20 (木)	04:21	10:46	16:05	22:34
	18cm	5cm	15cm	-1cm
大潮 出 04:43 入 18:27 出 04:45 入 18:35 潮干狩り ○ 09:15～12:10

香深/礼文島（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	4.2	↑0.4
4/20 00:10	4.7	↑0.5
4/20 00:20	5.2	↑0.5
4/20 00:30	5.8	↑0.6
4/20 00:40	6.4	↑0.6
4/20 00:50	7.0	↑0.6
4/20 01:00	7.6	↑0.6
4/20 01:10	8.3	↑0.7	最大潮位差
4/20 01:20	9.0	↑0.7	最大潮位差
4/20 01:30	9.6	↑0.6
4/20 01:40	10.3	↑0.7	最大潮位差
4/20 01:50	11.0	↑0.7	最大潮位差
4/20 02:00	11.7	↑0.7	最大潮位差
4/20 02:10	12.3	↑0.6
4/20 02:20	12.9	↑0.6
4/20 02:30	13.5	↑0.6
4/20 02:40	14.1	↑0.6
4/20 02:50	14.6	↑0.5
4/20 03:00	15.1	↑0.5
4/20 03:10	15.6	↑0.5
4/20 03:20	15.9	↑0.3
4/20 03:30	16.3	↑0.4
4/20 03:40	16.6	↑0.3
4/20 03:50	16.8	↑0.2
4/20 04:00	16.9	↑0.1
4/20 04:10	17.0	↑0.1
4/20 04:20	17.1	↑0.1	満潮
4/20 04:30	17.0	↓-0.1
4/20 04:40	16.9	↓-0.1
4/20 04:50	16.8	↓-0.1
4/20 05:00	16.6	↓-0.2
4/20 05:10	16.3	↓-0.3
4/20 05:20	16.1	↓-0.2
4/20 05:30	15.7	↓-0.4
4/20 05:40	15.3	↓-0.4
4/20 05:50	14.9	↓-0.4
4/20 06:00	14.5	↓-0.4
4/20 06:10	14.0	↓-0.5
4/20 06:20	13.6	↓-0.4
4/20 06:30	13.1	↓-0.5
4/20 06:40	12.6	↓-0.5
4/20 06:50	12.1	↓-0.5
4/20 07:00	11.6	↓-0.5
4/20 07:10	11.1	↓-0.5
4/20 07:20	10.6	↓-0.5
4/20 07:30	10.1	↓-0.5
4/20 07:40	9.6	↓-0.5
4/20 07:50	9.1	↓-0.5
4/20 08:00	8.7	↓-0.4
4/20 08:10	8.3	↓-0.4
4/20 08:20	7.9	↓-0.4
4/20 08:30	7.5	↓-0.4
4/20 08:40	7.2	↓-0.3
4/20 08:50	6.8	↓-0.4
4/20 09:00	6.5	↓-0.3
4/20 09:10	6.2	↓-0.3
4/20 09:20	6.0	↓-0.2
4/20 09:30	5.8	↓-0.2
4/20 09:40	5.6	↓-0.2
4/20 09:50	5.4	↓-0.2
4/20 10:00	5.2	↓-0.2
4/20 10:10	5.1	↓-0.1
4/20 10:20	5.0	↓-0.1
4/20 10:30	5.0	0
4/20 10:40	4.9	↓-0.1	干潮
4/20 10:50	4.9	0
4/20 11:00	5.0	↑0.1
4/20 11:10	5.0	0
4/20 11:20	5.1	↑0.1
4/20 11:30	5.3	↑0.2
4/20 11:40	5.4	↑0.1
4/20 11:50	5.6	↑0.2
4/20 12:00	5.9	↑0.3
4/20 12:10	6.1	↑0.2
4/20 12:20	6.5	↑0.4
4/20 12:30	6.8	↑0.3
4/20 12:40	7.2	↑0.4
4/20 12:50	7.6	↑0.4
4/20 13:00	8.0	↑0.4
4/20 13:10	8.4	↑0.4
4/20 13:20	8.9	↑0.5
4/20 13:30	9.3	↑0.4
4/20 13:40	9.8	↑0.5
4/20 13:50	10.3	↑0.5
4/20 14:00	10.8	↑0.5
4/20 14:10	11.3	↑0.5
4/20 14:20	11.7	↑0.4
4/20 14:30	12.2	↑0.5
4/20 14:40	12.6	↑0.4
4/20 14:50	13.0	↑0.4
4/20 15:00	13.3	↑0.3
4/20 15:10	13.7	↑0.4
4/20 15:20	13.9	↑0.2
4/20 15:30	14.2	↑0.3
4/20 15:40	14.3	↑0.1
4/20 15:50	14.4	↑0.1
4/20 16:00	14.5	↑0.1	満潮
4/20 16:10	14.5	0
4/20 16:20	14.4	↓-0.1
4/20 16:30	14.3	↓-0.1
4/20 16:40	14.1	↓-0.2
4/20 16:50	13.8	↓-0.3
4/20 17:00	13.5	↓-0.3
4/20 17:10	13.1	↓-0.4
4/20 17:20	12.7	↓-0.4
4/20 17:30	12.3	↓-0.4
4/20 17:40	11.8	↓-0.5
4/20 17:50	11.2	↓-0.6
4/20 18:00	10.6	↓-0.6
4/20 18:10	10.0	↓-0.6
4/20 18:20	9.4	↓-0.6
4/20 18:30	8.8	↓-0.6
4/20 18:40	8.1	↓-0.7	最大潮位差
4/20 18:50	7.5	↓-0.6
4/20 19:00	6.8	↓-0.7	最大潮位差
4/20 19:10	6.1	↓-0.7	最大潮位差
4/20 19:20	5.5	↓-0.6
4/20 19:30	4.9	↓-0.6
4/20 19:40	4.3	↓-0.6
4/20 19:50	3.7	↓-0.6
4/20 20:00	3.1	↓-0.6
4/20 20:10	2.6	↓-0.5
4/20 20:20	2.1	↓-0.5
4/20 20:30	1.6	↓-0.5
4/20 20:40	1.1	↓-0.5
4/20 20:50	0.7	↓-0.4
4/20 21:00	0.4	↓-0.3
4/20 21:10	0.0	↓-0.4
4/20 21:20	-0.3	0
4/20 21:30	-0.5	↓-0.2
4/20 21:40	-0.8	↓-0.3
4/20 21:50	-1.0	↓-0.2
4/20 22:00	-1.1	↓-0.1
4/20 22:10	-1.2	↓-0.1
4/20 22:20	-1.3	↓-0.1
4/20 22:30	-1.3	0	干潮
4/20 22:40	-1.3	0
4/20 22:50	-1.3	0
4/20 23:00	-1.2	↑0.1
4/20 23:10	-1.0	↑0.2
4/20 23:20	-0.9	↑0.1
4/20 23:30	-0.6	↑0.3
4/20 23:40	-0.4	↑0.2
4/20 23:50	-0.1	↑0.3