21 (木)	09:40	03:02	19:45	10:49
	56cm	39cm	101cm	56cm
小潮 出 05:07 入 17:22 出 12:48 入 22:36

コイセボイ（北海道）2034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	55.3	↓-1.9	最大潮位差
9/21 00:10	53.5	↓-1.8
9/21 00:20	51.8	↓-1.7
9/21 00:30	50.1	↓-1.7
9/21 00:40	48.6	↓-1.5
9/21 00:50	47.2	↓-1.4
9/21 01:00	45.8	↓-1.4
9/21 01:10	44.6	↓-1.2
9/21 01:20	43.4	↓-1.2
9/21 01:30	42.4	↓-1.0
9/21 01:40	41.5	↓-0.9
9/21 01:50	40.7	↓-0.8
9/21 02:00	40.0	↓-0.7
9/21 02:10	39.4	↓-0.6
9/21 02:20	38.9	↓-0.5
9/21 02:30	38.5	↓-0.4
9/21 02:40	38.3	↓-0.2
9/21 02:50	38.1	↓-0.2
9/21 03:00	38.0	↓-0.1	干潮
9/21 03:10	38.1	↑0.1
9/21 03:20	38.2	↑0.1
9/21 03:30	38.4	↑0.2
9/21 03:40	38.7	↑0.3
9/21 03:50	39.1	↑0.4
9/21 04:00	39.5	↑0.4
9/21 04:10	40.0	↑0.5
9/21 04:20	40.5	↑0.5
9/21 04:30	41.1	↑0.6
9/21 04:40	41.8	↑0.7
9/21 04:50	42.5	↑0.7
9/21 05:00	43.2	↑0.7
9/21 05:10	43.9	↑0.7
9/21 05:20	44.7	↑0.8
9/21 05:30	45.4	↑0.7
9/21 05:40	46.2	↑0.8
9/21 05:50	46.9	↑0.7
9/21 06:00	47.7	↑0.8
9/21 06:10	48.4	↑0.7
9/21 06:20	49.2	↑0.8
9/21 06:30	49.9	↑0.7
9/21 06:40	50.5	↑0.6
9/21 06:50	51.2	↑0.7
9/21 07:00	51.8	↑0.6
9/21 07:10	52.3	↑0.5
9/21 07:20	52.9	↑0.6
9/21 07:30	53.3	↑0.4
9/21 07:40	53.8	↑0.5
9/21 07:50	54.2	↑0.4
9/21 08:00	54.5	↑0.3
9/21 08:10	54.9	↑0.4
9/21 08:20	55.1	↑0.2
9/21 08:30	55.4	↑0.3
9/21 08:40	55.5	↑0.1
9/21 08:50	55.7	↑0.2
9/21 09:00	55.8	↑0.1
9/21 09:10	55.9	↑0.1
9/21 09:20	55.9	0
9/21 09:30	56.0	↑0.1	満潮
9/21 09:40	56.0	0	満潮
9/21 09:50	56.0	0
9/21 10:00	55.9	↓-0.1
9/21 10:10	55.9	0
9/21 10:20	55.9	0
9/21 10:30	55.9	0
9/21 10:40	55.8	↓-0.1	干潮
9/21 10:50	55.8	0
9/21 11:00	55.9	↑0.1
9/21 11:10	55.9	0
9/21 11:20	56.0	↑0.1
9/21 11:30	56.0	0
9/21 11:40	56.2	↑0.2
9/21 11:50	56.4	↑0.2
9/21 12:00	56.6	↑0.2
9/21 12:10	56.9	↑0.3
9/21 12:20	57.2	↑0.3
9/21 12:30	57.6	↑0.4
9/21 12:40	58.0	↑0.4
9/21 12:50	58.5	↑0.5
9/21 13:00	59.1	↑0.6
9/21 13:10	59.7	↑0.6
9/21 13:20	60.4	↑0.7
9/21 13:30	61.2	↑0.8
9/21 13:40	62.0	↑0.8
9/21 13:50	62.9	↑0.9
9/21 14:00	63.9	↑1.0
9/21 14:10	64.9	↑1.0
9/21 14:20	65.9	↑1.0
9/21 14:30	67.1	↑1.2
9/21 14:40	68.3	↑1.2
9/21 14:50	69.5	↑1.2
9/21 15:00	70.8	↑1.3
9/21 15:10	72.1	↑1.3
9/21 15:20	73.5	↑1.4
9/21 15:30	74.9	↑1.4
9/21 15:40	76.3	↑1.4
9/21 15:50	77.7	↑1.4
9/21 16:00	79.2	↑1.5
9/21 16:10	80.6	↑1.4
9/21 16:20	82.1	↑1.5
9/21 16:30	83.5	↑1.4
9/21 16:40	84.9	↑1.4
9/21 16:50	86.3	↑1.4
9/21 17:00	87.7	↑1.4
9/21 17:10	89.1	↑1.4
9/21 17:20	90.4	↑1.3
9/21 17:30	91.6	↑1.2
9/21 17:40	92.8	↑1.2
9/21 17:50	93.9	↑1.1
9/21 18:00	95.0	↑1.1
9/21 18:10	96.0	↑1.0
9/21 18:20	96.9	↑0.9
9/21 18:30	97.7	↑0.8
9/21 18:40	98.5	↑0.8
9/21 18:50	99.1	↑0.6
9/21 19:00	99.6	↑0.5
9/21 19:10	100.1	↑0.5
9/21 19:20	100.4	↑0.3
9/21 19:30	100.6	↑0.2
9/21 19:40	100.7	↑0.1	満潮
9/21 19:50	100.7	0
9/21 20:00	100.6	↓-0.1
9/21 20:10	100.3	↓-0.3
9/21 20:20	100.0	↓-0.3
9/21 20:30	99.5	↓-0.5
9/21 20:40	98.9	↓-0.6
9/21 20:50	98.3	↓-0.6
9/21 21:00	97.5	↓-0.8
9/21 21:10	96.6	↓-0.9
9/21 21:20	95.6	↓-1.0
9/21 21:30	94.5	↓-1.1
9/21 21:40	93.3	↓-1.2
9/21 21:50	92.0	↓-1.3
9/21 22:00	90.6	↓-1.4
9/21 22:10	89.1	↓-1.5
9/21 22:20	87.6	↓-1.5
9/21 22:30	86.0	↓-1.6
9/21 22:40	84.4	↓-1.6
9/21 22:50	82.7	↓-1.7
9/21 23:00	80.9	↓-1.8
9/21 23:10	79.1	↓-1.8
9/21 23:20	77.3	↓-1.8
9/21 23:30	75.5	↓-1.8
9/21 23:40	73.6	↓-1.9	最大潮位差
9/21 23:50	71.7	↓-1.9	最大潮位差