-round mean of 18.08° C.

Compared to September, October is 1.4° warmer than (15.49° C in September). By November the water is usually 18.55° C.

Arniston Day-by-Day Water Temperature in October

10-year low, average and high

14.5° C
15.9° C
17.3° C
18.6° C
20.0° 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 Arniston.

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 Arniston

10-year daily averages

Day Average Low High
October 1 16.06° C 15.24° C 17.01° C
October 2 16.05° C 15.2° C 17.21° C
October 3 16.03° C 15.11° C 17.2° C
October 4 16.11° C 15.16° C 17.45° C
October 5 16.26° C 15.44° C 17.52° C
October 6 16.3° C 15.6° C 17.53° C
October 7 16.34° C 15.69° C 17.69° C
October 8 16.45° C 15.79° C 17.62° C
October 9 16.5° C 15.75° C 17.49° C
October 10 16.58° C 15.78° C 17.53° C
October 11 16.59° C 15.71° C 17.64° C
October 12 16.69° C 15.88° C 17.98° C
October 13 16.76° C 15.95° C 17.85° C
October 14 16.73° C 15.98° C 17.92° C
October 15 16.75° C 16.1° C 18.15° C
October 16 16.8° C 15.93° C 18.44° C
October 17 16.86° C 15.96° C 18.59° C
October 18 17.02° C 16.34° C 18.6° C
October 19 17.12° C 16.3° C 18.54° C
October 20 17.14° C 16.36° C 17.95° C
October 21 17.19° C 16.57° C 17.94° C
October 22 17.39° C 16.61° C 18.08° C
October 23 17.55° C 16.68° C 18.38° C
October 24 17.68° C 16.66° C 18.69° C
October 25 17.75° C 16.48° C 18.94° C
October 26 17.72° C 16.43° C 18.73° C
October 27 17.73° C 16.46° C 18.6° C
October 28 17.57° C 16.62° C 18.53° C
October 29 17.57° C 16.87° C 18.69° C
October 30 17.62° C 16.59° C 18.72° C
October 31 17.68° C 16.48° C 18.55° C

Where October Sits in the Year

October highlighted

12.0° C
15.1° C
18.3° C
21.4° C
24.5° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
21.13° C
21.59° C
20.59° C
18.88° C
17.36° C
16.15° C
15.29° C
15.02° C
15.49° C
16.92° C
18.55° C
20° C
10-year monthly history for Arniston. 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 South Africa water for the same month

Arniston Location

-34.6820, 20.2266

-34.68195, 20.22663 View on OpenStreetMap →

Arniston sits at -34.6820°N, 20.2266°E, on the coast of South Africa. 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 Arniston