20 (日)	06:11	07:16	15:38	23:47
	32cm	32cm	58cm	19cm
大潮 出 04:22 入 19:10 出 04:58 入 19:09

江差／桧山（北海道）2031年07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
7/20 00:00	18.2	↑0.2
7/20 00:10	18.5	↑0.3
7/20 00:20	18.9	↑0.4
7/20 00:30	19.3	↑0.4
7/20 00:40	19.7	↑0.4
7/20 00:50	20.2	↑0.5
7/20 01:00	20.7	↑0.5
7/20 01:10	21.2	↑0.5
7/20 01:20	21.7	↑0.5
7/20 01:30	22.3	↑0.6
7/20 01:40	22.8	↑0.5
7/20 01:50	23.4	↑0.6
7/20 02:00	24.0	↑0.6
7/20 02:10	24.5	↑0.5
7/20 02:20	25.1	↑0.6
7/20 02:30	25.6	↑0.5
7/20 02:40	26.2	↑0.6
7/20 02:50	26.7	↑0.5
7/20 03:00	27.2	↑0.5
7/20 03:10	27.6	↑0.4
7/20 03:20	28.1	↑0.5
7/20 03:30	28.5	↑0.4
7/20 03:40	28.9	↑0.4
7/20 03:50	29.3	↑0.4
7/20 04:00	29.6	↑0.3
7/20 04:10	29.9	↑0.3
7/20 04:20	30.2	↑0.3
7/20 04:30	30.5	↑0.3
7/20 04:40	30.7	↑0.2
7/20 04:50	30.9	↑0.2
7/20 05:00	31.0	↑0.1
7/20 05:10	31.2	↑0.2
7/20 05:20	31.3	↑0.1
7/20 05:30	31.3	0
7/20 05:40	31.4	↑0.1
7/20 05:50	31.4	0
7/20 06:00	31.5	↑0.1
7/20 06:10	31.5	0	満潮
7/20 06:20	31.5	0
7/20 06:30	31.5	0
7/20 06:40	31.4	↓-0.1
7/20 06:50	31.4	0
7/20 07:00	31.4	0
7/20 07:10	31.4	0	干潮
7/20 07:20	31.4	0
7/20 07:30	31.4	0
7/20 07:40	31.4	0
7/20 07:50	31.5	↑0.1
7/20 08:00	31.6	↑0.1
7/20 08:10	31.7	↑0.1
7/20 08:20	31.8	↑0.1
7/20 08:30	31.9	↑0.1
7/20 08:40	32.1	↑0.2
7/20 08:50	32.4	↑0.3
7/20 09:00	32.6	↑0.2
7/20 09:10	32.9	↑0.3
7/20 09:20	33.3	↑0.4
7/20 09:30	33.7	↑0.4
7/20 09:40	34.1	↑0.4
7/20 09:50	34.6	↑0.5
7/20 10:00	35.1	↑0.5
7/20 10:10	35.6	↑0.5
7/20 10:20	36.2	↑0.6
7/20 10:30	36.9	↑0.7
7/20 10:40	37.6	↑0.7
7/20 10:50	38.3	↑0.7
7/20 11:00	39.0	↑0.7
7/20 11:10	39.8	↑0.8
7/20 11:20	40.6	↑0.8
7/20 11:30	41.4	↑0.8
7/20 11:40	42.3	↑0.9
7/20 11:50	43.1	↑0.8
7/20 12:00	44.0	↑0.9
7/20 12:10	44.9	↑0.9
7/20 12:20	45.8	↑0.9
7/20 12:30	46.7	↑0.9
7/20 12:40	47.6	↑0.9
7/20 12:50	48.4	↑0.8
7/20 13:00	49.3	↑0.9
7/20 13:10	50.1	↑0.8
7/20 13:20	51.0	↑0.9
7/20 13:30	51.7	↑0.7
7/20 13:40	52.5	↑0.8
7/20 13:50	53.2	↑0.7
7/20 14:00	53.9	↑0.7
7/20 14:10	54.5	↑0.6
7/20 14:20	55.0	↑0.5
7/20 14:30	55.5	↑0.5
7/20 14:40	56.0	↑0.5
7/20 14:50	56.4	↑0.4
7/20 15:00	56.7	↑0.3
7/20 15:10	56.9	↑0.2
7/20 15:20	57.1	↑0.2
7/20 15:30	57.2	↑0.1	満潮
7/20 15:40	57.2	0
7/20 15:50	57.1	↓-0.1
7/20 16:00	57.0	↓-0.1
7/20 16:10	56.8	↓-0.2
7/20 16:20	56.5	↓-0.3
7/20 16:30	56.1	↓-0.4
7/20 16:40	55.6	↓-0.5
7/20 16:50	55.1	↓-0.5
7/20 17:00	54.5	↓-0.6
7/20 17:10	53.8	↓-0.7
7/20 17:20	53.1	↓-0.7
7/20 17:30	52.3	↓-0.8
7/20 17:40	51.4	↓-0.9
7/20 17:50	50.4	↓-1.0
7/20 18:00	49.4	↓-1.0
7/20 18:10	48.4	↓-1.0
7/20 18:20	47.3	↓-1.1
7/20 18:30	46.2	↓-1.1
7/20 18:40	45.0	↓-1.2
7/20 18:50	43.8	↓-1.2
7/20 19:00	42.6	↓-1.2
7/20 19:10	41.3	↓-1.3	最大潮位差
7/20 19:20	40.1	↓-1.2
7/20 19:30	38.8	↓-1.3	最大潮位差
7/20 19:40	37.6	↓-1.2
7/20 19:50	36.3	↓-1.3	最大潮位差
7/20 20:00	35.1	↓-1.2
7/20 20:10	33.8	↓-1.3	最大潮位差
7/20 20:20	32.6	↓-1.2
7/20 20:30	31.4	↓-1.2
7/20 20:40	30.3	↓-1.1
7/20 20:50	29.1	↓-1.2
7/20 21:00	28.1	↓-1.0
7/20 21:10	27.0	↓-1.1
7/20 21:20	26.0	↓-1.0
7/20 21:30	25.1	↓-0.9
7/20 21:40	24.2	↓-0.9
7/20 21:50	23.4	↓-0.8
7/20 22:00	22.7	↓-0.7
7/20 22:10	22.0	↓-0.7
7/20 22:20	21.4	↓-0.6
7/20 22:30	20.8	↓-0.6
7/20 22:40	20.3	↓-0.5
7/20 22:50	19.9	↓-0.4
7/20 23:00	19.6	↓-0.3
7/20 23:10	19.3	↓-0.3
7/20 23:20	19.1	↓-0.2
7/20 23:30	19.0	↓-0.1
7/20 23:40	18.9	↓-0.1	干潮
7/20 23:50	18.9	0