20 (火)	06:39	09:38	16:25	-
	14cm	13cm	31cm	-
中潮 出 04:52 入 18:26 出 21:09 入 05:53

江差／桧山（北海道）2049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	-6.5	↑0.2
4/20 00:10	-6.3	↑0.2
4/20 00:20	-6.0	↑0.3
4/20 00:30	-5.6	↑0.4
4/20 00:40	-5.2	↑0.4
4/20 00:50	-4.7	↑0.5
4/20 01:00	-4.2	↑0.5
4/20 01:10	-3.6	↑0.6
4/20 01:20	-3.0	↑0.6
4/20 01:30	-2.3	↑0.7
4/20 01:40	-1.6	↑0.7
4/20 01:50	-0.9	↑0.7
4/20 02:00	-0.2	↑0.7
4/20 02:10	0.6	↑0.8
4/20 02:20	1.4	↑0.8
4/20 02:30	2.2	↑0.8
4/20 02:40	2.9	↑0.7
4/20 02:50	3.7	↑0.8
4/20 03:00	4.5	↑0.8
4/20 03:10	5.3	↑0.8
4/20 03:20	6.1	↑0.8
4/20 03:30	6.8	↑0.7
4/20 03:40	7.5	↑0.7
4/20 03:50	8.2	↑0.7
4/20 04:00	8.9	↑0.7
4/20 04:10	9.5	↑0.6
4/20 04:20	10.1	↑0.6
4/20 04:30	10.6	↑0.5
4/20 04:40	11.2	↑0.6
4/20 04:50	11.6	↑0.4
4/20 05:00	12.1	↑0.5
4/20 05:10	12.4	↑0.3
4/20 05:20	12.8	↑0.4
4/20 05:30	13.1	↑0.3
4/20 05:40	13.3	↑0.2
4/20 05:50	13.5	↑0.2
4/20 06:00	13.7	↑0.2
4/20 06:10	13.8	↑0.1
4/20 06:20	13.9	↑0.1
4/20 06:30	13.9	0	満潮
4/20 06:40	13.9	0
4/20 06:50	13.9	0
4/20 07:00	13.9	0
4/20 07:10	13.8	↓-0.1
4/20 07:20	13.7	↓-0.1
4/20 07:30	13.6	↓-0.1
4/20 07:40	13.5	↓-0.1
4/20 07:50	13.3	↓-0.2
4/20 08:00	13.2	↓-0.1
4/20 08:10	13.0	↓-0.2
4/20 08:20	12.9	↓-0.1
4/20 08:30	12.7	↓-0.2
4/20 08:40	12.6	↓-0.1
4/20 08:50	12.5	↓-0.1
4/20 09:00	12.3	↓-0.2
4/20 09:10	12.3	0
4/20 09:20	12.2	↓-0.1
4/20 09:30	12.2	0	干潮
4/20 09:40	12.2	0
4/20 09:50	12.2	0
4/20 10:00	12.2	0
4/20 10:10	12.3	↑0.1
4/20 10:20	12.5	↑0.2
4/20 10:30	12.6	↑0.1
4/20 10:40	12.9	↑0.3
4/20 10:50	13.1	↑0.2
4/20 11:00	13.4	↑0.3
4/20 11:10	13.8	↑0.4
4/20 11:20	14.2	↑0.4
4/20 11:30	14.6	↑0.4
4/20 11:40	15.0	↑0.4
4/20 11:50	15.5	↑0.5
4/20 12:00	16.1	↑0.6
4/20 12:10	16.6	↑0.5
4/20 12:20	17.2	↑0.6
4/20 12:30	17.9	↑0.7
4/20 12:40	18.5	↑0.6
4/20 12:50	19.2	↑0.7
4/20 13:00	19.9	↑0.7
4/20 13:10	20.6	↑0.7
4/20 13:20	21.3	↑0.7
4/20 13:30	22.0	↑0.7
4/20 13:40	22.7	↑0.7
4/20 13:50	23.4	↑0.7
4/20 14:00	24.1	↑0.7
4/20 14:10	24.8	↑0.7
4/20 14:20	25.5	↑0.7
4/20 14:30	26.1	↑0.6
4/20 14:40	26.7	↑0.6
4/20 14:50	27.2	↑0.5
4/20 15:00	27.8	↑0.6
4/20 15:10	28.2	↑0.4
4/20 15:20	28.7	↑0.5
4/20 15:30	29.1	↑0.4
4/20 15:40	29.4	↑0.3
4/20 15:50	29.6	↑0.2
4/20 16:00	29.8	↑0.2
4/20 16:10	30.0	↑0.2
4/20 16:20	30.0	0	満潮
4/20 16:30	30.0	0
4/20 16:40	30.0	0
4/20 16:50	29.8	↓-0.2
4/20 17:00	29.6	↓-0.2
4/20 17:10	29.3	↓-0.3
4/20 17:20	28.9	↓-0.4
4/20 17:30	28.5	↓-0.4
4/20 17:40	27.9	↓-0.6
4/20 17:50	27.4	↓-0.5
4/20 18:00	26.7	↓-0.7
4/20 18:10	26.0	↓-0.7
4/20 18:20	25.2	↓-0.8
4/20 18:30	24.3	↓-0.9
4/20 18:40	23.4	↓-0.9
4/20 18:50	22.5	↓-0.9
4/20 19:00	21.4	↓-1.1
4/20 19:10	20.4	↓-1.0
4/20 19:20	19.3	↓-1.1
4/20 19:30	18.2	↓-1.1
4/20 19:40	17.0	↓-1.2
4/20 19:50	15.8	↓-1.2
4/20 20:00	14.6	↓-1.2
4/20 20:10	13.4	↓-1.2
4/20 20:20	12.1	↓-1.3	最大潮位差
4/20 20:30	10.9	↓-1.2
4/20 20:40	9.7	↓-1.2
4/20 20:50	8.5	↓-1.2
4/20 21:00	7.3	↓-1.2
4/20 21:10	6.1	↓-1.2
4/20 21:20	4.9	↓-1.2
4/20 21:30	3.8	↓-1.1
4/20 21:40	2.7	↓-1.1
4/20 21:50	1.6	↓-1.1
4/20 22:00	0.6	↓-1.0
4/20 22:10	-0.3	↓-0.9
4/20 22:20	-1.2	↓-0.9
4/20 22:30	-2.0	↓-0.8
4/20 22:40	-2.8	↓-0.8
4/20 22:50	-3.5	↓-0.7
4/20 23:00	-4.2	↓-0.7
4/20 23:10	-4.8	↓-0.6
4/20 23:20	-5.3	↓-0.5
4/20 23:30	-5.7	↓-0.4
4/20 23:40	-6.1	↓-0.4
4/20 23:50	-6.4	↓-0.3