20 (日)	03:08	06:34	13:39	21:12
	64cm	58cm	111cm	29cm
大潮 出 06:13 入 16:58 出 04:48 入 15:22

コイセボイ（北海道）2050年02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
2/20 00:00	48.3	↑1.5
2/20 00:10	49.8	↑1.5
2/20 00:20	51.2	↑1.4
2/20 00:30	52.6	↑1.4
2/20 00:40	53.9	↑1.3
2/20 00:50	55.2	↑1.3
2/20 01:00	56.4	↑1.2
2/20 01:10	57.5	↑1.1
2/20 01:20	58.6	↑1.1
2/20 01:30	59.5	↑0.9
2/20 01:40	60.4	↑0.9
2/20 01:50	61.2	↑0.8
2/20 02:00	61.8	↑0.6
2/20 02:10	62.4	↑0.6
2/20 02:20	62.9	↑0.5
2/20 02:30	63.3	↑0.4
2/20 02:40	63.6	↑0.3
2/20 02:50	63.7	↑0.1
2/20 03:00	63.8	↑0.1	満潮
2/20 03:10	63.9	↑0.1
2/20 03:20	63.8	↓-0.1
2/20 03:30	63.6	↓-0.2
2/20 03:40	63.4	↓-0.2
2/20 03:50	63.2	↓-0.2
2/20 04:00	62.8	↓-0.4
2/20 04:10	62.4	↓-0.4
2/20 04:20	62.0	↓-0.4
2/20 04:30	61.6	↓-0.4
2/20 04:40	61.1	↓-0.5
2/20 04:50	60.6	↓-0.5
2/20 05:00	60.1	↓-0.5
2/20 05:10	59.6	↓-0.5
2/20 05:20	59.2	↓-0.4
2/20 05:30	58.8	↓-0.4
2/20 05:40	58.4	↓-0.4
2/20 05:50	58.0	↓-0.4
2/20 06:00	57.7	↓-0.3
2/20 06:10	57.5	↓-0.2
2/20 06:20	57.4	↓-0.1
2/20 06:30	57.3	↓-0.1	干潮
2/20 06:40	57.3	0
2/20 06:50	57.4	↑0.1
2/20 07:00	57.6	↑0.2
2/20 07:10	58.0	↑0.4
2/20 07:20	58.4	↑0.4
2/20 07:30	58.9	↑0.5
2/20 07:40	59.6	↑0.7
2/20 07:50	60.3	↑0.7
2/20 08:00	61.2	↑0.9
2/20 08:10	62.2	↑1.0
2/20 08:20	63.4	↑1.2
2/20 08:30	64.6	↑1.2
2/20 08:40	65.9	↑1.3
2/20 08:50	67.4	↑1.5
2/20 09:00	68.9	↑1.5
2/20 09:10	70.5	↑1.6
2/20 09:20	72.2	↑1.7
2/20 09:30	74.0	↑1.8
2/20 09:40	75.9	↑1.9
2/20 09:50	77.8	↑1.9
2/20 10:00	79.8	↑2.0
2/20 10:10	81.8	↑2.0
2/20 10:20	83.8	↑2.0
2/20 10:30	85.8	↑2.0
2/20 10:40	87.9	↑2.1
2/20 10:50	89.9	↑2.0
2/20 11:00	91.9	↑2.0
2/20 11:10	93.9	↑2.0
2/20 11:20	95.8	↑1.9
2/20 11:30	97.6	↑1.8
2/20 11:40	99.4	↑1.8
2/20 11:50	101.1	↑1.7
2/20 12:00	102.7	↑1.6
2/20 12:10	104.2	↑1.5
2/20 12:20	105.5	↑1.3
2/20 12:30	106.8	↑1.3
2/20 12:40	107.8	↑1.0
2/20 12:50	108.8	↑1.0
2/20 13:00	109.5	↑0.7
2/20 13:10	110.1	↑0.6
2/20 13:20	110.6	↑0.5
2/20 13:30	110.8	↑0.2	満潮
2/20 13:40	110.9	↑0.1
2/20 13:50	110.8	↓-0.1
2/20 14:00	110.4	↓-0.4
2/20 14:10	109.9	↓-0.5
2/20 14:20	109.2	↓-0.7
2/20 14:30	108.3	↓-0.9
2/20 14:40	107.3	↓-1.0
2/20 14:50	106.0	↓-1.3
2/20 15:00	104.6	↓-1.4
2/20 15:10	103.0	↓-1.6
2/20 15:20	101.2	↓-1.8
2/20 15:30	99.3	↓-1.9
2/20 15:40	97.2	↓-2.1
2/20 15:50	95.0	↓-2.2
2/20 16:00	92.6	↓-2.4
2/20 16:10	90.1	↓-2.5
2/20 16:20	87.6	↓-2.5
2/20 16:30	84.9	↓-2.7
2/20 16:40	82.2	↓-2.7
2/20 16:50	79.4	↓-2.8
2/20 17:00	76.5	↓-2.9	最大潮位差
2/20 17:10	73.6	↓-2.9	最大潮位差
2/20 17:20	70.7	↓-2.9	最大潮位差
2/20 17:30	67.8	↓-2.9	最大潮位差
2/20 17:40	64.9	↓-2.9	最大潮位差
2/20 17:50	62.0	↓-2.9	最大潮位差
2/20 18:00	59.2	↓-2.8
2/20 18:10	56.4	↓-2.8
2/20 18:20	53.7	↓-2.7
2/20 18:30	51.0	↓-2.7
2/20 18:40	48.5	↓-2.5
2/20 18:50	46.1	↓-2.4
2/20 19:00	43.8	↓-2.3
2/20 19:10	41.6	↓-2.2
2/20 19:20	39.6	↓-2.0
2/20 19:30	37.7	↓-1.9
2/20 19:40	36.0	↓-1.7
2/20 19:50	34.4	↓-1.6
2/20 20:00	33.0	↓-1.4
2/20 20:10	31.8	↓-1.2
2/20 20:20	30.8	↓-1.0
2/20 20:30	29.9	↓-0.9
2/20 20:40	29.3	↓-0.6
2/20 20:50	28.8	↓-0.5
2/20 21:00	28.5	↓-0.3
2/20 21:10	28.4	↓-0.1	干潮
2/20 21:20	28.5	↑0.1
2/20 21:30	28.7	↑0.2
2/20 21:40	29.2	↑0.5
2/20 21:50	29.7	↑0.5
2/20 22:00	30.5	↑0.8
2/20 22:10	31.3	↑0.8
2/20 22:20	32.4	↑1.1
2/20 22:30	33.5	↑1.1
2/20 22:40	34.8	↑1.3
2/20 22:50	36.1	↑1.3
2/20 23:00	37.6	↑1.5
2/20 23:10	39.1	↑1.5
2/20 23:20	40.7	↑1.6
2/20 23:30	42.4	↑1.7
2/20 23:40	44.1	↑1.7
2/20 23:50	45.8	↑1.7