31 (火)	05:26	00:04	20:29	13:15
	24cm	19cm	21cm	2cm
中潮 出 07:07 入 16:07 出 10:27 入 21:02 潮干狩り ◎ 11:03～15:28

留萌（北海道）2019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	18.9	0	干潮
12/31 00:10	18.9	0
12/31 00:20	18.9	0
12/31 00:30	19.0	↑0.1
12/31 00:40	19.0	0
12/31 00:50	19.1	↑0.1
12/31 01:00	19.2	↑0.1
12/31 01:10	19.3	↑0.1
12/31 01:20	19.4	↑0.1
12/31 01:30	19.6	↑0.2
12/31 01:40	19.7	↑0.1
12/31 01:50	19.9	↑0.2
12/31 02:00	20.0	↑0.1
12/31 02:10	20.2	↑0.2
12/31 02:20	20.4	↑0.2
12/31 02:30	20.6	↑0.2
12/31 02:40	20.8	↑0.2
12/31 02:50	21.0	↑0.2
12/31 03:00	21.2	↑0.2
12/31 03:10	21.4	↑0.2
12/31 03:20	21.6	↑0.2
12/31 03:30	21.8	↑0.2
12/31 03:40	22.0	↑0.2
12/31 03:50	22.3	↑0.3
12/31 04:00	22.5	↑0.2
12/31 04:10	22.7	↑0.2
12/31 04:20	22.8	↑0.1
12/31 04:30	23.0	↑0.2
12/31 04:40	23.2	↑0.2
12/31 04:50	23.3	↑0.1
12/31 05:00	23.4	↑0.1
12/31 05:10	23.5	↑0.1
12/31 05:20	23.5	0	満潮
12/31 05:30	23.5	0
12/31 05:40	23.5	0
12/31 05:50	23.4	↓-0.1
12/31 06:00	23.3	↓-0.1
12/31 06:10	23.1	↓-0.2
12/31 06:20	22.9	↓-0.2
12/31 06:30	22.6	↓-0.3
12/31 06:40	22.3	↓-0.3
12/31 06:50	22.0	↓-0.3
12/31 07:00	21.6	↓-0.4
12/31 07:10	21.1	↓-0.5
12/31 07:20	20.7	↓-0.4
12/31 07:30	20.1	↓-0.6
12/31 07:40	19.6	↓-0.5
12/31 07:50	19.0	↓-0.6
12/31 08:00	18.4	↓-0.6
12/31 08:10	17.8	↓-0.6
12/31 08:20	17.1	↓-0.7
12/31 08:30	16.5	↓-0.6
12/31 08:40	15.8	↓-0.7
12/31 08:50	15.0	↓-0.8	最大潮位差
12/31 09:00	14.3	↓-0.7
12/31 09:10	13.6	↓-0.7
12/31 09:20	12.8	↓-0.8	最大潮位差
12/31 09:30	12.1	↓-0.7
12/31 09:40	11.4	↓-0.7
12/31 09:50	10.6	↓-0.8	最大潮位差
12/31 10:00	9.9	↓-0.7
12/31 10:10	9.2	↓-0.7
12/31 10:20	8.5	↓-0.7
12/31 10:30	7.8	↓-0.7
12/31 10:40	7.1	↓-0.7
12/31 10:50	6.5	↓-0.6
12/31 11:00	5.9	↓-0.6
12/31 11:10	5.3	↓-0.6
12/31 11:20	4.8	↓-0.5
12/31 11:30	4.3	↓-0.5
12/31 11:40	3.8	↓-0.5
12/31 11:50	3.4	↓-0.4
12/31 12:00	3.1	↓-0.3
12/31 12:10	2.8	↓-0.3
12/31 12:20	2.5	↓-0.3
12/31 12:30	2.3	↓-0.2
12/31 12:40	2.1	↓-0.2
12/31 12:50	1.9	↓-0.2
12/31 13:00	1.9	0
12/31 13:10	1.8	↓-0.1	干潮
12/31 13:20	1.8	0
12/31 13:30	1.9	↑0.1
12/31 13:40	2.0	↑0.1
12/31 13:50	2.1	↑0.1
12/31 14:00	2.3	↑0.2
12/31 14:10	2.5	↑0.2
12/31 14:20	2.8	↑0.3
12/31 14:30	3.1	↑0.3
12/31 14:40	3.4	↑0.3
12/31 14:50	3.8	↑0.4
12/31 15:00	4.3	↑0.5
12/31 15:10	4.8	↑0.5
12/31 15:20	5.3	↑0.5
12/31 15:30	5.9	↑0.6
12/31 15:40	6.5	↑0.6
12/31 15:50	7.1	↑0.6
12/31 16:00	7.8	↑0.7
12/31 16:10	8.4	↑0.6
12/31 16:20	9.1	↑0.7
12/31 16:30	9.9	↑0.8	最大潮位差
12/31 16:40	10.6	↑0.7
12/31 16:50	11.4	↑0.8	最大潮位差
12/31 17:00	12.1	↑0.7
12/31 17:10	12.8	↑0.7
12/31 17:20	13.6	↑0.8	最大潮位差
12/31 17:30	14.3	↑0.7
12/31 17:40	15.0	↑0.7
12/31 17:50	15.6	↑0.6
12/31 18:00	16.3	↑0.7
12/31 18:10	16.9	↑0.6
12/31 18:20	17.4	↑0.5
12/31 18:30	18.0	↑0.6
12/31 18:40	18.4	↑0.4
12/31 18:50	18.9	↑0.5
12/31 19:00	19.3	↑0.4
12/31 19:10	19.6	↑0.3
12/31 19:20	19.9	↑0.3
12/31 19:30	20.2	↑0.3
12/31 19:40	20.4	↑0.2
12/31 19:50	20.6	↑0.2
12/31 20:00	20.7	↑0.1
12/31 20:10	20.8	↑0.1
12/31 20:20	20.8	0	満潮
12/31 20:30	20.9	↑0.1
12/31 20:40	20.8	↓-0.1
12/31 20:50	20.8	0
12/31 21:00	20.7	↓-0.1
12/31 21:10	20.6	↓-0.1
12/31 21:20	20.4	↓-0.2
12/31 21:30	20.3	↓-0.1
12/31 21:40	20.1	↓-0.2
12/31 21:50	19.9	↓-0.2
12/31 22:00	19.7	↓-0.2
12/31 22:10	19.5	↓-0.2
12/31 22:20	19.3	↓-0.2
12/31 22:30	19.1	↓-0.2
12/31 22:40	18.8	↓-0.3
12/31 22:50	18.6	↓-0.2
12/31 23:00	18.4	↓-0.2
12/31 23:10	18.2	↓-0.2
12/31 23:20	18.1	↓-0.1
12/31 23:30	17.9	↓-0.2
12/31 23:40	17.8	↓-0.1
12/31 23:50	17.6	↓-0.2