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Tomari Sea Temperature in October

Aomori, Japan

September Tomari year-round → November

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

Average

19.51° C

High

23° C

Low

16.8° 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 3rd warmest of 12 months at Tomari. On average the water sits 4.9° than the year-round mean of 14.62° C.

Compared to September, October is 3.4° cooler than (22.91° C in September). By November the water is usually 15.79° C.

Tomari Day-by-Day Water Temperature in October

10-year low, average and high

15.5° C
17.6° C
19.8° C
21.9° C
24.0° 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 Tomari.

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 Tomari

10-year daily averages

Day Average Low High
October 1 21.75° C 21.12° C 23° C
October 2 21.66° C 20.88° C 22.89° C
October 3 21.45° C 20.57° C 22.83° C
October 4 21.37° C 20.52° C 22.76° C
October 5 21.14° C 20.35° C 22.65° C
October 6 21.09° C 20.35° C 22.7° C
October 7 20.96° C 20.12° C 22.53° C
October 8 20.63° C 19.9° C 22.46° C
October 9 20.43° C 19.18° C 22.4° C
October 10 20.29° C 19.13° C 22.38° C
October 11 20.3° C 18.96° C 22.31° C
October 12 19.94° C 18.77° C 20.9° C
October 13 19.79° C 18.53° C 20.72° C
October 14 19.64° C 18.51° C 20.48° C
October 15 19.46° C 18.42° C 20.23° C
October 16 19.3° C 18.2° C 20.03° C
October 17 19.24° C 18.16° C 20.09° C
October 18 19.15° C 18.12° C 20° C
October 19 18.96° C 18.04° C 19.84° C
October 20 18.81° C 17.81° C 19.95° C
October 21 18.6° C 17.72° C 19.81° C
October 22 18.54° C 17.75° C 19.74° C
October 23 18.5° C 17.46° C 19.6° C
October 24 18.42° C 17.04° C 19.39° C
October 25 18.24° C 16.88° C 19.11° C
October 26 18.04° C 16.83° C 18.77° C
October 27 17.91° C 17.12° C 18.52° C
October 28 17.92° C 17.28° C 18.55° C
October 29 17.88° C 17.42° C 18.61° C
October 30 17.77° C 17.13° C 18.7° C
October 31 17.56° C 16.8° C 18.66° C

Where October Sits in the Year

October highlighted

1.5° C
8.5° C
15.5° C
22.5° C
29.5° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
10.5° C
9.18° C
8.21° C
9° C
10.88° C
14.45° C
19.2° C
22.9° C
22.91° C
19.51° C
15.79° C
12.93° C
10-year monthly history for Tomari. 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

Tomari Location

41.1000, 141.3830

41.10000, 141.38300 View on OpenStreetMap →

Tomari sits at 41.1000°N, 141.3830°E, on the coast of Aomori, 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 Tomari