The measurements for the water temperature in Tomakomai, Hokkaidō are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.
The graph below shows the range of monthly Tomakomai water temperature derived from many years of historical sea surface temperature data.
Maximum and minimum monthly sea temperatures in Tomakomai
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Min °C
1.4
0.9
1.2
2.8
3.9
9.7
14.7
19
17.8
14.2
9.7
4.9
Max °C
8.7
4.9
4.5
7.4
12.2
17.5
20.3
22.7
22.4
18.6
15.5
11.8
Min °F
37.4
35.2
35.4
38.9
42.3
52.6
60.7
67.6
65.9
59.3
51.8
43.5
Max °F
44.7
39.2
38.7
43.5
50.6
60.4
66.3
71.3
70.5
63.7
57.6
50.4
7 day tide forecast for Tomakomai
Sat
Sun
Mon
Tue
Wed
Thu
Fri
High 12:47am (1.22m)
Low 07:50am (0.40m)
High 02:51pm (1.26m)
Low 08:12pm (0.77m)
High 01:37am (1.28m)
Low 08:24am (0.37m)
High 03:11pm (1.30m)
Low 08:43pm (0.67m)
High 02:19am (1.34m)
Low 08:53am (0.35m)
High 03:26pm (1.33m)
Low 09:12pm (0.58m)
High 02:57am (1.38m)
Low 09:21am (0.36m)
High 03:40pm (1.35m)
Low 09:41pm (0.49m)
High 03:34am (1.40m)
Low 09:49am (0.40m)
High 03:58pm (1.37m)
Low 10:11pm (0.40m)
High 04:12am (1.39m)
Low 10:17am (0.46m)
High 04:20pm (1.39m)
Low 10:43pm (0.33m)
High 04:52am (1.36m)
Low 10:46am (0.54m)
High 04:44pm (1.40m)
Low 11:17pm (0.28m)
*These tide times are estimates based on the nearest port (Tomakomai, Hokkaido) and may differ by up to half and hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.
These average ocean temperatures for Tomakomai are calculated from several years of archived data.
Map showing location of Tomakomai (42.636940, 141.603330)
Variations
Whilst sea temperatures for Tomakomai are as accurate as current data allows, there may be slight local and regional variations depending on conditions. Time of day and wind direction may have a temporary local effect as can water flows from neraby rivers.
