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Aonae Sea Temperature in April

Hokkaido, Japan

March Aonae year-round → May

Average sea temperature for Aonae, Japan across April, based on 10 years of daily readings.

Average

9.51° C

High

12.04° C

Low

7° C

This water is very cold and can cause pain. We don't recommend you swim in this temperature for anything other than very short swims of 5 to 10 minutes unless you are a very experienced cold water swimmer.

April is the 10th warmest of 12 months at Aonae. On average the water sits 5.3° than the year-round mean of 14.81° C.

Compared to March, April is 1.0° warmer than (8.54° C in March). By May the water is usually 12.08° C.

Aonae Day-by-Day Water Temperature in April

10-year low, average and high

6.0° C
7.8° C
9.5° C
11.3° C
13.0° C
1
5
10
15
20
25
30
Day-by-day low and high band with the 10-year daily average through April. Range Average

Each vertical bar above is one day of April. 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 Aonae.

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.

April Water Temperature Table for Aonae

10-year daily averages

Day Average Low High
April 1 8.78° C 7.51° C 9.68° C
April 2 8.79° C 7.61° C 9.73° C
April 3 8.82° C 7.74° C 9.84° C
April 4 8.74° C 7.31° C 9.51° C
April 5 8.67° C 7° C 9.24° C
April 6 8.96° C 8.33° C 9.63° C
April 7 9.1° C 8.68° C 10° C
April 8 9.08° C 8.44° C 10.04° C
April 9 9.03° C 8.03° C 9.95° C
April 10 9.11° C 7.64° C 10.04° C
April 11 9.17° C 7.33° C 10.38° C
April 12 9.25° C 7.22° C 10.37° C
April 13 9.24° C 7.43° C 10.24° C
April 14 9.21° C 7.66° C 10.45° C
April 15 9.35° C 8.1° C 10.72° C
April 16 9.57° C 8.28° C 10.87° C
April 17 9.66° C 8.36° C 10.84° C
April 18 9.87° C 8.66° C 10.94° C
April 19 9.77° C 8.9° C 11.1° C
April 20 9.81° C 8.97° C 11.04° C
April 21 9.89° C 9.02° C 10.99° C
April 22 9.96° C 9.03° C 11.12° C
April 23 10.24° C 9.26° C 11.18° C
April 24 10.12° C 9.27° C 11.29° C
April 25 10.04° C 9.59° C 11.14° C
April 26 10.18° C 9.02° C 11.38° C
April 27 10.21° C 9.24° C 11.4° C
April 28 10.3° C 9.49° C 11.74° C
April 29 10.32° C 8.92° C 11.95° C
April 30 10.34° C 8.8° C 12.04° C

Where April Sits in the Year

April highlighted

2.5° C
9.3° C
16.0° C
22.8° C
29.5° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
9.87° C
8.8° C
8.54° C
9.51° C
12.08° C
16.42° C
20.98° C
23.68° C
23.24° C
19° C
13.99° C
11.57° C
10-year monthly history for Aonae. 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 April

Compare other Japan water for the same month

Aonae Location

42.0500, 139.4500

42.05000, 139.45000 View on OpenStreetMap →

Aonae sits at 42.0500°N, 139.4500°E, on the coast of Hokkaido, 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 Aonae