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Ono Sea Temperature in May

Japan

April Ono year-round → June

Average sea temperature for Ono, Japan across May, based on 10 years of daily readings.

Average

17.61° C

High

20.48° C

Low

14.41° 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.

May is the 7th warmest of 12 months at Ono. On average the water sits 1.1° than the year-round mean of 18.67° C.

Compared to April, May is 3.8° warmer than (13.85° C in April). By June the water is usually 21.33° C.

Ono Day-by-Day Water Temperature in May

10-year low, average and high

13.0° C
15.1° C
17.3° C
19.4° C
21.5° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through May. Range Average

Each vertical bar above is one day of May. 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 Ono.

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.

May Water Temperature Table for Ono

10-year daily averages

Day Average Low High
May 1 15.53° C 14.46° C 17.18° C
May 2 15.72° C 14.71° C 17.64° C
May 3 15.83° C 14.52° C 18.09° C
May 4 16.08° C 14.41° C 18.32° C
May 5 16.28° C 14.41° C 18.32° C
May 6 16.33° C 14.63° C 17.88° C
May 7 16.5° C 15.01° C 17.98° C
May 8 16.5° C 15.16° C 18.06° C
May 9 16.44° C 14.94° C 18.15° C
May 10 16.64° C 15.41° C 18.22° C
May 11 16.68° C 15.62° C 17.76° C
May 12 16.86° C 15.86° C 17.8° C
May 13 17.28° C 16.62° C 17.93° C
May 14 17.47° C 16.71° C 18.2° C
May 15 17.6° C 16.54° C 18.68° C
May 16 17.66° C 16.6° C 18.99° C
May 17 17.82° C 16.77° C 19.07° C
May 18 17.86° C 16.94° C 19.21° C
May 19 17.97° C 17.02° C 19.33° C
May 20 18.03° C 16.89° C 19.41° C
May 21 18.3° C 16.89° C 19.33° C
May 22 18.62° C 16.94° C 19.87° C
May 23 19.12° C 18.06° C 20.34° C
May 24 19.15° C 18.12° C 19.78° C
May 25 19.04° C 18.13° C 19.82° C
May 26 18.99° C 18.07° C 19.74° C
May 27 19.14° C 18.11° C 19.84° C
May 28 19.29° C 18.21° C 20.05° C
May 29 19.52° C 18.69° C 20.38° C
May 30 19.59° C 18.76° C 20.48° C
May 31 19.56° C 18.62° C 20.16° C

Where May Sits in the Year

May highlighted

4.5° C
11.4° C
18.3° C
25.1° C
32.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
11.7° C
9.68° C
10.73° C
13.85° C
17.61° C
21.33° C
25.38° C
27.69° C
26.77° C
23.66° C
19.89° C
15.75° C
10-year monthly history for Ono. 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 May

Compare other Japan water for the same month

Ono Location

34.8532, 134.9315

34.85320, 134.93151 View on OpenStreetMap →

Ono sits at 34.8532°N, 134.9315°E, on the coast of 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 Ono