31 (木)	11:40	05:50	23:17	17:10
	15cm	8cm	19cm	11cm
長潮 出 07:07 入 16:08 出 00:49 入 12:27

留萌（北海道）2037年12月31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
12/31 00:00	16.8	↓-0.3
12/31 00:10	16.6	↓-0.2
12/31 00:20	16.3	↓-0.3
12/31 00:30	16.0	↓-0.3
12/31 00:40	15.7	↓-0.3
12/31 00:50	15.4	↓-0.3
12/31 01:00	15.1	↓-0.3
12/31 01:10	14.7	↓-0.4	最大潮位差
12/31 01:20	14.4	↓-0.3
12/31 01:30	14.1	↓-0.3
12/31 01:40	13.7	↓-0.4	最大潮位差
12/31 01:50	13.4	↓-0.3
12/31 02:00	13.1	↓-0.3
12/31 02:10	12.7	↓-0.4	最大潮位差
12/31 02:20	12.4	↓-0.3
12/31 02:30	12.1	↓-0.3
12/31 02:40	11.7	↓-0.4	最大潮位差
12/31 02:50	11.4	↓-0.3
12/31 03:00	11.1	↓-0.3
12/31 03:10	10.7	↓-0.4	最大潮位差
12/31 03:20	10.4	↓-0.3
12/31 03:30	10.1	↓-0.3
12/31 03:40	9.8	↓-0.3
12/31 03:50	9.5	↓-0.3
12/31 04:00	9.2	↓-0.3
12/31 04:10	8.9	↓-0.3
12/31 04:20	8.7	↓-0.2
12/31 04:30	8.4	↓-0.3
12/31 04:40	8.2	↓-0.2
12/31 04:50	8.0	↓-0.2
12/31 05:00	7.9	↓-0.1
12/31 05:10	7.7	↓-0.2
12/31 05:20	7.6	↓-0.1
12/31 05:30	7.6	0
12/31 05:40	7.5	↓-0.1	干潮
12/31 05:50	7.5	0	干潮
12/31 06:00	7.5	0
12/31 06:10	7.6	↑0.1
12/31 06:20	7.7	↑0.1
12/31 06:30	7.8	↑0.1
12/31 06:40	7.9	↑0.1
12/31 06:50	8.1	↑0.2
12/31 07:00	8.2	↑0.1
12/31 07:10	8.5	↑0.3
12/31 07:20	8.7	↑0.2
12/31 07:30	8.9	↑0.2
12/31 07:40	9.2	↑0.3
12/31 07:50	9.5	↑0.3
12/31 08:00	9.8	↑0.3
12/31 08:10	10.1	↑0.3
12/31 08:20	10.4	↑0.3
12/31 08:30	10.7	↑0.3
12/31 08:40	11.0	↑0.3
12/31 08:50	11.4	↑0.4	最大潮位差
12/31 09:00	11.7	↑0.3
12/31 09:10	12.0	↑0.3
12/31 09:20	12.4	↑0.4	最大潮位差
12/31 09:30	12.7	↑0.3
12/31 09:40	13.0	↑0.3
12/31 09:50	13.3	↑0.3
12/31 10:00	13.6	↑0.3
12/31 10:10	13.8	↑0.2
12/31 10:20	14.1	↑0.3
12/31 10:30	14.3	↑0.2
12/31 10:40	14.5	↑0.2
12/31 10:50	14.6	↑0.1
12/31 11:00	14.8	↑0.2
12/31 11:10	14.9	↑0.1
12/31 11:20	14.9	0
12/31 11:30	15.0	↑0.1	満潮
12/31 11:40	15.0	0	満潮
12/31 11:50	15.0	0
12/31 12:00	14.9	↓-0.1
12/31 12:10	14.9	0
12/31 12:20	14.8	↓-0.1
12/31 12:30	14.6	↓-0.2
12/31 12:40	14.5	↓-0.1
12/31 12:50	14.4	↓-0.1
12/31 13:00	14.2	↓-0.2
12/31 13:10	14.1	↓-0.1
12/31 13:20	13.9	↓-0.2
12/31 13:30	13.7	↓-0.2
12/31 13:40	13.5	↓-0.2
12/31 13:50	13.4	↓-0.1
12/31 14:00	13.2	↓-0.2
12/31 14:10	13.0	↓-0.2
12/31 14:20	12.8	↓-0.2
12/31 14:30	12.7	↓-0.1
12/31 14:40	12.5	↓-0.2
12/31 14:50	12.3	↓-0.2
12/31 15:00	12.2	↓-0.1
12/31 15:10	12.0	↓-0.2
12/31 15:20	11.9	↓-0.1
12/31 15:30	11.7	↓-0.2
12/31 15:40	11.6	↓-0.1
12/31 15:50	11.5	↓-0.1
12/31 16:00	11.3	↓-0.2
12/31 16:10	11.2	↓-0.1
12/31 16:20	11.1	↓-0.1
12/31 16:30	11.0	↓-0.1
12/31 16:40	11.0	0
12/31 16:50	10.9	↓-0.1
12/31 17:00	10.9	0	干潮
12/31 17:10	10.9	0	干潮
12/31 17:20	10.9	0
12/31 17:30	10.9	0
12/31 17:40	11.0	↑0.1
12/31 17:50	11.1	↑0.1
12/31 18:00	11.2	↑0.1
12/31 18:10	11.3	↑0.1
12/31 18:20	11.5	↑0.2
12/31 18:30	11.7	↑0.2
12/31 18:40	11.9	↑0.2
12/31 18:50	12.1	↑0.2
12/31 19:00	12.3	↑0.2
12/31 19:10	12.5	↑0.2
12/31 19:20	12.8	↑0.3
12/31 19:30	13.1	↑0.3
12/31 19:40	13.4	↑0.3
12/31 19:50	13.6	↑0.2
12/31 20:00	13.9	↑0.3
12/31 20:10	14.2	↑0.3
12/31 20:20	14.5	↑0.3
12/31 20:30	14.8	↑0.3
12/31 20:40	15.1	↑0.3
12/31 20:50	15.4	↑0.3
12/31 21:00	15.7	↑0.3
12/31 21:10	16.0	↑0.3
12/31 21:20	16.2	↑0.2
12/31 21:30	16.5	↑0.3
12/31 21:40	16.8	↑0.3
12/31 21:50	17.0	↑0.2
12/31 22:00	17.2	↑0.2
12/31 22:10	17.4	↑0.2
12/31 22:20	17.6	↑0.2
12/31 22:30	17.8	↑0.2
12/31 22:40	17.9	↑0.1
12/31 22:50	18.0	↑0.1
12/31 23:00	18.1	↑0.1
12/31 23:10	18.1	0	満潮
12/31 23:20	18.1	0
12/31 23:30	18.1	0
12/31 23:40	18.0	↓-0.1
12/31 23:50	17.9	↓-0.1