21 (金)	01:10	08:17	14:06	19:28
	100cm	39cm	74cm	46cm
大潮 出 05:07 入 17:22 出 16:20 入 03:27

コイセボイ（北海道）2029年09月21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
9/21 00:00	96.2	↑1.0
9/21 00:10	97.1	↑0.9
9/21 00:20	97.9	↑0.8
9/21 00:30	98.6	↑0.7
9/21 00:40	99.1	↑0.5
9/21 00:50	99.5	↑0.4
9/21 01:00	99.7	↑0.2	満潮
9/21 01:10	99.7	0	満潮
9/21 01:20	99.6	↓-0.1
9/21 01:30	99.4	↓-0.2
9/21 01:40	99.0	↓-0.4
9/21 01:50	98.4	↓-0.6
9/21 02:00	97.7	↓-0.7
9/21 02:10	96.8	↓-0.9
9/21 02:20	95.8	↓-1.0
9/21 02:30	94.6	↓-1.2
9/21 02:40	93.3	↓-1.3
9/21 02:50	91.8	↓-1.5
9/21 03:00	90.2	↓-1.6
9/21 03:10	88.6	↓-1.6
9/21 03:20	86.8	↓-1.8
9/21 03:30	84.9	↓-1.9
9/21 03:40	82.9	↓-2.0
9/21 03:50	80.8	↓-2.1
9/21 04:00	78.7	↓-2.1
9/21 04:10	76.5	↓-2.2
9/21 04:20	74.3	↓-2.2
9/21 04:30	72.0	↓-2.3	最大潮位差
9/21 04:40	69.8	↓-2.2
9/21 04:50	67.5	↓-2.3	最大潮位差
9/21 05:00	65.3	↓-2.2
9/21 05:10	63.0	↓-2.3	最大潮位差
9/21 05:20	60.8	↓-2.2
9/21 05:30	58.7	↓-2.1
9/21 05:40	56.6	↓-2.1
9/21 05:50	54.6	↓-2.0
9/21 06:00	52.7	↓-1.9
9/21 06:10	50.8	↓-1.9
9/21 06:20	49.1	↓-1.7
9/21 06:30	47.5	↓-1.6
9/21 06:40	46.0	↓-1.5
9/21 06:50	44.6	↓-1.4
9/21 07:00	43.4	↓-1.2
9/21 07:10	42.3	↓-1.1
9/21 07:20	41.3	↓-1.0
9/21 07:30	40.5	↓-0.8
9/21 07:40	39.9	↓-0.6
9/21 07:50	39.4	↓-0.5
9/21 08:00	39.1	↓-0.3
9/21 08:10	38.9	↓-0.2	干潮
9/21 08:20	38.9	0
9/21 08:30	39.0	↑0.1
9/21 08:40	39.3	↑0.3
9/21 08:50	39.8	↑0.5
9/21 09:00	40.3	↑0.5
9/21 09:10	41.0	↑0.7
9/21 09:20	41.9	↑0.9
9/21 09:30	42.8	↑0.9
9/21 09:40	43.8	↑1.0
9/21 09:50	45.0	↑1.2
9/21 10:00	46.2	↑1.2
9/21 10:10	47.6	↑1.4
9/21 10:20	48.9	↑1.3
9/21 10:30	50.4	↑1.5
9/21 10:40	51.9	↑1.5
9/21 10:50	53.4	↑1.5
9/21 11:00	54.9	↑1.5
9/21 11:10	56.4	↑1.5
9/21 11:20	58.0	↑1.6
9/21 11:30	59.5	↑1.5
9/21 11:40	61.0	↑1.5
9/21 11:50	62.4	↑1.4
9/21 12:00	63.8	↑1.4
9/21 12:10	65.1	↑1.3
9/21 12:20	66.4	↑1.3
9/21 12:30	67.6	↑1.2
9/21 12:40	68.6	↑1.0
9/21 12:50	69.6	↑1.0
9/21 13:00	70.5	↑0.9
9/21 13:10	71.2	↑0.7
9/21 13:20	71.9	↑0.7
9/21 13:30	72.4	↑0.5
9/21 13:40	72.8	↑0.4
9/21 13:50	73.0	↑0.2
9/21 14:00	73.2	↑0.2	満潮
9/21 14:10	73.2	0
9/21 14:20	73.0	↓-0.2
9/21 14:30	72.8	↓-0.2
9/21 14:40	72.4	↓-0.4
9/21 14:50	71.9	↓-0.5
9/21 15:00	71.3	↓-0.6
9/21 15:10	70.5	↓-0.8
9/21 15:20	69.7	↓-0.8
9/21 15:30	68.8	↓-0.9
9/21 15:40	67.8	↓-1.0
9/21 15:50	66.7	↓-1.1
9/21 16:00	65.5	↓-1.2
9/21 16:10	64.3	↓-1.2
9/21 16:20	63.0	↓-1.3
9/21 16:30	61.7	↓-1.3
9/21 16:40	60.4	↓-1.3
9/21 16:50	59.0	↓-1.4
9/21 17:00	57.7	↓-1.3
9/21 17:10	56.4	↓-1.3
9/21 17:20	55.1	↓-1.3
9/21 17:30	53.8	↓-1.3
9/21 17:40	52.6	↓-1.2
9/21 17:50	51.4	↓-1.2
9/21 18:00	50.3	↓-1.1
9/21 18:10	49.3	↓-1.0
9/21 18:20	48.4	↓-0.9
9/21 18:30	47.6	↓-0.8
9/21 18:40	46.9	↓-0.7
9/21 18:50	46.4	↓-0.5
9/21 19:00	45.9	↓-0.5
9/21 19:10	45.6	↓-0.3
9/21 19:20	45.4	↓-0.2	干潮
9/21 19:30	45.4	0
9/21 19:40	45.5	↑0.1
9/21 19:50	45.8	↑0.3
9/21 20:00	46.2	↑0.4
9/21 20:10	46.8	↑0.6
9/21 20:20	47.5	↑0.7
9/21 20:30	48.4	↑0.9
9/21 20:40	49.4	↑1.0
9/21 20:50	50.5	↑1.1
9/21 21:00	51.8	↑1.3
9/21 21:10	53.2	↑1.4
9/21 21:20	54.7	↑1.5
9/21 21:30	56.4	↑1.7
9/21 21:40	58.1	↑1.7
9/21 21:50	60.0	↑1.9
9/21 22:00	61.9	↑1.9
9/21 22:10	63.9	↑2.0
9/21 22:20	65.9	↑2.0
9/21 22:30	68.0	↑2.1
9/21 22:40	70.1	↑2.1
9/21 22:50	72.3	↑2.2
9/21 23:00	74.4	↑2.1
9/21 23:10	76.5	↑2.1
9/21 23:20	78.7	↑2.2
9/21 23:30	80.7	↑2.0
9/21 23:40	82.7	↑2.0
9/21 23:50	84.7	↑2.0