20 (月)	04:39	06:37	14:35	22:31
	34cm	33cm	55cm	24cm
大潮 出 05:24 入 17:41 出 17:45 入 04:05

江差／桧山（北海道）2021年09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
9/20 00:00	24.5	↑0.5
9/20 00:10	24.9	↑0.4
9/20 00:20	25.4	↑0.5
9/20 00:30	25.9	↑0.5
9/20 00:40	26.4	↑0.5
9/20 00:50	26.9	↑0.5
9/20 01:00	27.4	↑0.5
9/20 01:10	27.9	↑0.5
9/20 01:20	28.3	↑0.4
9/20 01:30	28.8	↑0.5
9/20 01:40	29.2	↑0.4
9/20 01:50	29.7	↑0.5
9/20 02:00	30.1	↑0.4
9/20 02:10	30.5	↑0.4
9/20 02:20	30.8	↑0.3
9/20 02:30	31.2	↑0.4
9/20 02:40	31.5	↑0.3
9/20 02:50	31.8	↑0.3
9/20 03:00	32.0	↑0.2
9/20 03:10	32.3	↑0.3
9/20 03:20	32.5	↑0.2
9/20 03:30	32.7	↑0.2
9/20 03:40	32.8	↑0.1
9/20 03:50	32.9	↑0.1
9/20 04:00	33.0	↑0.1
9/20 04:10	33.1	↑0.1
9/20 04:20	33.1	0
9/20 04:30	33.1	0	満潮
9/20 04:40	33.1	0
9/20 04:50	33.1	0
9/20 05:00	33.1	0
9/20 05:10	33.1	0
9/20 05:20	33.0	↓-0.1
9/20 05:30	33.0	0
9/20 05:40	32.9	↓-0.1
9/20 05:50	32.9	0
9/20 06:00	32.8	↓-0.1
9/20 06:10	32.8	0
9/20 06:20	32.8	0
9/20 06:30	32.7	↓-0.1	干潮
9/20 06:40	32.7	0
9/20 06:50	32.8	↑0.1
9/20 07:00	32.8	0
9/20 07:10	32.9	↑0.1
9/20 07:20	33.0	↑0.1
9/20 07:30	33.1	↑0.1
9/20 07:40	33.2	↑0.1
9/20 07:50	33.4	↑0.2
9/20 08:00	33.6	↑0.2
9/20 08:10	33.9	↑0.3
9/20 08:20	34.2	↑0.3
9/20 08:30	34.5	↑0.3
9/20 08:40	34.9	↑0.4
9/20 08:50	35.3	↑0.4
9/20 09:00	35.8	↑0.5
9/20 09:10	36.2	↑0.4
9/20 09:20	36.8	↑0.6
9/20 09:30	37.3	↑0.5
9/20 09:40	37.9	↑0.6
9/20 09:50	38.5	↑0.6
9/20 10:00	39.2	↑0.7
9/20 10:10	39.9	↑0.7
9/20 10:20	40.6	↑0.7
9/20 10:30	41.3	↑0.7
9/20 10:40	42.0	↑0.7
9/20 10:50	42.8	↑0.8
9/20 11:00	43.6	↑0.8
9/20 11:10	44.3	↑0.7
9/20 11:20	45.1	↑0.8
9/20 11:30	45.9	↑0.8
9/20 11:40	46.7	↑0.8
9/20 11:50	47.4	↑0.7
9/20 12:00	48.2	↑0.8
9/20 12:10	48.9	↑0.7
9/20 12:20	49.6	↑0.7
9/20 12:30	50.3	↑0.7
9/20 12:40	50.9	↑0.6
9/20 12:50	51.5	↑0.6
9/20 13:00	52.1	↑0.6
9/20 13:10	52.6	↑0.5
9/20 13:20	53.1	↑0.5
9/20 13:30	53.5	↑0.4
9/20 13:40	53.9	↑0.4
9/20 13:50	54.2	↑0.3
9/20 14:00	54.4	↑0.2
9/20 14:10	54.6	↑0.2
9/20 14:20	54.8	↑0.2
9/20 14:30	54.8	0	満潮
9/20 14:40	54.8	0
9/20 14:50	54.7	↓-0.1
9/20 15:00	54.6	↓-0.1
9/20 15:10	54.4	↓-0.2
9/20 15:20	54.1	↓-0.3
9/20 15:30	53.7	↓-0.4
9/20 15:40	53.3	↓-0.4
9/20 15:50	52.8	↓-0.5
9/20 16:00	52.3	↓-0.5
9/20 16:10	51.7	↓-0.6
9/20 16:20	51.0	↓-0.7
9/20 16:30	50.3	↓-0.7
9/20 16:40	49.5	↓-0.8
9/20 16:50	48.7	↓-0.8
9/20 17:00	47.8	↓-0.9
9/20 17:10	46.9	↓-0.9
9/20 17:20	46.0	↓-0.9
9/20 17:30	45.0	↓-1.0
9/20 17:40	44.0	↓-1.0
9/20 17:50	43.0	↓-1.0
9/20 18:00	41.9	↓-1.1	最大潮位差
9/20 18:10	40.9	↓-1.0
9/20 18:20	39.8	↓-1.1	最大潮位差
9/20 18:30	38.7	↓-1.1	最大潮位差
9/20 18:40	37.7	↓-1.0
9/20 18:50	36.6	↓-1.1	最大潮位差
9/20 19:00	35.6	↓-1.0
9/20 19:10	34.5	↓-1.1	最大潮位差
9/20 19:20	33.5	↓-1.0
9/20 19:30	32.6	↓-0.9
9/20 19:40	31.6	↓-1.0
9/20 19:50	30.7	↓-0.9
9/20 20:00	29.8	↓-0.9
9/20 20:10	29.0	↓-0.8
9/20 20:20	28.2	↓-0.8
9/20 20:30	27.5	↓-0.7
9/20 20:40	26.8	↓-0.7
9/20 20:50	26.2	↓-0.6
9/20 21:00	25.6	↓-0.6
9/20 21:10	25.1	↓-0.5
9/20 21:20	24.7	↓-0.4
9/20 21:30	24.3	↓-0.4
9/20 21:40	24.0	↓-0.3
9/20 21:50	23.7	↓-0.3
9/20 22:00	23.5	↓-0.2
9/20 22:10	23.3	↓-0.2
9/20 22:20	23.3	0
9/20 22:30	23.2	↓-0.1	干潮
9/20 22:40	23.3	↑0.1
9/20 22:50	23.3	0
9/20 23:00	23.5	↑0.2
9/20 23:10	23.7	↑0.2
9/20 23:20	23.9	↑0.2
9/20 23:30	24.2	↑0.3
9/20 23:40	24.5	↑0.3
9/20 23:50	24.8	↑0.3