09 (火)	09:25	01:20	17:18	11:25
	13cm	-5cm	15cm	12cm
小潮 出 05:03 入 18:11 出 08:34 入 -

留萌（北海道）2030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	-3.7	↓-0.4
4/9 00:10	-4.0	↓-0.3
4/9 00:20	-4.3	↓-0.3
4/9 00:30	-4.5	↓-0.2
4/9 00:40	-4.7	↓-0.2
4/9 00:50	-4.9	↓-0.2
4/9 01:00	-5.0	↓-0.1
4/9 01:10	-5.0	0	干潮
4/9 01:20	-5.0	0	干潮
4/9 01:30	-5.0	0
4/9 01:40	-4.9	↑0.1
4/9 01:50	-4.8	↑0.1
4/9 02:00	-4.7	↑0.1
4/9 02:10	-4.5	↑0.2
4/9 02:20	-4.3	↑0.2
4/9 02:30	-4.1	↑0.2
4/9 02:40	-3.8	↑0.3
4/9 02:50	-3.5	↑0.3
4/9 03:00	-3.1	↑0.4
4/9 03:10	-2.7	↑0.4
4/9 03:20	-2.3	↑0.4
4/9 03:30	-1.9	↑0.4
4/9 03:40	-1.4	↑0.5
4/9 03:50	-0.9	↑0.5
4/9 04:00	-0.4	↑0.5
4/9 04:10	0.1	↑0.5
4/9 04:20	0.7	↑0.6
4/9 04:30	1.3	↑0.6
4/9 04:40	1.8	↑0.5
4/9 04:50	2.4	↑0.6
4/9 05:00	3.0	↑0.6
4/9 05:10	3.7	↑0.7	最大潮位差
4/9 05:20	4.3	↑0.6
4/9 05:30	4.9	↑0.6
4/9 05:40	5.5	↑0.6
4/9 05:50	6.0	↑0.5
4/9 06:00	6.6	↑0.6
4/9 06:10	7.1	↑0.5
4/9 06:20	7.7	↑0.6
4/9 06:30	8.2	↑0.5
4/9 06:40	8.6	↑0.4
4/9 06:50	9.1	↑0.5
4/9 07:00	9.5	↑0.4
4/9 07:10	9.9	↑0.4
4/9 07:20	10.2	↑0.3
4/9 07:30	10.5	↑0.3
4/9 07:40	10.8	↑0.3
4/9 07:50	11.0	↑0.2
4/9 08:00	11.3	↑0.3
4/9 08:10	11.4	↑0.1
4/9 08:20	11.6	↑0.2
4/9 08:30	11.7	↑0.1
4/9 08:40	11.8	↑0.1
4/9 08:50	11.9	↑0.1
4/9 09:00	12.0	↑0.1
4/9 09:10	12.0	0
4/9 09:20	12.0	0	満潮
4/9 09:30	12.0	0
4/9 09:40	12.0	0
4/9 09:50	12.0	0
4/9 10:00	11.9	↓-0.1
4/9 10:10	11.9	0
4/9 10:20	11.8	↓-0.1
4/9 10:30	11.8	0
4/9 10:40	11.8	0
4/9 10:50	11.7	↓-0.1
4/9 11:00	11.7	0
4/9 11:10	11.7	0
4/9 11:20	11.7	0	干潮
4/9 11:30	11.7	0
4/9 11:40	11.7	0
4/9 11:50	11.7	0
4/9 12:00	11.7	0
4/9 12:10	11.8	↑0.1
4/9 12:20	11.9	↑0.1
4/9 12:30	12.0	↑0.1
4/9 12:40	12.1	↑0.1
4/9 12:50	12.2	↑0.1
4/9 13:00	12.3	↑0.1
4/9 13:10	12.4	↑0.1
4/9 13:20	12.6	↑0.2
4/9 13:30	12.7	↑0.1
4/9 13:40	12.8	↑0.1
4/9 13:50	13.0	↑0.2
4/9 14:00	13.1	↑0.1
4/9 14:10	13.3	↑0.2
4/9 14:20	13.4	↑0.1
4/9 14:30	13.5	↑0.1
4/9 14:40	13.6	↑0.1
4/9 14:50	13.8	↑0.2
4/9 15:00	13.9	↑0.1
4/9 15:10	14.0	↑0.1
4/9 15:20	14.1	↑0.1
4/9 15:30	14.2	↑0.1
4/9 15:40	14.2	0
4/9 15:50	14.3	↑0.1
4/9 16:00	14.4	↑0.1
4/9 16:10	14.5	↑0.1
4/9 16:20	14.5	0
4/9 16:30	14.6	↑0.1
4/9 16:40	14.6	0
4/9 16:50	14.6	0
4/9 17:00	14.7	↑0.1
4/9 17:10	14.7	0	満潮
4/9 17:20	14.7	0
4/9 17:30	14.7	0
4/9 17:40	14.6	↓-0.1
4/9 17:50	14.6	0
4/9 18:00	14.5	↓-0.1
4/9 18:10	14.5	0
4/9 18:20	14.4	↓-0.1
4/9 18:30	14.2	↓-0.2
4/9 18:40	14.1	↓-0.1
4/9 18:50	13.9	↓-0.2
4/9 19:00	13.7	↓-0.2
4/9 19:10	13.5	↓-0.2
4/9 19:20	13.2	↓-0.3
4/9 19:30	12.9	↓-0.3
4/9 19:40	12.6	↓-0.3
4/9 19:50	12.2	↓-0.4
4/9 20:00	11.9	↓-0.3
4/9 20:10	11.5	↓-0.4
4/9 20:20	11.0	↓-0.5
4/9 20:30	10.6	↓-0.4
4/9 20:40	10.1	↓-0.5
4/9 20:50	9.6	↓-0.5
4/9 21:00	9.1	↓-0.5
4/9 21:10	8.5	↓-0.6
4/9 21:20	8.0	↓-0.5
4/9 21:30	7.4	↓-0.6
4/9 21:40	6.8	↓-0.6
4/9 21:50	6.2	↓-0.6
4/9 22:00	5.6	↓-0.6
4/9 22:10	5.0	↓-0.6
4/9 22:20	4.4	↓-0.6
4/9 22:30	3.8	↓-0.6
4/9 22:40	3.2	↓-0.6
4/9 22:50	2.6	↓-0.6
4/9 23:00	2.0	↓-0.6
4/9 23:10	1.4	↓-0.6
4/9 23:20	0.9	↓-0.5
4/9 23:30	0.4	↓-0.5
4/9 23:40	-0.1	↓-0.5
4/9 23:50	-0.6	↓-0.5