20 (金)	03:36	09:20	14:27	21:27
	23cm	11cm	20cm	-3cm
大潮 出 04:53 入 18:26 出 18:05 入 04:00

江差／桧山（北海道）2046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	10.9	↑0.8
4/20 00:10	11.8	↑0.9	最大潮位差
4/20 00:20	12.6	↑0.8
4/20 00:30	13.4	↑0.8
4/20 00:40	14.2	↑0.8
4/20 00:50	15.0	↑0.8
4/20 01:00	15.7	↑0.7
4/20 01:10	16.5	↑0.8
4/20 01:20	17.2	↑0.7
4/20 01:30	17.8	↑0.6
4/20 01:40	18.5	↑0.7
4/20 01:50	19.1	↑0.6
4/20 02:00	19.6	↑0.5
4/20 02:10	20.1	↑0.5
4/20 02:20	20.5	↑0.4
4/20 02:30	20.9	↑0.4
4/20 02:40	21.2	↑0.3
4/20 02:50	21.5	↑0.3
4/20 03:00	21.7	↑0.2
4/20 03:10	21.9	↑0.2
4/20 03:20	22.0	↑0.1
4/20 03:30	22.1	↑0.1	満潮
4/20 03:40	22.1	0
4/20 03:50	22.0	↓-0.1
4/20 04:00	21.9	↓-0.1
4/20 04:10	21.8	↓-0.1
4/20 04:20	21.6	↓-0.2
4/20 04:30	21.3	↓-0.3
4/20 04:40	21.0	↓-0.3
4/20 04:50	20.7	↓-0.3
4/20 05:00	20.3	↓-0.4
4/20 05:10	19.9	↓-0.4
4/20 05:20	19.5	↓-0.4
4/20 05:30	19.0	↓-0.5
4/20 05:40	18.5	↓-0.5
4/20 05:50	18.0	↓-0.5
4/20 06:00	17.5	↓-0.5
4/20 06:10	17.0	↓-0.5
4/20 06:20	16.4	↓-0.6
4/20 06:30	15.9	↓-0.5
4/20 06:40	15.4	↓-0.5
4/20 06:50	14.9	↓-0.5
4/20 07:00	14.4	↓-0.5
4/20 07:10	13.9	↓-0.5
4/20 07:20	13.4	↓-0.5
4/20 07:30	13.0	↓-0.4
4/20 07:40	12.5	↓-0.5
4/20 07:50	12.2	↓-0.3
4/20 08:00	11.8	↓-0.4
4/20 08:10	11.5	↓-0.3
4/20 08:20	11.2	↓-0.3
4/20 08:30	11.0	↓-0.2
4/20 08:40	10.8	↓-0.2
4/20 08:50	10.6	↓-0.2
4/20 09:00	10.5	↓-0.1
4/20 09:10	10.5	0	干潮
4/20 09:20	10.5	0	干潮
4/20 09:30	10.5	0
4/20 09:40	10.6	↑0.1
4/20 09:50	10.7	↑0.1
4/20 10:00	10.8	↑0.1
4/20 10:10	11.0	↑0.2
4/20 10:20	11.3	↑0.3
4/20 10:30	11.5	↑0.2
4/20 10:40	11.8	↑0.3
4/20 10:50	12.2	↑0.4
4/20 11:00	12.5	↑0.3
4/20 11:10	12.9	↑0.4
4/20 11:20	13.3	↑0.4
4/20 11:30	13.7	↑0.4
4/20 11:40	14.2	↑0.5
4/20 11:50	14.6	↑0.4
4/20 12:00	15.1	↑0.5
4/20 12:10	15.5	↑0.4
4/20 12:20	15.9	↑0.4
4/20 12:30	16.4	↑0.5
4/20 12:40	16.8	↑0.4
4/20 12:50	17.2	↑0.4
4/20 13:00	17.5	↑0.3
4/20 13:10	17.9	↑0.4
4/20 13:20	18.2	↑0.3
4/20 13:30	18.5	↑0.3
4/20 13:40	18.7	↑0.2
4/20 13:50	18.9	↑0.2
4/20 14:00	19.0	↑0.1
4/20 14:10	19.1	↑0.1
4/20 14:20	19.2	↑0.1	満潮
4/20 14:30	19.2	0
4/20 14:40	19.2	0
4/20 14:50	19.0	↓-0.2
4/20 15:00	18.9	↓-0.1
4/20 15:10	18.7	↓-0.2
4/20 15:20	18.4	↓-0.3
4/20 15:30	18.1	↓-0.3
4/20 15:40	17.7	↓-0.4
4/20 15:50	17.3	↓-0.4
4/20 16:00	16.8	↓-0.5
4/20 16:10	16.3	↓-0.5
4/20 16:20	15.7	↓-0.6
4/20 16:30	15.1	↓-0.6
4/20 16:40	14.4	↓-0.7
4/20 16:50	13.7	↓-0.7
4/20 17:00	12.9	↓-0.8
4/20 17:10	12.2	↓-0.7
4/20 17:20	11.4	↓-0.8
4/20 17:30	10.6	↓-0.8
4/20 17:40	9.7	↓-0.9	最大潮位差
4/20 17:50	8.9	↓-0.8
4/20 18:00	8.0	↓-0.9	最大潮位差
4/20 18:10	7.2	↓-0.8
4/20 18:20	6.3	↓-0.9	最大潮位差
4/20 18:30	5.5	↓-0.8
4/20 18:40	4.6	↓-0.9	最大潮位差
4/20 18:50	3.8	↓-0.8
4/20 19:00	3.0	↓-0.8
4/20 19:10	2.2	↓-0.8
4/20 19:20	1.5	↓-0.7
4/20 19:30	0.8	↓-0.7
4/20 19:40	0.1	↓-0.7
4/20 19:50	-0.5	↓-0.6
4/20 20:00	-1.1	↓-0.6
4/20 20:10	-1.6	↓-0.5
4/20 20:20	-2.0	↓-0.4
4/20 20:30	-2.4	↓-0.4
4/20 20:40	-2.8	↓-0.4
4/20 20:50	-3.1	↓-0.3
4/20 21:00	-3.3	↓-0.2
4/20 21:10	-3.4	↓-0.1
4/20 21:20	-3.5	↓-0.1	干潮
4/20 21:30	-3.5	0
4/20 21:40	-3.4	↑0.1
4/20 21:50	-3.3	↑0.1
4/20 22:00	-3.1	↑0.2
4/20 22:10	-2.8	↑0.3
4/20 22:20	-2.5	↑0.3
4/20 22:30	-2.1	↑0.4
4/20 22:40	-1.7	↑0.4
4/20 22:50	-1.2	↑0.5
4/20 23:00	-0.6	↑0.6
4/20 23:10	0.0	↑0.6
4/20 23:20	0.7	0
4/20 23:30	1.4	↑0.7
4/20 23:40	2.1	↑0.7
4/20 23:50	2.9	↑0.8