09 (金)	07:19	00:14	17:40	11:56
	12cm	-7cm	13cm	7cm
中潮 出 05:03 入 18:11 出 07:31 入 22:29

留萌（北海道）2038年04月09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
4/9 00:00	-7.7	↓-0.1
4/9 00:10	-7.8	↓-0.1	干潮
4/9 00:20	-7.7	↑0.1
4/9 00:30	-7.7	0
4/9 00:40	-7.6	↑0.1
4/9 00:50	-7.4	↑0.2
4/9 01:00	-7.2	↑0.2
4/9 01:10	-6.9	↑0.3
4/9 01:20	-6.6	↑0.3
4/9 01:30	-6.3	↑0.3
4/9 01:40	-5.9	↑0.4
4/9 01:50	-5.4	↑0.5
4/9 02:00	-5.0	↑0.4
4/9 02:10	-4.5	↑0.5
4/9 02:20	-3.9	↑0.6
4/9 02:30	-3.4	↑0.5
4/9 02:40	-2.8	↑0.6
4/9 02:50	-2.2	↑0.6
4/9 03:00	-1.5	↑0.7
4/9 03:10	-0.8	↑0.7
4/9 03:20	-0.1	↑0.7
4/9 03:30	0.6	↑0.7
4/9 03:40	1.3	↑0.7
4/9 03:50	2.0	↑0.7
4/9 04:00	2.8	↑0.8	最大潮位差
4/9 04:10	3.5	↑0.7
4/9 04:20	4.3	↑0.8	最大潮位差
4/9 04:30	5.0	↑0.7
4/9 04:40	5.7	↑0.7
4/9 04:50	6.4	↑0.7
4/9 05:00	7.0	↑0.6
4/9 05:10	7.7	↑0.7
4/9 05:20	8.2	↑0.5
4/9 05:30	8.8	↑0.6
4/9 05:40	9.3	↑0.5
4/9 05:50	9.8	↑0.5
4/9 06:00	10.2	↑0.4
4/9 06:10	10.5	↑0.3
4/9 06:20	10.8	↑0.3
4/9 06:30	11.1	↑0.3
4/9 06:40	11.3	↑0.2
4/9 06:50	11.5	↑0.2
4/9 07:00	11.6	↑0.1
4/9 07:10	11.6	0	満潮
4/9 07:20	11.6	0
4/9 07:30	11.6	0
4/9 07:40	11.5	↓-0.1
4/9 07:50	11.4	↓-0.1
4/9 08:00	11.3	↓-0.1
4/9 08:10	11.1	↓-0.2
4/9 08:20	10.9	↓-0.2
4/9 08:30	10.7	↓-0.2
4/9 08:40	10.4	↓-0.3
4/9 08:50	10.2	↓-0.2
4/9 09:00	9.9	↓-0.3
4/9 09:10	9.6	↓-0.3
4/9 09:20	9.3	↓-0.3
4/9 09:30	9.0	↓-0.3
4/9 09:40	8.7	↓-0.3
4/9 09:50	8.4	↓-0.3
4/9 10:00	8.1	↓-0.3
4/9 10:10	7.8	↓-0.3
4/9 10:20	7.5	↓-0.3
4/9 10:30	7.3	↓-0.2
4/9 10:40	7.1	↓-0.2
4/9 10:50	6.9	↓-0.2
4/9 11:00	6.7	↓-0.2
4/9 11:10	6.5	↓-0.2
4/9 11:20	6.4	↓-0.1
4/9 11:30	6.3	↓-0.1
4/9 11:40	6.3	0
4/9 11:50	6.2	↓-0.1	干潮
4/9 12:00	6.2	0
4/9 12:10	6.3	↑0.1
4/9 12:20	6.3	0
4/9 12:30	6.4	↑0.1
4/9 12:40	6.5	↑0.1
4/9 12:50	6.6	↑0.1
4/9 13:00	6.8	↑0.2
4/9 13:10	7.0	↑0.2
4/9 13:20	7.1	↑0.1
4/9 13:30	7.3	↑0.2
4/9 13:40	7.5	↑0.2
4/9 13:50	7.8	↑0.3
4/9 14:00	8.0	↑0.2
4/9 14:10	8.2	↑0.2
4/9 14:20	8.5	↑0.3
4/9 14:30	8.7	↑0.2
4/9 14:40	9.0	↑0.3
4/9 14:50	9.3	↑0.3
4/9 15:00	9.5	↑0.2
4/9 15:10	9.8	↑0.3
4/9 15:20	10.1	↑0.3
4/9 15:30	10.3	↑0.2
4/9 15:40	10.6	↑0.3
4/9 15:50	10.9	↑0.3
4/9 16:00	11.1	↑0.2
4/9 16:10	11.4	↑0.3
4/9 16:20	11.6	↑0.2
4/9 16:30	11.8	↑0.2
4/9 16:40	12.0	↑0.2
4/9 16:50	12.2	↑0.2
4/9 17:00	12.3	↑0.1
4/9 17:10	12.5	↑0.2
4/9 17:20	12.6	↑0.1
4/9 17:30	12.6	0	満潮
4/9 17:40	12.6	0	満潮
4/9 17:50	12.6	0
4/9 18:00	12.6	0
4/9 18:10	12.4	↓-0.2
4/9 18:20	12.3	↓-0.1
4/9 18:30	12.1	↓-0.2
4/9 18:40	11.8	↓-0.3
4/9 18:50	11.5	↓-0.3
4/9 19:00	11.2	↓-0.3
4/9 19:10	10.8	↓-0.4
4/9 19:20	10.3	↓-0.5
4/9 19:30	9.9	↓-0.4
4/9 19:40	9.3	↓-0.6
4/9 19:50	8.8	↓-0.5
4/9 20:00	8.2	↓-0.6
4/9 20:10	7.6	↓-0.6
4/9 20:20	6.9	↓-0.7
4/9 20:30	6.3	↓-0.6
4/9 20:40	5.6	↓-0.7
4/9 20:50	4.9	↓-0.7
4/9 21:00	4.1	↓-0.8	最大潮位差
4/9 21:10	3.4	↓-0.7
4/9 21:20	2.7	↓-0.7
4/9 21:30	2.0	↓-0.7
4/9 21:40	1.2	↓-0.8	最大潮位差
4/9 21:50	0.5	↓-0.7
4/9 22:00	-0.2	↓-0.7
4/9 22:10	-0.9	↓-0.7
4/9 22:20	-1.6	↓-0.7
4/9 22:30	-2.2	↓-0.6
4/9 22:40	-2.8	↓-0.6
4/9 22:50	-3.4	↓-0.6
4/9 23:00	-3.9	↓-0.5
4/9 23:10	-4.4	↓-0.5
4/9 23:20	-4.9	↓-0.5
4/9 23:30	-5.3	↓-0.4
4/9 23:40	-5.7	↓-0.4
4/9 23:50	-6.0	↓-0.3