Iburi - Muroran
| Date | 1st (Fri) May | 2nd (Sat) May | |||||||
| Weather |  |
 |
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| Wind | E =>> Slightly The sea E Strong |
N Slightly =>> Strong | |||||||
| Wave | 3 m | 3 m | |||||||
| Temperature (Muroran) |
MAX (different the day before) | --- (---) | 15 C (1) | ||||||
| MIN (different the day before) | --- (---) | 10 C (4) | |||||||
| Probability of Precipitation |
Time | 00-06h | 06-12h | 12-18h | 18-24h | 00-06h | 06-12h | 12-18h | 18-24h |
| % | --- | --- | --- | 90 % | 70 % | 20 % | 10 % | 0 % | |
Update at 17:40 JST
Hidaka - Urakawa
| Date | 1st (Fri) May | 2nd (Sat) May | |||||||
| Weather | |
 |
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| Wind | E Slightly The sea E Strong |
E Slightly =>> W Strong Hidaka eastern part W Very Strong |
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| Wave | 3 m =>> 4 m | 4 m | |||||||
| Temperature (Urakawa) |
MAX (different the day before) | --- (---) | 14 C (-1) | ||||||
| MIN (different the day before) | --- (---) | 9 C (4) | |||||||
| Probability of Precipitation |
Time | 00-06h | 06-12h | 12-18h | 18-24h | 00-06h | 06-12h | 12-18h | 18-24h |
| % | --- | --- | --- | 90 % | 80 % | 30 % | 10 % | 0 % | |
Update at 17:40 JST
Muroran
| Date | 1st | 2nd | 2nd | 2nd | 2nd | 2nd | 2nd | 2nd |
| Time | 21:00 | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 |
| Weather | |
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| Temperature C | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 11.0 |
| Wind Direction | E | E | N | N | N | N | N | N |
| Wind Speed | 10 m/s more | 10 m/s more | 10 m/s more | 10 m/s more | 10 m/s more | 10 m/s more | 10 m/s more | 10 m/s more |
Update at 18:00 JST
Urakawa
| Date | 1st | 2nd | 2nd | 2nd | 2nd | 2nd | 2nd | 2nd |
| Time | 21:00 | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 |
| Weather | |
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| Temperature C | 11.0 | 11.0 | 12.0 | 10.0 | 11.0 | 13.0 | 12.0 | 10.0 |
| Wind Direction | E | E | E | N | W | W | W | W |
| Wind Speed | 10 m/s more | 10 m/s more | 10 m/s more | 10 m/s more | 10 m/s more | 10 m/s more | 10 m/s more | 10 m/s more |
Update at 18:00 JST
IburiHidaka - Muroran
| Date | 3rd (Sun) May | 4th (Mon) May | 5th (Tue) May | 6th (Wed) May | 7th (Thu) May | 8th (Fri) May | |
| Weather |  |
 |
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 |
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| Temperature (Muroran) |
Max | 16 | 13 | 15 | 17 | 17 | 17 |
| Min | 8 | 8 | 7 | 8 | 9 | 9 | |
| Temperature climatic normal |
Max | 13.2 | 13.3 | 13.5 | 13.6 | 13.7 | 13.7 |
| Min | 5.7 | 5.9 | 6.0 | 6.1 | 6.3 | 6.4 | |
| POP | 50 % | 70 % | 30 % | 20 % | 30 % | 30 % | |
Update at 17:27 JST
Details is here