1 (水)	00:49	07:32	14:02	19:40
	19cm	6cm	20cm	12cm
中潮 出 06:47 入 16:00 出 02:28 入 14:05

留萌（北海道）2021年12月1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
12/1 00:00	17.7	↑0.2
12/1 00:10	17.9	↑0.2
12/1 00:20	18.0	↑0.1
12/1 00:30	18.1	↑0.1
12/1 00:40	18.1	0	満潮
12/1 00:50	18.2	↑0.1
12/1 01:00	18.1	↓-0.1
12/1 01:10	18.1	0
12/1 01:20	17.9	↓-0.2
12/1 01:30	17.8	↓-0.1
12/1 01:40	17.6	↓-0.2
12/1 01:50	17.4	↓-0.2
12/1 02:00	17.1	↓-0.3
12/1 02:10	16.8	↓-0.3
12/1 02:20	16.5	↓-0.3
12/1 02:30	16.2	↓-0.3
12/1 02:40	15.9	↓-0.3
12/1 02:50	15.5	↓-0.4
12/1 03:00	15.1	↓-0.4
12/1 03:10	14.7	↓-0.4
12/1 03:20	14.3	↓-0.4
12/1 03:30	13.9	↓-0.4
12/1 03:40	13.5	↓-0.4
12/1 03:50	13.0	↓-0.5
12/1 04:00	12.6	↓-0.4
12/1 04:10	12.1	↓-0.5
12/1 04:20	11.7	↓-0.4
12/1 04:30	11.2	↓-0.5
12/1 04:40	10.8	↓-0.4
12/1 04:50	10.3	↓-0.5
12/1 05:00	9.9	↓-0.4
12/1 05:10	9.4	↓-0.5
12/1 05:20	9.0	↓-0.4
12/1 05:30	8.6	↓-0.4
12/1 05:40	8.2	↓-0.4
12/1 05:50	7.8	↓-0.4
12/1 06:00	7.4	↓-0.4
12/1 06:10	7.1	↓-0.3
12/1 06:20	6.8	↓-0.3
12/1 06:30	6.5	↓-0.3
12/1 06:40	6.3	↓-0.2
12/1 06:50	6.1	↓-0.2
12/1 07:00	6.0	↓-0.1
12/1 07:10	5.9	↓-0.1
12/1 07:20	5.8	↓-0.1
12/1 07:30	5.8	0	干潮
12/1 07:40	5.8	0
12/1 07:50	5.8	0
12/1 08:00	5.9	↑0.1
12/1 08:10	6.1	↑0.2
12/1 08:20	6.3	↑0.2
12/1 08:30	6.5	↑0.2
12/1 08:40	6.7	↑0.2
12/1 08:50	7.0	↑0.3
12/1 09:00	7.3	↑0.3
12/1 09:10	7.6	↑0.3
12/1 09:20	8.0	↑0.4
12/1 09:30	8.4	↑0.4
12/1 09:40	8.8	↑0.4
12/1 09:50	9.2	↑0.4
12/1 10:00	9.7	↑0.5
12/1 10:10	10.2	↑0.5
12/1 10:20	10.7	↑0.5
12/1 10:30	11.2	↑0.5
12/1 10:40	11.7	↑0.5
12/1 10:50	12.3	↑0.6	最大潮位差
12/1 11:00	12.8	↑0.5
12/1 11:10	13.4	↑0.6	最大潮位差
12/1 11:20	13.9	↑0.5
12/1 11:30	14.5	↑0.6	最大潮位差
12/1 11:40	15.0	↑0.5
12/1 11:50	15.5	↑0.5
12/1 12:00	16.0	↑0.5
12/1 12:10	16.5	↑0.5
12/1 12:20	17.0	↑0.5
12/1 12:30	17.4	↑0.4
12/1 12:40	17.8	↑0.4
12/1 12:50	18.1	↑0.3
12/1 13:00	18.4	↑0.3
12/1 13:10	18.6	↑0.2
12/1 13:20	18.8	↑0.2
12/1 13:30	19.0	↑0.2
12/1 13:40	19.1	↑0.1
12/1 13:50	19.2	↑0.1
12/1 14:00	19.2	0	満潮
12/1 14:10	19.2	0
12/1 14:20	19.1	↓-0.1
12/1 14:30	19.0	↓-0.1
12/1 14:40	18.9	↓-0.1
12/1 14:50	18.8	↓-0.1
12/1 15:00	18.6	↓-0.2
12/1 15:10	18.4	↓-0.2
12/1 15:20	18.1	↓-0.3
12/1 15:30	17.9	↓-0.2
12/1 15:40	17.6	↓-0.3
12/1 15:50	17.4	↓-0.2
12/1 16:00	17.1	↓-0.3
12/1 16:10	16.8	↓-0.3
12/1 16:20	16.4	↓-0.4
12/1 16:30	16.1	↓-0.3
12/1 16:40	15.8	↓-0.3
12/1 16:50	15.4	↓-0.4
12/1 17:00	15.1	↓-0.3
12/1 17:10	14.7	↓-0.4
12/1 17:20	14.4	↓-0.3
12/1 17:30	14.0	↓-0.4
12/1 17:40	13.7	↓-0.3
12/1 17:50	13.3	↓-0.4
12/1 18:00	13.0	↓-0.3
12/1 18:10	12.7	↓-0.3
12/1 18:20	12.5	↓-0.2
12/1 18:30	12.2	↓-0.3
12/1 18:40	12.0	↓-0.2
12/1 18:50	11.8	↓-0.2
12/1 19:00	11.6	↓-0.2
12/1 19:10	11.5	↓-0.1
12/1 19:20	11.4	↓-0.1
12/1 19:30	11.4	0	干潮
12/1 19:40	11.3	↓-0.1	干潮
12/1 19:50	11.4	↑0.1
12/1 20:00	11.4	0
12/1 20:10	11.5	↑0.1
12/1 20:20	11.6	↑0.1
12/1 20:30	11.8	↑0.2
12/1 20:40	12.0	↑0.2
12/1 20:50	12.2	↑0.2
12/1 21:00	12.4	↑0.2
12/1 21:10	12.6	↑0.2
12/1 21:20	12.9	↑0.3
12/1 21:30	13.2	↑0.3
12/1 21:40	13.5	↑0.3
12/1 21:50	13.8	↑0.3
12/1 22:00	14.1	↑0.3
12/1 22:10	14.4	↑0.3
12/1 22:20	14.8	↑0.4
12/1 22:30	15.1	↑0.3
12/1 22:40	15.5	↑0.4
12/1 22:50	15.8	↑0.3
12/1 23:00	16.2	↑0.4
12/1 23:10	16.5	↑0.3
12/1 23:20	16.9	↑0.4
12/1 23:30	17.2	↑0.3
12/1 23:40	17.5	↑0.3
12/1 23:50	17.9	↑0.4