20 (水)	07:22	11:46	17:01	-
	17cm	11cm	18cm	-
中潮 出 04:44 入 18:24 出 22:54 入 06:40

留萌（北海道）2022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	-12.8	0
4/20 00:10	-12.7	↑0.1
4/20 00:20	-12.6	↑0.1
4/20 00:30	-12.3	↑0.3
4/20 00:40	-12.1	↑0.2
4/20 00:50	-11.7	↑0.4
4/20 01:00	-11.3	↑0.4
4/20 01:10	-10.9	↑0.4
4/20 01:20	-10.3	↑0.6
4/20 01:30	-9.7	↑0.6
4/20 01:40	-9.1	↑0.6
4/20 01:50	-8.4	↑0.7
4/20 02:00	-7.6	↑0.8
4/20 02:10	-6.8	↑0.8
4/20 02:20	-6.0	↑0.8
4/20 02:30	-5.1	↑0.9
4/20 02:40	-4.1	↑1.0
4/20 02:50	-3.2	↑0.9
4/20 03:00	-2.1	↑1.1	最大潮位差
4/20 03:10	-1.1	↑1.0
4/20 03:20	0.0	↑1.1	最大潮位差
4/20 03:30	1.1	0
4/20 03:40	2.1	↑1.0
4/20 03:50	3.2	↑1.1	最大潮位差
4/20 04:00	4.3	↑1.1	最大潮位差
4/20 04:10	5.4	↑1.1	最大潮位差
4/20 04:20	6.5	↑1.1	最大潮位差
4/20 04:30	7.5	↑1.0
4/20 04:40	8.5	↑1.0
4/20 04:50	9.5	↑1.0
4/20 05:00	10.4	↑0.9
4/20 05:10	11.3	↑0.9
4/20 05:20	12.1	↑0.8
4/20 05:30	12.9	↑0.8
4/20 05:40	13.6	↑0.7
4/20 05:50	14.2	↑0.6
4/20 06:00	14.8	↑0.6
4/20 06:10	15.3	↑0.5
4/20 06:20	15.7	↑0.4
4/20 06:30	16.1	↑0.4
4/20 06:40	16.3	↑0.2
4/20 06:50	16.6	↑0.3
4/20 07:00	16.7	↑0.1
4/20 07:10	16.8	↑0.1
4/20 07:20	16.8	0	満潮
4/20 07:30	16.8	0
4/20 07:40	16.8	0
4/20 07:50	16.6	↓-0.2
4/20 08:00	16.5	↓-0.1
4/20 08:10	16.3	↓-0.2
4/20 08:20	16.0	↓-0.3
4/20 08:30	15.7	↓-0.3
4/20 08:40	15.4	↓-0.3
4/20 08:50	15.1	↓-0.3
4/20 09:00	14.8	↓-0.3
4/20 09:10	14.4	↓-0.4
4/20 09:20	14.0	↓-0.4
4/20 09:30	13.7	↓-0.3
4/20 09:40	13.3	↓-0.4
4/20 09:50	12.9	↓-0.4
4/20 10:00	12.6	↓-0.3
4/20 10:10	12.3	↓-0.3
4/20 10:20	11.9	↓-0.4
4/20 10:30	11.7	↓-0.2
4/20 10:40	11.4	↓-0.3
4/20 10:50	11.2	↓-0.2
4/20 11:00	11.0	↓-0.2
4/20 11:10	10.8	↓-0.2
4/20 11:20	10.7	↓-0.1
4/20 11:30	10.6	↓-0.1
4/20 11:40	10.6	0	干潮
4/20 11:50	10.6	0
4/20 12:00	10.6	0
4/20 12:10	10.7	↑0.1
4/20 12:20	10.8	↑0.1
4/20 12:30	10.9	↑0.1
4/20 12:40	11.1	↑0.2
4/20 12:50	11.3	↑0.2
4/20 13:00	11.5	↑0.2
4/20 13:10	11.8	↑0.3
4/20 13:20	12.0	↑0.2
4/20 13:30	12.3	↑0.3
4/20 13:40	12.6	↑0.3
4/20 13:50	12.9	↑0.3
4/20 14:00	13.2	↑0.3
4/20 14:10	13.5	↑0.3
4/20 14:20	13.9	↑0.4
4/20 14:30	14.2	↑0.3
4/20 14:40	14.5	↑0.3
4/20 14:50	14.9	↑0.4
4/20 15:00	15.2	↑0.3
4/20 15:10	15.5	↑0.3
4/20 15:20	15.9	↑0.4
4/20 15:30	16.2	↑0.3
4/20 15:40	16.5	↑0.3
4/20 15:50	16.7	↑0.2
4/20 16:00	17.0	↑0.3
4/20 16:10	17.2	↑0.2
4/20 16:20	17.4	↑0.2
4/20 16:30	17.6	↑0.2
4/20 16:40	17.7	↑0.1
4/20 16:50	17.8	↑0.1
4/20 17:00	17.8	0	満潮
4/20 17:10	17.8	0
4/20 17:20	17.7	↓-0.1
4/20 17:30	17.5	↓-0.2
4/20 17:40	17.3	↓-0.2
4/20 17:50	17.1	↓-0.2
4/20 18:00	16.8	↓-0.3
4/20 18:10	16.4	↓-0.4
4/20 18:20	16.0	↓-0.4
4/20 18:30	15.5	↓-0.5
4/20 18:40	14.9	↓-0.6
4/20 18:50	14.3	↓-0.6
4/20 19:00	13.6	↓-0.7
4/20 19:10	12.9	↓-0.7
4/20 19:20	12.2	↓-0.7
4/20 19:30	11.4	↓-0.8
4/20 19:40	10.5	↓-0.9
4/20 19:50	9.6	↓-0.9
4/20 20:00	8.7	↓-0.9
4/20 20:10	7.8	↓-0.9
4/20 20:20	6.8	↓-1.0
4/20 20:30	5.9	↓-0.9
4/20 20:40	4.9	↓-1.0
4/20 20:50	3.9	↓-1.0
4/20 21:00	2.9	↓-1.0
4/20 21:10	1.9	↓-1.0
4/20 21:20	0.9	↓-1.0
4/20 21:30	-0.1	↓-1.0
4/20 21:40	-1.1	↓-1.0
4/20 21:50	-2.0	↓-0.9
4/20 22:00	-2.9	↓-0.9
4/20 22:10	-3.8	↓-0.9
4/20 22:20	-4.7	↓-0.9
4/20 22:30	-5.5	↓-0.8
4/20 22:40	-6.3	↓-0.8
4/20 22:50	-7.1	↓-0.8
4/20 23:00	-7.8	↓-0.7
4/20 23:10	-8.4	↓-0.6
4/20 23:20	-9.0	↓-0.6
4/20 23:30	-9.5	↓-0.5
4/20 23:40	-9.9	↓-0.4
4/20 23:50	-10.3	↓-0.4