20 (木)	04:26	10:23	15:39	22:18
	13cm	0cm	11cm	-10cm
大潮 出 04:45 入 18:23 出 04:45 入 18:31 潮干狩り ◎ 07:28～13:23

留萌（北海道）2023年04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
4/20 00:00	-2.8	↑0.6
4/20 00:10	-2.0	↑0.8
4/20 00:20	-1.3	↑0.7
4/20 00:30	-0.5	↑0.8
4/20 00:40	0.3	↑0.8
4/20 00:50	1.1	↑0.8
4/20 01:00	1.9	↑0.8
4/20 01:10	2.7	↑0.8
4/20 01:20	3.6	↑0.9	最大潮位差
4/20 01:30	4.4	↑0.8
4/20 01:40	5.3	↑0.9	最大潮位差
4/20 01:50	6.1	↑0.8
4/20 02:00	6.8	↑0.7
4/20 02:10	7.6	↑0.8
4/20 02:20	8.3	↑0.7
4/20 02:30	9.0	↑0.7
4/20 02:40	9.6	↑0.6
4/20 02:50	10.2	↑0.6
4/20 03:00	10.7	↑0.5
4/20 03:10	11.2	↑0.5
4/20 03:20	11.6	↑0.4
4/20 03:30	11.9	↑0.3
4/20 03:40	12.2	↑0.3
4/20 03:50	12.4	↑0.2
4/20 04:00	12.6	↑0.2
4/20 04:10	12.7	↑0.1
4/20 04:20	12.8	↑0.1	満潮
4/20 04:30	12.8	0
4/20 04:40	12.7	↓-0.1
4/20 04:50	12.6	↓-0.1
4/20 05:00	12.5	↓-0.1
4/20 05:10	12.3	↓-0.2
4/20 05:20	12.0	↓-0.3
4/20 05:30	11.7	↓-0.3
4/20 05:40	11.4	↓-0.3
4/20 05:50	11.0	↓-0.4
4/20 06:00	10.6	↓-0.4
4/20 06:10	10.2	↓-0.4
4/20 06:20	9.7	↓-0.5
4/20 06:30	9.1	↓-0.6
4/20 06:40	8.6	↓-0.5
4/20 06:50	8.0	↓-0.6
4/20 07:00	7.4	↓-0.6
4/20 07:10	6.8	↓-0.6
4/20 07:20	6.2	↓-0.6
4/20 07:30	5.6	↓-0.6
4/20 07:40	5.0	↓-0.6
4/20 07:50	4.4	↓-0.6
4/20 08:00	3.8	↓-0.6
4/20 08:10	3.2	↓-0.6
4/20 08:20	2.7	↓-0.5
4/20 08:30	2.1	↓-0.6
4/20 08:40	1.7	↓-0.4
4/20 08:50	1.2	↓-0.5
4/20 09:00	0.8	↓-0.4
4/20 09:10	0.4	↓-0.4
4/20 09:20	0.1	↓-0.3
4/20 09:30	-0.1	↓-0.2
4/20 09:40	-0.4	↓-0.3
4/20 09:50	-0.5	↓-0.1
4/20 10:00	-0.7	↓-0.2
4/20 10:10	-0.8	↓-0.1
4/20 10:20	-0.8	0	干潮
4/20 10:30	-0.8	0
4/20 10:40	-0.7	↑0.1
4/20 10:50	-0.6	↑0.1
4/20 11:00	-0.5	↑0.1
4/20 11:10	-0.3	↑0.2
4/20 11:20	0.0	↑0.3
4/20 11:30	0.2	0
4/20 11:40	0.6	↑0.4
4/20 11:50	0.9	↑0.3
4/20 12:00	1.3	↑0.4
4/20 12:10	1.8	↑0.5
4/20 12:20	2.2	↑0.4
4/20 12:30	2.7	↑0.5
4/20 12:40	3.3	↑0.6
4/20 12:50	3.8	↑0.5
4/20 13:00	4.4	↑0.6
4/20 13:10	5.0	↑0.6
4/20 13:20	5.6	↑0.6
4/20 13:30	6.2	↑0.6
4/20 13:40	6.8	↑0.6
4/20 13:50	7.4	↑0.6
4/20 14:00	7.9	↑0.5
4/20 14:10	8.4	↑0.5
4/20 14:20	8.9	↑0.5
4/20 14:30	9.4	↑0.5
4/20 14:40	9.8	↑0.4
4/20 14:50	10.1	↑0.3
4/20 15:00	10.4	↑0.3
4/20 15:10	10.6	↑0.2
4/20 15:20	10.8	↑0.2
4/20 15:30	10.9	↑0.1	満潮
4/20 15:40	10.9	0
4/20 15:50	10.8	↓-0.1
4/20 16:00	10.7	↓-0.1
4/20 16:10	10.5	↓-0.2
4/20 16:20	10.3	↓-0.2
4/20 16:30	10.0	↓-0.3
4/20 16:40	9.6	↓-0.4
4/20 16:50	9.2	↓-0.4
4/20 17:00	8.7	↓-0.5
4/20 17:10	8.2	↓-0.5
4/20 17:20	7.6	↓-0.6
4/20 17:30	7.0	↓-0.6
4/20 17:40	6.3	↓-0.7
4/20 17:50	5.6	↓-0.7
4/20 18:00	4.9	↓-0.7
4/20 18:10	4.1	↓-0.8
4/20 18:20	3.3	↓-0.8
4/20 18:30	2.5	↓-0.8
4/20 18:40	1.7	↓-0.8
4/20 18:50	0.8	↓-0.9	最大潮位差
4/20 19:00	0.0	↓-0.8
4/20 19:10	-0.9	0
4/20 19:20	-1.7	↓-0.8
4/20 19:30	-2.6	↓-0.9	最大潮位差
4/20 19:40	-3.4	↓-0.8
4/20 19:50	-4.3	↓-0.9	最大潮位差
4/20 20:00	-5.0	↓-0.7
4/20 20:10	-5.8	↓-0.8
4/20 20:20	-6.5	↓-0.7
4/20 20:30	-7.2	↓-0.7
4/20 20:40	-7.8	↓-0.6
4/20 20:50	-8.4	↓-0.6
4/20 21:00	-8.9	↓-0.5
4/20 21:10	-9.4	↓-0.5
4/20 21:20	-9.8	↓-0.4
4/20 21:30	-10.2	↓-0.4
4/20 21:40	-10.4	↓-0.2
4/20 21:50	-10.6	↓-0.2
4/20 22:00	-10.8	↓-0.2
4/20 22:10	-10.8	0	干潮
4/20 22:20	-10.9	↓-0.1
4/20 22:30	-10.8	↑0.1
4/20 22:40	-10.7	↑0.1
4/20 22:50	-10.5	↑0.2
4/20 23:00	-10.3	↑0.2
4/20 23:10	-10.0	↑0.3
4/20 23:20	-9.6	↑0.4
4/20 23:30	-9.2	↑0.4
4/20 23:40	-8.8	↑0.4
4/20 23:50	-8.3	↑0.5