31 (火)	07:04	00:48	18:42	12:40
	85cm	43cm	90cm	57cm
小潮 出 06:56 入 15:53 出 10:29 入 23:43

コイセボイ（北海道）2030年12月31日の10分毎の潮の高低差を確認できます。
また1日の潮の高低差が1番大きい（潮の流れが大きい）時間に「最大潮位差」と明記してます。

時刻	潮位	高低差	各ポイント
12/31 00:00	44.6	↓-0.8
12/31 00:10	43.9	↓-0.7
12/31 00:20	43.4	↓-0.5
12/31 00:30	43.1	↓-0.3
12/31 00:40	42.9	↓-0.2	干潮
12/31 00:50	42.9	0
12/31 01:00	43.0	↑0.1
12/31 01:10	43.3	↑0.3
12/31 01:20	43.7	↑0.4
12/31 01:30	44.3	↑0.6
12/31 01:40	45.1	↑0.8
12/31 01:50	45.9	↑0.8
12/31 02:00	46.9	↑1.0
12/31 02:10	48.0	↑1.1
12/31 02:20	49.2	↑1.2
12/31 02:30	50.6	↑1.4
12/31 02:40	52.0	↑1.4
12/31 02:50	53.5	↑1.5
12/31 03:00	55.0	↑1.5
12/31 03:10	56.6	↑1.6
12/31 03:20	58.3	↑1.7	最大潮位差
12/31 03:30	60.0	↑1.7	最大潮位差
12/31 03:40	61.7	↑1.7	最大潮位差
12/31 03:50	63.4	↑1.7	最大潮位差
12/31 04:00	65.1	↑1.7	最大潮位差
12/31 04:10	66.8	↑1.7	最大潮位差
12/31 04:20	68.5	↑1.7	最大潮位差
12/31 04:30	70.2	↑1.7	最大潮位差
12/31 04:40	71.7	↑1.5
12/31 04:50	73.3	↑1.6
12/31 05:00	74.7	↑1.4
12/31 05:10	76.1	↑1.4
12/31 05:20	77.4	↑1.3
12/31 05:30	78.6	↑1.2
12/31 05:40	79.7	↑1.1
12/31 05:50	80.7	↑1.0
12/31 06:00	81.5	↑0.8
12/31 06:10	82.3	↑0.8
12/31 06:20	82.9	↑0.6
12/31 06:30	83.4	↑0.5
12/31 06:40	83.7	↑0.3
12/31 06:50	84.0	↑0.3
12/31 07:00	84.1	↑0.1	満潮
12/31 07:10	84.0	↓-0.1
12/31 07:20	83.9	↓-0.1
12/31 07:30	83.6	↓-0.3
12/31 07:40	83.2	↓-0.4
12/31 07:50	82.7	↓-0.5
12/31 08:00	82.1	↓-0.6
12/31 08:10	81.4	↓-0.7
12/31 08:20	80.5	↓-0.9
12/31 08:30	79.6	↓-0.9
12/31 08:40	78.6	↓-1.0
12/31 08:50	77.6	↓-1.0
12/31 09:00	76.5	↓-1.1
12/31 09:10	75.3	↓-1.2
12/31 09:20	74.1	↓-1.2
12/31 09:30	72.9	↓-1.2
12/31 09:40	71.6	↓-1.3
12/31 09:50	70.3	↓-1.3
12/31 10:00	69.1	↓-1.2
12/31 10:10	67.8	↓-1.3
12/31 10:20	66.6	↓-1.2
12/31 10:30	65.4	↓-1.2
12/31 10:40	64.3	↓-1.1
12/31 10:50	63.2	↓-1.1
12/31 11:00	62.1	↓-1.1
12/31 11:10	61.2	↓-0.9
12/31 11:20	60.3	↓-0.9
12/31 11:30	59.5	↓-0.8
12/31 11:40	58.8	↓-0.7
12/31 11:50	58.2	↓-0.6
12/31 12:00	57.7	↓-0.5
12/31 12:10	57.3	↓-0.4
12/31 12:20	57.0	↓-0.3
12/31 12:30	56.8	↓-0.2	干潮
12/31 12:40	56.8	0	干潮
12/31 12:50	56.9	↑0.1
12/31 13:00	57.1	↑0.2
12/31 13:10	57.4	↑0.3
12/31 13:20	57.8	↑0.4
12/31 13:30	58.3	↑0.5
12/31 13:40	59.0	↑0.7
12/31 13:50	59.7	↑0.7
12/31 14:00	60.6	↑0.9
12/31 14:10	61.5	↑0.9
12/31 14:20	62.5	↑1.0
12/31 14:30	63.6	↑1.1
12/31 14:40	64.8	↑1.2
12/31 14:50	66.1	↑1.3
12/31 15:00	67.4	↑1.3
12/31 15:10	68.7	↑1.3
12/31 15:20	70.1	↑1.4
12/31 15:30	71.5	↑1.4
12/31 15:40	72.9	↑1.4
12/31 15:50	74.3	↑1.4
12/31 16:00	75.7	↑1.4
12/31 16:10	77.1	↑1.4
12/31 16:20	78.4	↑1.3
12/31 16:30	79.8	↑1.4
12/31 16:40	81.0	↑1.2
12/31 16:50	82.2	↑1.2
12/31 17:00	83.4	↑1.2
12/31 17:10	84.4	↑1.0
12/31 17:20	85.4	↑1.0
12/31 17:30	86.3	↑0.9
12/31 17:40	87.1	↑0.8
12/31 17:50	87.8	↑0.7
12/31 18:00	88.3	↑0.5
12/31 18:10	88.8	↑0.5
12/31 18:20	89.1	↑0.3
12/31 18:30	89.3	↑0.2
12/31 18:40	89.4	↑0.1	満潮
12/31 18:50	89.4	0
12/31 19:00	89.2	↓-0.2
12/31 19:10	88.9	↓-0.3
12/31 19:20	88.4	↓-0.5
12/31 19:30	87.9	↓-0.5
12/31 19:40	87.2	↓-0.7
12/31 19:50	86.4	↓-0.8
12/31 20:00	85.5	↓-0.9
12/31 20:10	84.5	↓-1.0
12/31 20:20	83.4	↓-1.1
12/31 20:30	82.2	↓-1.2
12/31 20:40	80.9	↓-1.3
12/31 20:50	79.5	↓-1.4
12/31 21:00	78.0	↓-1.5
12/31 21:10	76.5	↓-1.5
12/31 21:20	75.0	↓-1.5
12/31 21:30	73.4	↓-1.6
12/31 21:40	71.8	↓-1.6
12/31 21:50	70.2	↓-1.6
12/31 22:00	68.5	↓-1.7	最大潮位差
12/31 22:10	66.9	↓-1.6
12/31 22:20	65.3	↓-1.6
12/31 22:30	63.7	↓-1.6
12/31 22:40	62.1	↓-1.6
12/31 22:50	60.6	↓-1.5
12/31 23:00	59.1	↓-1.5
12/31 23:10	57.8	↓-1.3
12/31 23:20	56.4	↓-1.4
12/31 23:30	55.2	↓-1.2
12/31 23:40	54.1	↓-1.1
12/31 23:50	53.0	↓-1.1