20 (火)	07:20	01:00	18:32	12:16
	78cm	39cm	95cm	60cm
小潮 出 06:52 入 15:46 出 10:31 入 22:43

コイセボイ（北海道）2050年12月20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
12/20 00:00	41.1	↓-1.0
12/20 00:10	40.2	↓-0.9
12/20 00:20	39.5	↓-0.7
12/20 00:30	39.0	↓-0.5
12/20 00:40	38.6	↓-0.4
12/20 00:50	38.4	↓-0.2	干潮
12/20 01:00	38.3	↓-0.1	干潮
12/20 01:10	38.4	↑0.1
12/20 01:20	38.7	↑0.3
12/20 01:30	39.1	↑0.4
12/20 01:40	39.6	↑0.5
12/20 01:50	40.3	↑0.7
12/20 02:00	41.1	↑0.8
12/20 02:10	42.1	↑1.0
12/20 02:20	43.1	↑1.0
12/20 02:30	44.3	↑1.2
12/20 02:40	45.6	↑1.3
12/20 02:50	46.9	↑1.3
12/20 03:00	48.3	↑1.4
12/20 03:10	49.8	↑1.5
12/20 03:20	51.4	↑1.6
12/20 03:30	53.0	↑1.6
12/20 03:40	54.6	↑1.6
12/20 03:50	56.2	↑1.6
12/20 04:00	57.9	↑1.7
12/20 04:10	59.5	↑1.6
12/20 04:20	61.1	↑1.6
12/20 04:30	62.7	↑1.6
12/20 04:40	64.3	↑1.6
12/20 04:50	65.8	↑1.5
12/20 05:00	67.3	↑1.5
12/20 05:10	68.7	↑1.4
12/20 05:20	70.0	↑1.3
12/20 05:30	71.2	↑1.2
12/20 05:40	72.3	↑1.1
12/20 05:50	73.4	↑1.1
12/20 06:00	74.3	↑0.9
12/20 06:10	75.2	↑0.9
12/20 06:20	75.9	↑0.7
12/20 06:30	76.5	↑0.6
12/20 06:40	77.0	↑0.5
12/20 06:50	77.4	↑0.4
12/20 07:00	77.7	↑0.3
12/20 07:10	77.8	↑0.1	満潮
12/20 07:20	77.9	↑0.1	満潮
12/20 07:30	77.8	↓-0.1
12/20 07:40	77.6	↓-0.2
12/20 07:50	77.4	↓-0.2
12/20 08:00	77.0	↓-0.4
12/20 08:10	76.5	↓-0.5
12/20 08:20	76.0	↓-0.5
12/20 08:30	75.3	↓-0.7
12/20 08:40	74.6	↓-0.7
12/20 08:50	73.9	↓-0.7
12/20 09:00	73.1	↓-0.8
12/20 09:10	72.2	↓-0.9
12/20 09:20	71.3	↓-0.9
12/20 09:30	70.4	↓-0.9
12/20 09:40	69.5	↓-0.9
12/20 09:50	68.5	↓-1.0
12/20 10:00	67.6	↓-0.9
12/20 10:10	66.7	↓-0.9
12/20 10:20	65.8	↓-0.9
12/20 10:30	64.9	↓-0.9
12/20 10:40	64.1	↓-0.8
12/20 10:50	63.4	↓-0.7
12/20 11:00	62.6	↓-0.8
12/20 11:10	62.0	↓-0.6
12/20 11:20	61.4	↓-0.6
12/20 11:30	61.0	↓-0.4
12/20 11:40	60.6	↓-0.4
12/20 11:50	60.3	↓-0.3
12/20 12:00	60.1	↓-0.2
12/20 12:10	60.0	↓-0.1	干潮
12/20 12:20	60.0	0
12/20 12:30	60.1	↑0.1
12/20 12:40	60.3	↑0.2
12/20 12:50	60.6	↑0.3
12/20 13:00	61.0	↑0.4
12/20 13:10	61.6	↑0.6
12/20 13:20	62.2	↑0.6
12/20 13:30	63.0	↑0.8
12/20 13:40	63.8	↑0.8
12/20 13:50	64.7	↑0.9
12/20 14:00	65.7	↑1.0
12/20 14:10	66.8	↑1.1
12/20 14:20	68.0	↑1.2
12/20 14:30	69.2	↑1.2
12/20 14:40	70.5	↑1.3
12/20 14:50	71.9	↑1.4
12/20 15:00	73.3	↑1.4
12/20 15:10	74.7	↑1.4
12/20 15:20	76.1	↑1.4
12/20 15:30	77.6	↑1.5
12/20 15:40	79.0	↑1.4
12/20 15:50	80.5	↑1.5
12/20 16:00	81.9	↑1.4
12/20 16:10	83.3	↑1.4
12/20 16:20	84.6	↑1.3
12/20 16:30	85.9	↑1.3
12/20 16:40	87.2	↑1.3
12/20 16:50	88.3	↑1.1
12/20 17:00	89.4	↑1.1
12/20 17:10	90.4	↑1.0
12/20 17:20	91.3	↑0.9
12/20 17:30	92.1	↑0.8
12/20 17:40	92.8	↑0.7
12/20 17:50	93.4	↑0.6
12/20 18:00	93.9	↑0.5
12/20 18:10	94.2	↑0.3
12/20 18:20	94.4	↑0.2
12/20 18:30	94.5	↑0.1	満潮
12/20 18:40	94.5	0
12/20 18:50	94.3	↓-0.2
12/20 19:00	93.9	↓-0.4
12/20 19:10	93.5	↓-0.4
12/20 19:20	92.9	↓-0.6
12/20 19:30	92.2	↓-0.7
12/20 19:40	91.3	↓-0.9
12/20 19:50	90.3	↓-1.0
12/20 20:00	89.3	↓-1.0
12/20 20:10	88.1	↓-1.2
12/20 20:20	86.7	↓-1.4
12/20 20:30	85.3	↓-1.4
12/20 20:40	83.8	↓-1.5
12/20 20:50	82.3	↓-1.5
12/20 21:00	80.6	↓-1.7
12/20 21:10	78.9	↓-1.7
12/20 21:20	77.1	↓-1.8
12/20 21:30	75.3	↓-1.8
12/20 21:40	73.5	↓-1.8
12/20 21:50	71.6	↓-1.9	最大潮位差
12/20 22:00	69.7	↓-1.9	最大潮位差
12/20 22:10	67.8	↓-1.9	最大潮位差
12/20 22:20	66.0	↓-1.8
12/20 22:30	64.1	↓-1.9	最大潮位差
12/20 22:40	62.3	↓-1.8
12/20 22:50	60.5	↓-1.8
12/20 23:00	58.8	↓-1.7
12/20 23:10	57.2	↓-1.6
12/20 23:20	55.6	↓-1.6
12/20 23:30	54.1	↓-1.5
12/20 23:40	52.7	↓-1.4
12/20 23:50	51.4	↓-1.3