20 (日)	01:16	08:39	16:40	21:01
	21cm	2cm	21cm	18cm
大潮 出 07:03 入 16:01 出 14:33 入 04:14 潮干狩り ◎ 07:03～11:05

留萌（北海道）2037年12月20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
12/20 00:00	19.2	↑0.2
12/20 00:10	19.4	↑0.2
12/20 00:20	19.6	↑0.2
12/20 00:30	19.8	↑0.2
12/20 00:40	20.0	↑0.2
12/20 00:50	20.1	↑0.1
12/20 01:00	20.2	↑0.1
12/20 01:10	20.2	0	満潮
12/20 01:20	20.2	0
12/20 01:30	20.2	0
12/20 01:40	20.1	↓-0.1
12/20 01:50	19.9	↓-0.2
12/20 02:00	19.8	↓-0.1
12/20 02:10	19.5	↓-0.3
12/20 02:20	19.2	↓-0.3
12/20 02:30	18.9	↓-0.3
12/20 02:40	18.6	↓-0.3
12/20 02:50	18.2	↓-0.4
12/20 03:00	17.7	↓-0.5
12/20 03:10	17.3	↓-0.4
12/20 03:20	16.8	↓-0.5
12/20 03:30	16.3	↓-0.5
12/20 03:40	15.7	↓-0.6
12/20 03:50	15.2	↓-0.5
12/20 04:00	14.6	↓-0.6
12/20 04:10	14.0	↓-0.6
12/20 04:20	13.4	↓-0.6
12/20 04:30	12.8	↓-0.6
12/20 04:40	12.2	↓-0.6
12/20 04:50	11.5	↓-0.7
12/20 05:00	10.9	↓-0.6
12/20 05:10	10.2	↓-0.7
12/20 05:20	9.6	↓-0.6
12/20 05:30	8.9	↓-0.7
12/20 05:40	8.3	↓-0.6
12/20 05:50	7.6	↓-0.7
12/20 06:00	7.0	↓-0.6
12/20 06:10	6.4	↓-0.6
12/20 06:20	5.8	↓-0.6
12/20 06:30	5.2	↓-0.6
12/20 06:40	4.6	↓-0.6
12/20 06:50	4.1	↓-0.5
12/20 07:00	3.6	↓-0.5
12/20 07:10	3.2	↓-0.4
12/20 07:20	2.8	↓-0.4
12/20 07:30	2.4	↓-0.4
12/20 07:40	2.1	↓-0.3
12/20 07:50	1.8	↓-0.3
12/20 08:00	1.6	↓-0.2
12/20 08:10	1.5	↓-0.1
12/20 08:20	1.4	↓-0.1
12/20 08:30	1.3	↓-0.1	干潮
12/20 08:40	1.3	0
12/20 08:50	1.3	0
12/20 09:00	1.4	↑0.1
12/20 09:10	1.5	↑0.1
12/20 09:20	1.7	↑0.2
12/20 09:30	1.9	↑0.2
12/20 09:40	2.1	↑0.2
12/20 09:50	2.4	↑0.3
12/20 10:00	2.7	↑0.3
12/20 10:10	3.1	↑0.4
12/20 10:20	3.5	↑0.4
12/20 10:30	3.9	↑0.4
12/20 10:40	4.4	↑0.5
12/20 10:50	4.9	↑0.5
12/20 11:00	5.5	↑0.6
12/20 11:10	6.0	↑0.5
12/20 11:20	6.6	↑0.6
12/20 11:30	7.3	↑0.7
12/20 11:40	7.9	↑0.6
12/20 11:50	8.6	↑0.7
12/20 12:00	9.3	↑0.7
12/20 12:10	10.0	↑0.7
12/20 12:20	10.7	↑0.7
12/20 12:30	11.5	↑0.8	最大潮位差
12/20 12:40	12.2	↑0.7
12/20 12:50	12.9	↑0.7
12/20 13:00	13.6	↑0.7
12/20 13:10	14.3	↑0.7
12/20 13:20	15.0	↑0.7
12/20 13:30	15.6	↑0.6
12/20 13:40	16.2	↑0.6
12/20 13:50	16.8	↑0.6
12/20 14:00	17.3	↑0.5
12/20 14:10	17.8	↑0.5
12/20 14:20	18.2	↑0.4
12/20 14:30	18.6	↑0.4
12/20 14:40	19.0	↑0.4
12/20 14:50	19.3	↑0.3
12/20 15:00	19.6	↑0.3
12/20 15:10	19.9	↑0.3
12/20 15:20	20.1	↑0.2
12/20 15:30	20.3	↑0.2
12/20 15:40	20.5	↑0.2
12/20 15:50	20.6	↑0.1
12/20 16:00	20.7	↑0.1
12/20 16:10	20.8	↑0.1
12/20 16:20	20.9	↑0.1
12/20 16:30	20.9	0	満潮
12/20 16:40	20.9	0	満潮
12/20 16:50	20.9	0
12/20 17:00	20.9	0
12/20 17:10	20.8	↓-0.1
12/20 17:20	20.7	↓-0.1
12/20 17:30	20.6	↓-0.1
12/20 17:40	20.5	↓-0.1
12/20 17:50	20.3	↓-0.2
12/20 18:00	20.2	↓-0.1
12/20 18:10	20.0	↓-0.2
12/20 18:20	19.8	↓-0.2
12/20 18:30	19.6	↓-0.2
12/20 18:40	19.3	↓-0.3
12/20 18:50	19.1	↓-0.2
12/20 19:00	18.9	↓-0.2
12/20 19:10	18.7	↓-0.2
12/20 19:20	18.5	↓-0.2
12/20 19:30	18.3	↓-0.2
12/20 19:40	18.1	↓-0.2
12/20 19:50	18.0	↓-0.1
12/20 20:00	17.8	↓-0.2
12/20 20:10	17.7	↓-0.1
12/20 20:20	17.6	↓-0.1
12/20 20:30	17.5	↓-0.1
12/20 20:40	17.5	0
12/20 20:50	17.5	0
12/20 21:00	17.4	↓-0.1	干潮
12/20 21:10	17.4	0
12/20 21:20	17.5	↑0.1
12/20 21:30	17.5	0
12/20 21:40	17.6	↑0.1
12/20 21:50	17.7	↑0.1
12/20 22:00	17.8	↑0.1
12/20 22:10	17.9	↑0.1
12/20 22:20	18.0	↑0.1
12/20 22:30	18.1	↑0.1
12/20 22:40	18.3	↑0.2
12/20 22:50	18.4	↑0.1
12/20 23:00	18.6	↑0.2
12/20 23:10	18.8	↑0.2
12/20 23:20	19.0	↑0.2
12/20 23:30	19.2	↑0.2
12/20 23:40	19.4	↑0.2
12/20 23:50	19.7	↑0.3