4 (木)	05:32	12:23	18:33	23:32
	95cm	32cm	74cm	51cm
中潮 出 05:54 入 17:14 出 23:16 入 08:33

コイセボイ（北海道）2021年03月4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
3/4 00:00	48.7	↑0.5
3/4 00:10	49.4	↑0.7
3/4 00:20	50.2	↑0.8
3/4 00:30	51.2	↑1.0
3/4 00:40	52.3	↑1.1
3/4 00:50	53.5	↑1.2
3/4 01:00	54.9	↑1.4
3/4 01:10	56.4	↑1.5
3/4 01:20	58.0	↑1.6
3/4 01:30	59.7	↑1.7
3/4 01:40	61.5	↑1.8
3/4 01:50	63.4	↑1.9
3/4 02:00	65.3	↑1.9
3/4 02:10	67.3	↑2.0
3/4 02:20	69.3	↑2.0
3/4 02:30	71.3	↑2.0
3/4 02:40	73.3	↑2.0
3/4 02:50	75.3	↑2.0
3/4 03:00	77.3	↑2.0
3/4 03:10	79.2	↑1.9
3/4 03:20	81.1	↑1.9
3/4 03:30	82.9	↑1.8
3/4 03:40	84.6	↑1.7
3/4 03:50	86.3	↑1.7
3/4 04:00	87.8	↑1.5
3/4 04:10	89.2	↑1.4
3/4 04:20	90.4	↑1.2
3/4 04:30	91.6	↑1.2
3/4 04:40	92.5	↑0.9
3/4 04:50	93.3	↑0.8
3/4 05:00	94.0	↑0.7
3/4 05:10	94.4	↑0.4
3/4 05:20	94.7	↑0.3
3/4 05:30	94.9	↑0.2	満潮
3/4 05:40	94.8	↓-0.1
3/4 05:50	94.5	↓-0.3
3/4 06:00	94.1	↓-0.4
3/4 06:10	93.5	↓-0.6
3/4 06:20	92.7	↓-0.8
3/4 06:30	91.7	↓-1.0
3/4 06:40	90.5	↓-1.2
3/4 06:50	89.2	↓-1.3
3/4 07:00	87.8	↓-1.4
3/4 07:10	86.2	↓-1.6
3/4 07:20	84.4	↓-1.8
3/4 07:30	82.5	↓-1.9
3/4 07:40	80.5	↓-2.0
3/4 07:50	78.4	↓-2.1
3/4 08:00	76.2	↓-2.2
3/4 08:10	74.0	↓-2.2
3/4 08:20	71.6	↓-2.4
3/4 08:30	69.2	↓-2.4
3/4 08:40	66.8	↓-2.4
3/4 08:50	64.4	↓-2.4
3/4 09:00	61.9	↓-2.5	最大潮位差
3/4 09:10	59.5	↓-2.4
3/4 09:20	57.1	↓-2.4
3/4 09:30	54.7	↓-2.4
3/4 09:40	52.3	↓-2.4
3/4 09:50	50.1	↓-2.2
3/4 10:00	47.9	↓-2.2
3/4 10:10	45.8	↓-2.1
3/4 10:20	43.8	↓-2.0
3/4 10:30	42.0	↓-1.8
3/4 10:40	40.2	↓-1.8
3/4 10:50	38.6	↓-1.6
3/4 11:00	37.2	↓-1.4
3/4 11:10	35.9	↓-1.3
3/4 11:20	34.7	↓-1.2
3/4 11:30	33.7	↓-1.0
3/4 11:40	32.9	↓-0.8
3/4 11:50	32.3	↓-0.6
3/4 12:00	31.8	↓-0.5
3/4 12:10	31.5	↓-0.3
3/4 12:20	31.4	↓-0.1	干潮
3/4 12:30	31.4	0
3/4 12:40	31.7	↑0.3
3/4 12:50	32.0	↑0.3
3/4 13:00	32.6	↑0.6
3/4 13:10	33.3	↑0.7
3/4 13:20	34.1	↑0.8
3/4 13:30	35.1	↑1.0
3/4 13:40	36.3	↑1.2
3/4 13:50	37.5	↑1.2
3/4 14:00	38.8	↑1.3
3/4 14:10	40.3	↑1.5
3/4 14:20	41.8	↑1.5
3/4 14:30	43.4	↑1.6
3/4 14:40	45.1	↑1.7
3/4 14:50	46.8	↑1.7
3/4 15:00	48.6	↑1.8
3/4 15:10	50.4	↑1.8
3/4 15:20	52.2	↑1.8
3/4 15:30	54.0	↑1.8
3/4 15:40	55.7	↑1.7
3/4 15:50	57.5	↑1.8
3/4 16:00	59.2	↑1.7
3/4 16:10	60.8	↑1.6
3/4 16:20	62.4	↑1.6
3/4 16:30	63.9	↑1.5
3/4 16:40	65.3	↑1.4
3/4 16:50	66.7	↑1.4
3/4 17:00	67.9	↑1.2
3/4 17:10	69.0	↑1.1
3/4 17:20	70.0	↑1.0
3/4 17:30	70.9	↑0.9
3/4 17:40	71.6	↑0.7
3/4 17:50	72.3	↑0.7
3/4 18:00	72.7	↑0.4
3/4 18:10	73.1	↑0.4
3/4 18:20	73.3	↑0.2
3/4 18:30	73.4	↑0.1	満潮
3/4 18:40	73.4	0
3/4 18:50	73.2	↓-0.2
3/4 19:00	72.9	↓-0.3
3/4 19:10	72.5	↓-0.4
3/4 19:20	71.9	↓-0.6
3/4 19:30	71.3	↓-0.6
3/4 19:40	70.6	↓-0.7
3/4 19:50	69.8	↓-0.8
3/4 20:00	68.9	↓-0.9
3/4 20:10	67.9	↓-1.0
3/4 20:20	66.8	↓-1.1
3/4 20:30	65.8	↓-1.0
3/4 20:40	64.6	↓-1.2
3/4 20:50	63.5	↓-1.1
3/4 21:00	62.3	↓-1.2
3/4 21:10	61.2	↓-1.1
3/4 21:20	60.0	↓-1.2
3/4 21:30	58.9	↓-1.1
3/4 21:40	57.8	↓-1.1
3/4 21:50	56.7	↓-1.1
3/4 22:00	55.7	↓-1.0
3/4 22:10	54.8	↓-0.9
3/4 22:20	54.0	↓-0.8
3/4 22:30	53.2	↓-0.8
3/4 22:40	52.5	↓-0.7
3/4 22:50	52.0	↓-0.5
3/4 23:00	51.5	↓-0.5
3/4 23:10	51.2	↓-0.3
3/4 23:20	51.0	↓-0.2
3/4 23:30	50.9	↓-0.1	干潮
3/4 23:40	51.0	↑0.1
3/4 23:50	51.2	↑0.2