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Isso Sea Temperature in October

Kagoshima, Japan

September Isso year-round → November

Average sea temperature for Isso, Japan across October, based on 10 years of daily readings.

Average

27.15° C

High

29.58° C

Low

24.96° C

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.

October is the 4th warmest of 12 months at Isso. On average the water sits 2.6° than the year-round mean of 24.56° C.

Compared to September, October is 1.4° cooler than (28.57° C in September). By November the water is usually 24.71° C.

Isso Day-by-Day Water Temperature in October

10-year low, average and high

24.0° C
25.6° C
27.3° C
28.9° C
30.5° 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 Isso.

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 Isso

10-year daily averages

Day Average Low High
October 1 28.17° C 27.4° C 29.58° C
October 2 28.09° C 27.23° C 29.58° C
October 3 28.01° C 27.19° C 29.52° C
October 4 27.99° C 27.11° C 29.51° C
October 5 27.98° C 27.06° C 29.42° C
October 6 27.99° C 27.12° C 29.25° C
October 7 27.96° C 26.96° C 29.09° C
October 8 27.73° C 26.91° C 28.92° C
October 9 27.58° C 26.44° C 28.82° C
October 10 27.49° C 26.29° C 28.8° C
October 11 27.42° C 26.02° C 28.79° C
October 12 27.36° C 25.91° C 28.72° C
October 13 27.33° C 25.96° C 28.72° C
October 14 27.29° C 26.02° C 28.74° C
October 15 27.31° C 26.39° C 28.87° C
October 16 27.29° C 26.33° C 28.86° C
October 17 27.19° C 26.27° C 28.73° C
October 18 27.08° C 26.07° C 28.67° C
October 19 26.94° C 26.06° C 28.55° C
October 20 26.86° C 25.97° C 28.49° C
October 21 26.88° C 25.74° C 28.83° C
October 22 26.79° C 25.66° C 28.17° C
October 23 26.66° C 25.52° C 28° C
October 24 26.57° C 25.51° C 27.94° C
October 25 26.42° C 25.52° C 27.92° C
October 26 26.41° C 25.55° C 27.92° C
October 27 26.44° C 25.52° C 27.88° C
October 28 26.35° C 25.42° C 27.8° C
October 29 26.27° C 25.23° C 27.41° C
October 30 26.03° C 25.08° C 27.2° C
October 31 25.91° C 24.96° C 26.95° C

Where October Sits in the Year

October highlighted

14.0° C
18.8° C
23.5° C
28.3° C
33.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
21.31° C
19.97° C
20.99° C
22.12° C
23.91° C
25.92° C
28.18° C
29.11° C
28.57° C
27.15° C
24.71° C
22.81° C
10-year monthly history for Isso. 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 Japan water for the same month

Isso Location

30.4667, 130.5000

30.46670, 130.50000 View on OpenStreetMap →

Isso sits at 30.4667°N, 130.5000°E, on the coast of Kagoshima, Japan. 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 Isso