20 (木)	08:13	01:13	18:20	12:56
	29cm	6cm	30cm	24cm
中潮 出 03:53 入 19:19 出 22:15 入 08:53

留萌（北海道）2030年06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
6/20 00:00	6.6	↓-0.5
6/20 00:10	6.2	↓-0.4
6/20 00:20	5.9	↓-0.3
6/20 00:30	5.6	↓-0.3
6/20 00:40	5.4	↓-0.2
6/20 00:50	5.2	↓-0.2
6/20 01:00	5.1	↓-0.1
6/20 01:10	5.1	0	干潮
6/20 01:20	5.1	0
6/20 01:30	5.2	↑0.1
6/20 01:40	5.3	↑0.1
6/20 01:50	5.6	↑0.3
6/20 02:00	5.8	↑0.2
6/20 02:10	6.2	↑0.4
6/20 02:20	6.6	↑0.4
6/20 02:30	7.0	↑0.4
6/20 02:40	7.5	↑0.5
6/20 02:50	8.1	↑0.6
6/20 03:00	8.7	↑0.6
6/20 03:10	9.4	↑0.7
6/20 03:20	10.1	↑0.7
6/20 03:30	10.9	↑0.8
6/20 03:40	11.7	↑0.8
6/20 03:50	12.6	↑0.9
6/20 04:00	13.5	↑0.9
6/20 04:10	14.4	↑0.9
6/20 04:20	15.3	↑0.9
6/20 04:30	16.2	↑0.9
6/20 04:40	17.2	↑1.0	最大潮位差
6/20 04:50	18.1	↑0.9
6/20 05:00	19.0	↑0.9
6/20 05:10	19.9	↑0.9
6/20 05:20	20.8	↑0.9
6/20 05:30	21.6	↑0.8
6/20 05:40	22.4	↑0.8
6/20 05:50	23.1	↑0.7
6/20 06:00	23.8	↑0.7
6/20 06:10	24.5	↑0.7
6/20 06:20	25.1	↑0.6
6/20 06:30	25.7	↑0.6
6/20 06:40	26.2	↑0.5
6/20 06:50	26.6	↑0.4
6/20 07:00	27.0	↑0.4
6/20 07:10	27.3	↑0.3
6/20 07:20	27.6	↑0.3
6/20 07:30	27.8	↑0.2
6/20 07:40	28.0	↑0.2
6/20 07:50	28.1	↑0.1
6/20 08:00	28.2	↑0.1
6/20 08:10	28.3	↑0.1	満潮
6/20 08:20	28.2	↓-0.1
6/20 08:30	28.2	0
6/20 08:40	28.1	↓-0.1
6/20 08:50	28.0	↓-0.1
6/20 09:00	27.8	↓-0.2
6/20 09:10	27.6	↓-0.2
6/20 09:20	27.4	↓-0.2
6/20 09:30	27.2	↓-0.2
6/20 09:40	26.9	↓-0.3
6/20 09:50	26.6	↓-0.3
6/20 10:00	26.4	↓-0.2
6/20 10:10	26.1	↓-0.3
6/20 10:20	25.8	↓-0.3
6/20 10:30	25.5	↓-0.3
6/20 10:40	25.2	↓-0.3
6/20 10:50	24.9	↓-0.3
6/20 11:00	24.7	↓-0.2
6/20 11:10	24.4	↓-0.3
6/20 11:20	24.2	↓-0.2
6/20 11:30	24.0	↓-0.2
6/20 11:40	23.8	↓-0.2
6/20 11:50	23.7	↓-0.1
6/20 12:00	23.5	↓-0.2
6/20 12:10	23.4	↓-0.1
6/20 12:20	23.3	↓-0.1
6/20 12:30	23.2	↓-0.1
6/20 12:40	23.2	0
6/20 12:50	23.2	0	干潮
6/20 13:00	23.2	0
6/20 13:10	23.2	0
6/20 13:20	23.2	0
6/20 13:30	23.3	↑0.1
6/20 13:40	23.4	↑0.1
6/20 13:50	23.5	↑0.1
6/20 14:00	23.6	↑0.1
6/20 14:10	23.7	↑0.1
6/20 14:20	23.9	↑0.2
6/20 14:30	24.1	↑0.2
6/20 14:40	24.3	↑0.2
6/20 14:50	24.5	↑0.2
6/20 15:00	24.8	↑0.3
6/20 15:10	25.0	↑0.2
6/20 15:20	25.3	↑0.3
6/20 15:30	25.6	↑0.3
6/20 15:40	25.9	↑0.3
6/20 15:50	26.3	↑0.4
6/20 16:00	26.6	↑0.3
6/20 16:10	26.9	↑0.3
6/20 16:20	27.3	↑0.4
6/20 16:30	27.6	↑0.3
6/20 16:40	27.9	↑0.3
6/20 16:50	28.2	↑0.3
6/20 17:00	28.5	↑0.3
6/20 17:10	28.8	↑0.3
6/20 17:20	29.0	↑0.2
6/20 17:30	29.3	↑0.3
6/20 17:40	29.4	↑0.1
6/20 17:50	29.6	↑0.2
6/20 18:00	29.7	↑0.1
6/20 18:10	29.7	0	満潮
6/20 18:20	29.8	↑0.1	満潮
6/20 18:30	29.7	↓-0.1
6/20 18:40	29.7	0
6/20 18:50	29.5	↓-0.2
6/20 19:00	29.4	↓-0.1
6/20 19:10	29.1	↓-0.3
6/20 19:20	28.9	↓-0.2
6/20 19:30	28.6	↓-0.3
6/20 19:40	28.2	↓-0.4
6/20 19:50	27.8	↓-0.4
6/20 20:00	27.4	↓-0.4
6/20 20:10	26.9	↓-0.5
6/20 20:20	26.4	↓-0.5
6/20 20:30	25.8	↓-0.6
6/20 20:40	25.2	↓-0.6
6/20 20:50	24.6	↓-0.6
6/20 21:00	23.9	↓-0.7
6/20 21:10	23.3	↓-0.6
6/20 21:20	22.6	↓-0.7
6/20 21:30	21.9	↓-0.7
6/20 21:40	21.1	↓-0.8
6/20 21:50	20.4	↓-0.7
6/20 22:00	19.6	↓-0.8
6/20 22:10	18.9	↓-0.7
6/20 22:20	18.1	↓-0.8
6/20 22:30	17.4	↓-0.7
6/20 22:40	16.6	↓-0.8
6/20 22:50	15.9	↓-0.7
6/20 23:00	15.2	↓-0.7
6/20 23:10	14.5	↓-0.7
6/20 23:20	13.8	↓-0.7
6/20 23:30	13.2	↓-0.6
6/20 23:40	12.6	↓-0.6
6/20 23:50	12.0	↓-0.6