11 (土)	02:50	08:06	11:40	19:06
	26cm	22cm	24cm	14cm
長潮 出 05:42 入 17:00 出 00:19 入 14:10

留萌（北海道）2031年10月11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
10/11 00:00	23.5	↑0.2
10/11 00:10	23.7	↑0.2
10/11 00:20	23.9	↑0.2
10/11 00:30	24.0	↑0.1
10/11 00:40	24.2	↑0.2
10/11 00:50	24.3	↑0.1
10/11 01:00	24.5	↑0.2
10/11 01:10	24.6	↑0.1
10/11 01:20	24.7	↑0.1
10/11 01:30	24.8	↑0.1
10/11 01:40	24.9	↑0.1
10/11 01:50	25.0	↑0.1
10/11 02:00	25.1	↑0.1
10/11 02:10	25.1	0
10/11 02:20	25.2	↑0.1
10/11 02:30	25.2	0
10/11 02:40	25.2	0	満潮
10/11 02:50	25.2	0	満潮
10/11 03:00	25.2	0
10/11 03:10	25.2	0
10/11 03:20	25.2	0
10/11 03:30	25.1	↓-0.1
10/11 03:40	25.0	↓-0.1
10/11 03:50	24.9	↓-0.1
10/11 04:00	24.8	↓-0.1
10/11 04:10	24.6	↓-0.2
10/11 04:20	24.5	↓-0.1
10/11 04:30	24.3	↓-0.2
10/11 04:40	24.1	↓-0.2
10/11 04:50	24.0	↓-0.1
10/11 05:00	23.8	↓-0.2
10/11 05:10	23.6	↓-0.2
10/11 05:20	23.4	↓-0.2
10/11 05:30	23.2	↓-0.2
10/11 05:40	23.0	↓-0.2
10/11 05:50	22.8	↓-0.2
10/11 06:00	22.7	↓-0.1
10/11 06:10	22.5	↓-0.2
10/11 06:20	22.4	↓-0.1
10/11 06:30	22.2	↓-0.2
10/11 06:40	22.1	↓-0.1
10/11 06:50	22.0	↓-0.1
10/11 07:00	21.9	↓-0.1
10/11 07:10	21.8	↓-0.1
10/11 07:20	21.8	0
10/11 07:30	21.7	↓-0.1
10/11 07:40	21.7	0
10/11 07:50	21.6	↓-0.1
10/11 08:00	21.6	0	干潮
10/11 08:10	21.6	0
10/11 08:20	21.6	0
10/11 08:30	21.7	↑0.1
10/11 08:40	21.7	0
10/11 08:50	21.8	↑0.1
10/11 09:00	21.8	0
10/11 09:10	21.9	↑0.1
10/11 09:20	22.0	↑0.1
10/11 09:30	22.1	↑0.1
10/11 09:40	22.2	↑0.1
10/11 09:50	22.3	↑0.1
10/11 10:00	22.5	↑0.2
10/11 10:10	22.6	↑0.1
10/11 10:20	22.7	↑0.1
10/11 10:30	22.8	↑0.1
10/11 10:40	22.9	↑0.1
10/11 10:50	23.0	↑0.1
10/11 11:00	23.1	↑0.1
10/11 11:10	23.2	↑0.1
10/11 11:20	23.3	↑0.1
10/11 11:30	23.3	0	満潮
10/11 11:40	23.3	0	満潮
10/11 11:50	23.3	0
10/11 12:00	23.2	↓-0.1
10/11 12:10	23.2	0
10/11 12:20	23.1	↓-0.1
10/11 12:30	23.0	↓-0.1
10/11 12:40	22.8	↓-0.2
10/11 12:50	22.7	↓-0.1
10/11 13:00	22.5	↓-0.2
10/11 13:10	22.3	↓-0.2
10/11 13:20	22.1	↓-0.2
10/11 13:30	21.9	↓-0.2
10/11 13:40	21.7	↓-0.2
10/11 13:50	21.4	↓-0.3
10/11 14:00	21.2	↓-0.2
10/11 14:10	20.9	↓-0.3
10/11 14:20	20.7	↓-0.2
10/11 14:30	20.4	↓-0.3
10/11 14:40	20.1	↓-0.3
10/11 14:50	19.8	↓-0.3
10/11 15:00	19.5	↓-0.3
10/11 15:10	19.2	↓-0.3
10/11 15:20	18.9	↓-0.3
10/11 15:30	18.6	↓-0.3
10/11 15:40	18.2	↓-0.4
10/11 15:50	17.9	↓-0.3
10/11 16:00	17.6	↓-0.3
10/11 16:10	17.2	↓-0.4
10/11 16:20	16.9	↓-0.3
10/11 16:30	16.5	↓-0.4
10/11 16:40	16.2	↓-0.3
10/11 16:50	15.9	↓-0.3
10/11 17:00	15.6	↓-0.3
10/11 17:10	15.2	↓-0.4
10/11 17:20	15.0	↓-0.2
10/11 17:30	14.7	↓-0.3
10/11 17:40	14.4	↓-0.3
10/11 17:50	14.2	↓-0.2
10/11 18:00	14.0	↓-0.2
10/11 18:10	13.8	↓-0.2
10/11 18:20	13.7	↓-0.1
10/11 18:30	13.5	↓-0.2
10/11 18:40	13.5	0
10/11 18:50	13.4	↓-0.1
10/11 19:00	13.4	0	干潮
10/11 19:10	13.4	0
10/11 19:20	13.4	0
10/11 19:30	13.5	↑0.1
10/11 19:40	13.5	0
10/11 19:50	13.6	↑0.1
10/11 20:00	13.8	↑0.2
10/11 20:10	13.9	↑0.1
10/11 20:20	14.1	↑0.2
10/11 20:30	14.3	↑0.2
10/11 20:40	14.6	↑0.3
10/11 20:50	14.8	↑0.2
10/11 21:00	15.1	↑0.3
10/11 21:10	15.4	↑0.3
10/11 21:20	15.7	↑0.3
10/11 21:30	16.0	↑0.3
10/11 21:40	16.4	↑0.4
10/11 21:50	16.8	↑0.4
10/11 22:00	17.2	↑0.4
10/11 22:10	17.6	↑0.4
10/11 22:20	18.0	↑0.4
10/11 22:30	18.4	↑0.4
10/11 22:40	18.8	↑0.4
10/11 22:50	19.2	↑0.4
10/11 23:00	19.6	↑0.4
10/11 23:10	20.1	↑0.5	最大潮位差
10/11 23:20	20.4	↑0.3
10/11 23:30	20.8	↑0.4
10/11 23:40	21.2	↑0.4
10/11 23:50	21.5	↑0.3