20 (月)	01:12	08:59	14:49	19:15
	26cm	2cm	12cm	7cm
中潮 出 04:52 入 18:26 出 03:59 入 15:34 潮干狩り ◎ 06:00～12:51

江差／桧山（北海道）2020年04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
4/20 00:00	24.6	↑0.4
4/20 00:10	24.9	↑0.3
4/20 00:20	25.1	↑0.2
4/20 00:30	25.4	↑0.3
4/20 00:40	25.5	↑0.1
4/20 00:50	25.7	↑0.2
4/20 01:00	25.8	↑0.1
4/20 01:10	25.8	0	満潮
4/20 01:20	25.8	0
4/20 01:30	25.7	↓-0.1
4/20 01:40	25.6	↓-0.1
4/20 01:50	25.4	↓-0.2
4/20 02:00	25.1	↓-0.3
4/20 02:10	24.9	↓-0.2
4/20 02:20	24.5	↓-0.4
4/20 02:30	24.1	↓-0.4
4/20 02:40	23.7	↓-0.4
4/20 02:50	23.2	↓-0.5
4/20 03:00	22.7	↓-0.5
4/20 03:10	22.1	↓-0.6
4/20 03:20	21.5	↓-0.6
4/20 03:30	20.8	↓-0.7
4/20 03:40	20.1	↓-0.7
4/20 03:50	19.4	↓-0.7
4/20 04:00	18.6	↓-0.8
4/20 04:10	17.9	↓-0.7
4/20 04:20	17.1	↓-0.8
4/20 04:30	16.2	↓-0.9	最大潮位差
4/20 04:40	15.4	↓-0.8
4/20 04:50	14.6	↓-0.8
4/20 05:00	13.7	↓-0.9	最大潮位差
4/20 05:10	12.9	↓-0.8
4/20 05:20	12.1	↓-0.8
4/20 05:30	11.2	↓-0.9	最大潮位差
4/20 05:40	10.4	↓-0.8
4/20 05:50	9.6	↓-0.8
4/20 06:00	8.8	↓-0.8
4/20 06:10	8.1	↓-0.7
4/20 06:20	7.3	↓-0.8
4/20 06:30	6.6	↓-0.7
4/20 06:40	6.0	↓-0.6
4/20 06:50	5.3	↓-0.7
4/20 07:00	4.7	↓-0.6
4/20 07:10	4.2	↓-0.5
4/20 07:20	3.7	↓-0.5
4/20 07:30	3.2	↓-0.5
4/20 07:40	2.8	↓-0.4
4/20 07:50	2.4	↓-0.4
4/20 08:00	2.1	↓-0.3
4/20 08:10	1.9	↓-0.2
4/20 08:20	1.6	↓-0.3
4/20 08:30	1.5	↓-0.1
4/20 08:40	1.4	↓-0.1
4/20 08:50	1.3	↓-0.1	干潮
4/20 09:00	1.3	0
4/20 09:10	1.3	0
4/20 09:20	1.4	↑0.1
4/20 09:30	1.5	↑0.1
4/20 09:40	1.7	↑0.2
4/20 09:50	1.9	↑0.2
4/20 10:00	2.1	↑0.2
4/20 10:10	2.4	↑0.3
4/20 10:20	2.7	↑0.3
4/20 10:30	3.1	↑0.4
4/20 10:40	3.4	↑0.3
4/20 10:50	3.8	↑0.4
4/20 11:00	4.2	↑0.4
4/20 11:10	4.6	↑0.4
4/20 11:20	5.1	↑0.5
4/20 11:30	5.5	↑0.4
4/20 11:40	5.9	↑0.4
4/20 11:50	6.4	↑0.5
4/20 12:00	6.8	↑0.4
4/20 12:10	7.3	↑0.5
4/20 12:20	7.7	↑0.4
4/20 12:30	8.1	↑0.4
4/20 12:40	8.5	↑0.4
4/20 12:50	8.9	↑0.4
4/20 13:00	9.2	↑0.3
4/20 13:10	9.5	↑0.3
4/20 13:20	9.8	↑0.3
4/20 13:30	10.1	↑0.3
4/20 13:40	10.4	↑0.3
4/20 13:50	10.6	↑0.2
4/20 14:00	10.7	↑0.1
4/20 14:10	10.9	↑0.2
4/20 14:20	11.0	↑0.1
4/20 14:30	11.1	↑0.1
4/20 14:40	11.1	0	満潮
4/20 14:50	11.1	0
4/20 15:00	11.1	0
4/20 15:10	11.1	0
4/20 15:20	11.0	↓-0.1
4/20 15:30	10.9	↓-0.1
4/20 15:40	10.7	↓-0.2
4/20 15:50	10.6	↓-0.1
4/20 16:00	10.4	↓-0.2
4/20 16:10	10.2	↓-0.2
4/20 16:20	9.9	↓-0.3
4/20 16:30	9.7	↓-0.2
4/20 16:40	9.4	↓-0.3
4/20 16:50	9.2	↓-0.2
4/20 17:00	8.9	↓-0.3
4/20 17:10	8.6	↓-0.3
4/20 17:20	8.4	↓-0.2
4/20 17:30	8.1	↓-0.3
4/20 17:40	7.9	↓-0.2
4/20 17:50	7.6	↓-0.3
4/20 18:00	7.4	↓-0.2
4/20 18:10	7.2	↓-0.2
4/20 18:20	7.0	↓-0.2
4/20 18:30	6.9	↓-0.1
4/20 18:40	6.7	↓-0.2
4/20 18:50	6.6	↓-0.1
4/20 19:00	6.6	0
4/20 19:10	6.5	↓-0.1	干潮
4/20 19:20	6.6	↑0.1
4/20 19:30	6.6	0
4/20 19:40	6.7	↑0.1
4/20 19:50	6.8	↑0.1
4/20 20:00	7.0	↑0.2
4/20 20:10	7.2	↑0.2
4/20 20:20	7.4	↑0.2
4/20 20:30	7.7	↑0.3
4/20 20:40	8.1	↑0.4
4/20 20:50	8.4	↑0.3
4/20 21:00	8.9	↑0.5
4/20 21:10	9.3	↑0.4
4/20 21:20	9.8	↑0.5
4/20 21:30	10.3	↑0.5
4/20 21:40	10.9	↑0.6
4/20 21:50	11.5	↑0.6
4/20 22:00	12.1	↑0.6
4/20 22:10	12.8	↑0.7
4/20 22:20	13.4	↑0.6
4/20 22:30	14.1	↑0.7
4/20 22:40	14.8	↑0.7
4/20 22:50	15.5	↑0.7
4/20 23:00	16.2	↑0.7
4/20 23:10	16.9	↑0.7
4/20 23:20	17.6	↑0.7
4/20 23:30	18.3	↑0.7
4/20 23:40	19.0	↑0.7
4/20 23:50	19.7	↑0.7