20 (日)	16:20	02:09	-	-
	19cm	-3cm	-	-
小潮 出 04:44 入 18:24 出 00:44 入 09:01 潮干狩り ◎ 04:44～06:33

留萌（北海道）2025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	-0.8	↓-0.5
4/20 00:10	-1.2	↓-0.4
4/20 00:20	-1.5	↓-0.3
4/20 00:30	-1.9	↓-0.4
4/20 00:40	-2.2	↓-0.3
4/20 00:50	-2.4	↓-0.2
4/20 01:00	-2.7	↓-0.3
4/20 01:10	-2.9	↓-0.2
4/20 01:20	-3.1	↓-0.2
4/20 01:30	-3.2	↓-0.1
4/20 01:40	-3.3	↓-0.1
4/20 01:50	-3.4	↓-0.1
4/20 02:00	-3.4	0	干潮
4/20 02:10	-3.4	0
4/20 02:20	-3.4	0
4/20 02:30	-3.3	↑0.1
4/20 02:40	-3.3	0
4/20 02:50	-3.2	↑0.1
4/20 03:00	-3.0	↑0.2
4/20 03:10	-2.9	↑0.1
4/20 03:20	-2.7	↑0.2
4/20 03:30	-2.5	↑0.2
4/20 03:40	-2.2	↑0.3
4/20 03:50	-2.0	↑0.2
4/20 04:00	-1.7	↑0.3
4/20 04:10	-1.3	↑0.4
4/20 04:20	-1.0	↑0.3
4/20 04:30	-0.6	↑0.4
4/20 04:40	-0.2	↑0.4
4/20 04:50	0.3	↑0.5
4/20 05:00	0.7	↑0.4
4/20 05:10	1.2	↑0.5
4/20 05:20	1.7	↑0.5
4/20 05:30	2.2	↑0.5
4/20 05:40	2.8	↑0.6	最大潮位差
4/20 05:50	3.3	↑0.5
4/20 06:00	3.9	↑0.6	最大潮位差
4/20 06:10	4.4	↑0.5
4/20 06:20	5.0	↑0.6	最大潮位差
4/20 06:30	5.6	↑0.6	最大潮位差
4/20 06:40	6.2	↑0.6	最大潮位差
4/20 06:50	6.7	↑0.5
4/20 07:00	7.3	↑0.6	最大潮位差
4/20 07:10	7.8	↑0.5
4/20 07:20	8.4	↑0.6	最大潮位差
4/20 07:30	8.9	↑0.5
4/20 07:40	9.4	↑0.5
4/20 07:50	9.9	↑0.5
4/20 08:00	10.4	↑0.5
4/20 08:10	10.8	↑0.4
4/20 08:20	11.3	↑0.5
4/20 08:30	11.7	↑0.4
4/20 08:40	12.1	↑0.4
4/20 08:50	12.5	↑0.4
4/20 09:00	12.8	↑0.3
4/20 09:10	13.1	↑0.3
4/20 09:20	13.4	↑0.3
4/20 09:30	13.7	↑0.3
4/20 09:40	13.9	↑0.2
4/20 09:50	14.2	↑0.3
4/20 10:00	14.4	↑0.2
4/20 10:10	14.6	↑0.2
4/20 10:20	14.7	↑0.1
4/20 10:30	14.9	↑0.2
4/20 10:40	15.0	↑0.1
4/20 10:50	15.1	↑0.1
4/20 11:00	15.2	↑0.1
4/20 11:10	15.3	↑0.1
4/20 11:20	15.4	↑0.1
4/20 11:30	15.5	↑0.1
4/20 11:40	15.6	↑0.1
4/20 11:50	15.7	↑0.1
4/20 12:00	15.8	↑0.1
4/20 12:10	15.9	↑0.1
4/20 12:20	16.0	↑0.1
4/20 12:30	16.1	↑0.1
4/20 12:40	16.3	↑0.2
4/20 12:50	16.4	↑0.1
4/20 13:00	16.5	↑0.1
4/20 13:10	16.7	↑0.2
4/20 13:20	16.8	↑0.1
4/20 13:30	17.0	↑0.2
4/20 13:40	17.1	↑0.1
4/20 13:50	17.3	↑0.2
4/20 14:00	17.4	↑0.1
4/20 14:10	17.5	↑0.1
4/20 14:20	17.7	↑0.2
4/20 14:30	17.8	↑0.1
4/20 14:40	18.0	↑0.2
4/20 14:50	18.1	↑0.1
4/20 15:00	18.2	↑0.1
4/20 15:10	18.3	↑0.1
4/20 15:20	18.4	↑0.1
4/20 15:30	18.4	0
4/20 15:40	18.5	↑0.1
4/20 15:50	18.5	0
4/20 16:00	18.6	↑0.1
4/20 16:10	18.6	0	満潮
4/20 16:20	18.6	0	満潮
4/20 16:30	18.6	0
4/20 16:40	18.6	0
4/20 16:50	18.5	↓-0.1
4/20 17:00	18.5	0
4/20 17:10	18.4	↓-0.1
4/20 17:20	18.3	↓-0.1
4/20 17:30	18.2	↓-0.1
4/20 17:40	18.1	↓-0.1
4/20 17:50	18.0	↓-0.1
4/20 18:00	17.9	↓-0.1
4/20 18:10	17.7	↓-0.2
4/20 18:20	17.5	↓-0.2
4/20 18:30	17.3	↓-0.2
4/20 18:40	17.1	↓-0.2
4/20 18:50	16.9	↓-0.2
4/20 19:00	16.6	↓-0.3
4/20 19:10	16.3	↓-0.3
4/20 19:20	16.0	↓-0.3
4/20 19:30	15.7	↓-0.3
4/20 19:40	15.3	↓-0.4
4/20 19:50	15.0	↓-0.3
4/20 20:00	14.6	↓-0.4
4/20 20:10	14.2	↓-0.4
4/20 20:20	13.8	↓-0.4
4/20 20:30	13.3	↓-0.5
4/20 20:40	12.9	↓-0.4
4/20 20:50	12.4	↓-0.5
4/20 21:00	11.9	↓-0.5
4/20 21:10	11.4	↓-0.5
4/20 21:20	10.9	↓-0.5
4/20 21:30	10.4	↓-0.5
4/20 21:40	9.9	↓-0.5
4/20 21:50	9.3	↓-0.6	最大潮位差
4/20 22:00	8.8	↓-0.5
4/20 22:10	8.2	↓-0.6	最大潮位差
4/20 22:20	7.7	↓-0.5
4/20 22:30	7.1	↓-0.6	最大潮位差
4/20 22:40	6.5	↓-0.6	最大潮位差
4/20 22:50	5.9	↓-0.6	最大潮位差
4/20 23:00	5.4	↓-0.5
4/20 23:10	4.8	↓-0.6	最大潮位差
4/20 23:20	4.3	↓-0.5
4/20 23:30	3.7	↓-0.6	最大潮位差
4/20 23:40	3.2	↓-0.5
4/20 23:50	2.7	↓-0.5