9 (水)	02:31	08:29	14:46	21:18
	25cm	15cm	27cm	13cm
中潮 出 05:40 入 17:03 出 15:38 入 03:07

留萌（北海道）2030年10月9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
10/9 00:00	19.5	↑0.6
10/9 00:10	20.0	↑0.5
10/9 00:20	20.6	↑0.6
10/9 00:30	21.1	↑0.5
10/9 00:40	21.6	↑0.5
10/9 00:50	22.0	↑0.4
10/9 01:00	22.4	↑0.4
10/9 01:10	22.8	↑0.4
10/9 01:20	23.1	↑0.3
10/9 01:30	23.4	↑0.3
10/9 01:40	23.6	↑0.2
10/9 01:50	23.8	↑0.2
10/9 02:00	23.9	↑0.1
10/9 02:10	24.0	↑0.1
10/9 02:20	24.1	↑0.1
10/9 02:30	24.1	0	満潮
10/9 02:40	24.1	0
10/9 02:50	24.0	↓-0.1
10/9 03:00	24.0	0
10/9 03:10	23.8	↓-0.2
10/9 03:20	23.7	↓-0.1
10/9 03:30	23.5	↓-0.2
10/9 03:40	23.3	↓-0.2
10/9 03:50	23.0	↓-0.3
10/9 04:00	22.8	↓-0.2
10/9 04:10	22.5	↓-0.3
10/9 04:20	22.1	↓-0.4
10/9 04:30	21.8	↓-0.3
10/9 04:40	21.4	↓-0.4
10/9 04:50	21.0	↓-0.4
10/9 05:00	20.6	↓-0.4
10/9 05:10	20.1	↓-0.5
10/9 05:20	19.7	↓-0.4
10/9 05:30	19.2	↓-0.5
10/9 05:40	18.8	↓-0.4
10/9 05:50	18.3	↓-0.5
10/9 06:00	17.8	↓-0.5
10/9 06:10	17.4	↓-0.4
10/9 06:20	17.0	↓-0.4
10/9 06:30	16.5	↓-0.5
10/9 06:40	16.2	↓-0.3
10/9 06:50	15.8	↓-0.4
10/9 07:00	15.5	↓-0.3
10/9 07:10	15.1	↓-0.4
10/9 07:20	14.9	↓-0.2
10/9 07:30	14.6	↓-0.3
10/9 07:40	14.4	↓-0.2
10/9 07:50	14.3	↓-0.1
10/9 08:00	14.2	↓-0.1
10/9 08:10	14.1	↓-0.1
10/9 08:20	14.0	↓-0.1	干潮
10/9 08:30	14.0	0
10/9 08:40	14.0	0
10/9 08:50	14.1	↑0.1
10/9 09:00	14.2	↑0.1
10/9 09:10	14.3	↑0.1
10/9 09:20	14.5	↑0.2
10/9 09:30	14.7	↑0.2
10/9 09:40	14.9	↑0.2
10/9 09:50	15.2	↑0.3
10/9 10:00	15.5	↑0.3
10/9 10:10	15.8	↑0.3
10/9 10:20	16.2	↑0.4
10/9 10:30	16.6	↑0.4
10/9 10:40	17.0	↑0.4
10/9 10:50	17.5	↑0.5
10/9 11:00	17.9	↑0.4
10/9 11:10	18.5	↑0.6
10/9 11:20	19.0	↑0.5
10/9 11:30	19.5	↑0.5
10/9 11:40	20.1	↑0.6
10/9 11:50	20.6	↑0.5
10/9 12:00	21.2	↑0.6
10/9 12:10	21.7	↑0.5
10/9 12:20	22.3	↑0.6
10/9 12:30	22.8	↑0.5
10/9 12:40	23.3	↑0.5
10/9 12:50	23.8	↑0.5
10/9 13:00	24.2	↑0.4
10/9 13:10	24.6	↑0.4
10/9 13:20	25.0	↑0.4
10/9 13:30	25.3	↑0.3
10/9 13:40	25.6	↑0.3
10/9 13:50	25.9	↑0.3
10/9 14:00	26.1	↑0.2
10/9 14:10	26.3	↑0.2
10/9 14:20	26.4	↑0.1
10/9 14:30	26.5	↑0.1
10/9 14:40	26.5	0	満潮
10/9 14:50	26.5	0
10/9 15:00	26.5	0
10/9 15:10	26.4	↓-0.1
10/9 15:20	26.3	↓-0.1
10/9 15:30	26.1	↓-0.2
10/9 15:40	25.9	↓-0.2
10/9 15:50	25.7	↓-0.2
10/9 16:00	25.5	↓-0.2
10/9 16:10	25.2	↓-0.3
10/9 16:20	24.8	↓-0.4
10/9 16:30	24.5	↓-0.3
10/9 16:40	24.1	↓-0.4
10/9 16:50	23.6	↓-0.5
10/9 17:00	23.2	↓-0.4
10/9 17:10	22.7	↓-0.5
10/9 17:20	22.2	↓-0.5
10/9 17:30	21.6	↓-0.6
10/9 17:40	21.0	↓-0.6
10/9 17:50	20.5	↓-0.5
10/9 18:00	19.9	↓-0.6
10/9 18:10	19.3	↓-0.6
10/9 18:20	18.6	↓-0.7	最大潮位差
10/9 18:30	18.0	↓-0.6
10/9 18:40	17.5	↓-0.5
10/9 18:50	16.9	↓-0.6
10/9 19:00	16.3	↓-0.6
10/9 19:10	15.8	↓-0.5
10/9 19:20	15.3	↓-0.5
10/9 19:30	14.8	↓-0.5
10/9 19:40	14.4	↓-0.4
10/9 19:50	14.0	↓-0.4
10/9 20:00	13.6	↓-0.4
10/9 20:10	13.3	↓-0.3
10/9 20:20	13.0	↓-0.3
10/9 20:30	12.8	↓-0.2
10/9 20:40	12.6	↓-0.2
10/9 20:50	12.5	↓-0.1
10/9 21:00	12.4	↓-0.1
10/9 21:10	12.3	↓-0.1	干潮
10/9 21:20	12.3	0
10/9 21:30	12.3	0
10/9 21:40	12.4	↑0.1
10/9 21:50	12.6	↑0.2
10/9 22:00	12.7	↑0.1
10/9 22:10	12.9	↑0.2
10/9 22:20	13.2	↑0.3
10/9 22:30	13.5	↑0.3
10/9 22:40	13.9	↑0.4
10/9 22:50	14.2	↑0.3
10/9 23:00	14.7	↑0.5
10/9 23:10	15.1	↑0.4
10/9 23:20	15.6	↑0.5
10/9 23:30	16.2	↑0.6
10/9 23:40	16.7	↑0.5
10/9 23:50	17.3	↑0.6