Oshima - Hakodate
| Date | 20th (Sat) Dec | 21st (Sun) Dec | |||||||
| Weather |  |
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| Wind | SW =>> Slightly | SW Slightly =>> W 渡島western part beginning SW Strong | |||||||
| Wave | 3 m | 3 m =>> 2 m | |||||||
| Temperature (Hakodate) |
MAX (different the day before) | 10 C (5) | 9 C (-1) | ||||||
| MIN (different the day before) | --- (---) | 9 C (1) | |||||||
| Probability of Precipitation |
Time | 00-06h | 06-12h | 12-18h | 18-24h | 00-06h | 06-12h | 12-18h | 18-24h |
| % | --- | --- | 40 % | 80 % | 90 % | 80 % | 30 % | 20 % | |
Update at 11:40 JST
Hiyama - Esashi
| Date | 20th (Sat) Dec | 21st (Sun) Dec | |||||||
| Weather | |
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| Wind | SW =>> Slightly | SW Slightly =>> NW Slightly | |||||||
| Wave | 3 m | 3 m =>> 2 m | |||||||
| Temperature (Esashi) |
MAX (different the day before) | 12 C (5) | 7 C (-5) | ||||||
| MIN (different the day before) | --- (---) | 7 C (-3) | |||||||
| Probability of Precipitation |
Time | 00-06h | 06-12h | 12-18h | 18-24h | 00-06h | 06-12h | 12-18h | 18-24h |
| % | --- | --- | 40 % | 80 % | 90 % | 80 % | 20 % | 20 % | |
Update at 11:40 JST
Hakodate
| Date | 20th | 20th | 20th | 21st | 21st | 21st | 21st | 21st |
| Time | 15:00 | 18:00 | 21:00 | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 |
| Weather |  |
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| Temperature C | 9.0 | 9.0 | 11.0 | 12.0 | 12.0 | 12.0 | 9.0 | 6.0 |
| Wind Direction | SW | SW | SW | SW | SW | W | W | W |
| Wind Speed | 6 - 9 m/s | 6 - 9 m/s | 6 - 9 m/s | 10 m/s more | 10 m/s more | 10 m/s more | 6 - 9 m/s | 6 - 9 m/s |
Update at 12:00 JST
Esashi
| Date | 20th | 20th | 20th | 21st | 21st | 21st | 21st | 21st |
| Time | 15:00 | 18:00 | 21:00 | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 |
| Weather | |
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| Temperature C | 10.0 | 11.0 | 12.0 | 13.0 | 12.0 | 10.0 | 7.0 | 6.0 |
| Wind Direction | SW | SW | SW | SW | SW | W | NW | NW |
| Wind Speed | 6 - 9 m/s | 6 - 9 m/s | 6 - 9 m/s | 10 m/s more | 10 m/s more | 6 - 9 m/s | 6 - 9 m/s | 10 m/s more |
Update at 12:00 JST
OshimaHiyama - Hakodate
| Date | 22nd (Mon) Dec | 23rd (Tue) Dec | 24th (Wed) Dec | 25th (Thu) Dec | 26th (Fri) Dec | 27th (Sat) Dec | |
| Weather |  |
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| Temperature (Hakodate) |
Max | 2 | 4 | 7 | 5 | 0 | 0 |
| Min | -4 | -4 | 0 | -3 | -5 | -5 | |
| Temperature climatic normal |
Max | 2.4 | 2.4 | 2.3 | 2.2 | 2.1 | 2.1 |
| Min | -4.2 | -4.3 | -4.4 | -4.4 | -4.5 | -4.6 | |
| POP | 30 % | 30 % | 70 % | 60 % | 50 % | 50 % | |
Update at 11:27 JST
Details is here