Monthly Hakodate water temperature chart
The bar chart below shows the average monthly sea temperatures at Hakodate over the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 7.2 | 5.1 | 4.9 | 7.0 | 9.4 | 14.7 | 18.7 | 21.8 | 20.9 | 17.2 | 13.1 | 9.7 |
| °F | 45 | 41.2 | 40.8 | 44.6 | 48.9 | 58.5 | 65.7 | 71.2 | 69.6 | 63 | 55.6 | 49.5 |
Monthly average max / min water temperatures
The graph below shows the range of monthly water temperatures over several years.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min °C | 4.3 | 3.5 | 3.1 | 4.9 | 6 | 10.9 | 16 | 19.9 | 18.4 | 14.8 | 10.4 | 6.3 |
| Max °C | 10.2 | 6.7 | 6.7 | 9.2 | 12.9 | 18.5 | 21.5 | 23.7 | 23.4 | 19.6 | 15.8 | 13.2 |
| Min °F | 42.1 | 39.6 | 39 | 42.5 | 45.5 | 54.7 | 63 | 69.3 | 67.1 | 60.6 | 52.9 | 46.1 |
| Max °F | 48 | 42.8 | 42.6 | 46.8 | 52.4 | 62.3 | 68.5 | 73.1 | 72.1 | 65.4 | 58.3 | 53 |