20 (日)	04:45	11:07	18:10	23:57
	41cm	23cm	48cm	35cm
中潮 出 05:25 入 17:41 出 08:25 入 19:32

江差／桧山（北海道）2020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	31.7	0
9/20 00:10	31.8	↑0.1
9/20 00:20	32.0	↑0.2
9/20 00:30	32.2	↑0.2
9/20 00:40	32.4	↑0.2
9/20 00:50	32.7	↑0.3
9/20 01:00	33.1	↑0.4
9/20 01:10	33.4	↑0.3
9/20 01:20	33.8	↑0.4
9/20 01:30	34.2	↑0.4
9/20 01:40	34.7	↑0.5
9/20 01:50	35.1	↑0.4
9/20 02:00	35.6	↑0.5
9/20 02:10	36.1	↑0.5
9/20 02:20	36.5	↑0.4
9/20 02:30	37.0	↑0.5
9/20 02:40	37.5	↑0.5
9/20 02:50	37.9	↑0.4
9/20 03:00	38.3	↑0.4
9/20 03:10	38.8	↑0.5
9/20 03:20	39.1	↑0.3
9/20 03:30	39.5	↑0.4
9/20 03:40	39.8	↑0.3
9/20 03:50	40.1	↑0.3
9/20 04:00	40.3	↑0.2
9/20 04:10	40.5	↑0.2
9/20 04:20	40.7	↑0.2
9/20 04:30	40.8	↑0.1
9/20 04:40	40.8	0	満潮
9/20 04:50	40.8	0
9/20 05:00	40.8	0
9/20 05:10	40.7	↓-0.1
9/20 05:20	40.5	↓-0.2
9/20 05:30	40.3	↓-0.2
9/20 05:40	40.0	↓-0.3
9/20 05:50	39.7	↓-0.3
9/20 06:00	39.3	↓-0.4
9/20 06:10	38.9	↓-0.4
9/20 06:20	38.4	↓-0.5
9/20 06:30	37.9	↓-0.5
9/20 06:40	37.3	↓-0.6
9/20 06:50	36.7	↓-0.6
9/20 07:00	36.1	↓-0.6
9/20 07:10	35.4	↓-0.7
9/20 07:20	34.7	↓-0.7
9/20 07:30	34.0	↓-0.7
9/20 07:40	33.3	↓-0.7
9/20 07:50	32.6	↓-0.7
9/20 08:00	31.8	↓-0.8
9/20 08:10	31.1	↓-0.7
9/20 08:20	30.3	↓-0.8
9/20 08:30	29.6	↓-0.7
9/20 08:40	28.9	↓-0.7
9/20 08:50	28.2	↓-0.7
9/20 09:00	27.5	↓-0.7
9/20 09:10	26.8	↓-0.7
9/20 09:20	26.2	↓-0.6
9/20 09:30	25.6	↓-0.6
9/20 09:40	25.1	↓-0.5
9/20 09:50	24.6	↓-0.5
9/20 10:00	24.2	↓-0.4
9/20 10:10	23.8	↓-0.4
9/20 10:20	23.5	↓-0.3
9/20 10:30	23.2	↓-0.3
9/20 10:40	23.0	↓-0.2
9/20 10:50	22.9	↓-0.1
9/20 11:00	22.8	↓-0.1	干潮
9/20 11:10	22.8	0
9/20 11:20	22.8	0
9/20 11:30	23.0	↑0.2
9/20 11:40	23.2	↑0.2
9/20 11:50	23.4	↑0.2
9/20 12:00	23.8	↑0.4
9/20 12:10	24.2	↑0.4
9/20 12:20	24.6	↑0.4
9/20 12:30	25.1	↑0.5
9/20 12:40	25.7	↑0.6
9/20 12:50	26.4	↑0.7
9/20 13:00	27.0	↑0.6
9/20 13:10	27.8	↑0.8
9/20 13:20	28.5	↑0.7
9/20 13:30	29.3	↑0.8
9/20 13:40	30.2	↑0.9
9/20 13:50	31.1	↑0.9
9/20 14:00	32.0	↑0.9
9/20 14:10	32.9	↑0.9
9/20 14:20	33.8	↑0.9
9/20 14:30	34.7	↑0.9
9/20 14:40	35.7	↑1.0	最大潮位差
9/20 14:50	36.6	↑0.9
9/20 15:00	37.5	↑0.9
9/20 15:10	38.4	↑0.9
9/20 15:20	39.3	↑0.9
9/20 15:30	40.2	↑0.9
9/20 15:40	41.0	↑0.8
9/20 15:50	41.9	↑0.9
9/20 16:00	42.6	↑0.7
9/20 16:10	43.3	↑0.7
9/20 16:20	44.0	↑0.7
9/20 16:30	44.6	↑0.6
9/20 16:40	45.2	↑0.6
9/20 16:50	45.7	↑0.5
9/20 17:00	46.2	↑0.5
9/20 17:10	46.6	↑0.4
9/20 17:20	46.9	↑0.3
9/20 17:30	47.2	↑0.3
9/20 17:40	47.4	↑0.2
9/20 17:50	47.6	↑0.2
9/20 18:00	47.7	↑0.1	満潮
9/20 18:10	47.7	0	満潮
9/20 18:20	47.6	↓-0.1
9/20 18:30	47.5	↓-0.1
9/20 18:40	47.4	↓-0.1
9/20 18:50	47.2	↓-0.2
9/20 19:00	46.9	↓-0.3
9/20 19:10	46.6	↓-0.3
9/20 19:20	46.2	↓-0.4
9/20 19:30	45.8	↓-0.4
9/20 19:40	45.4	↓-0.4
9/20 19:50	44.9	↓-0.5
9/20 20:00	44.4	↓-0.5
9/20 20:10	43.8	↓-0.6
9/20 20:20	43.2	↓-0.6
9/20 20:30	42.7	↓-0.5
9/20 20:40	42.1	↓-0.6
9/20 20:50	41.5	↓-0.6
9/20 21:00	40.9	↓-0.6
9/20 21:10	40.3	↓-0.6
9/20 21:20	39.7	↓-0.6
9/20 21:30	39.1	↓-0.6
9/20 21:40	38.5	↓-0.6
9/20 21:50	38.0	↓-0.5
9/20 22:00	37.4	↓-0.6
9/20 22:10	37.0	↓-0.4
9/20 22:20	36.5	↓-0.5
9/20 22:30	36.1	↓-0.4
9/20 22:40	35.7	↓-0.4
9/20 22:50	35.3	↓-0.4
9/20 23:00	35.0	↓-0.3
9/20 23:10	34.8	↓-0.2
9/20 23:20	34.6	↓-0.2
9/20 23:30	34.4	↓-0.2
9/20 23:40	34.3	↓-0.1
9/20 23:50	34.3	0	干潮