20 (火)	17:20	04:01	-	-
	17cm	-2cm	-	-
小潮 出 04:42 入 18:28 出 09:57 入 01:14 潮干狩り ◎ 04:42～09:10

香深/礼文島（北海道）2021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	4.5	↓-0.6	最大潮位差
4/20 00:10	3.9	↓-0.6	最大潮位差
4/20 00:20	3.4	↓-0.5
4/20 00:30	2.9	↓-0.5
4/20 00:40	2.4	↓-0.5
4/20 00:50	1.9	↓-0.5
4/20 01:00	1.4	↓-0.5
4/20 01:10	1.0	↓-0.4
4/20 01:20	0.6	↓-0.4
4/20 01:30	0.3	↓-0.3
4/20 01:40	-0.1	↓-0.4
4/20 01:50	-0.4	↓-0.3
4/20 02:00	-0.7	↓-0.3
4/20 02:10	-0.9	↓-0.2
4/20 02:20	-1.1	↓-0.2
4/20 02:30	-1.3	↓-0.2
4/20 02:40	-1.5	↓-0.2
4/20 02:50	-1.6	↓-0.1
4/20 03:00	-1.7	↓-0.1
4/20 03:10	-1.8	↓-0.1
4/20 03:20	-1.9	↓-0.1
4/20 03:30	-2.0	↓-0.1
4/20 03:40	-2.0	0
4/20 03:50	-2.0	0
4/20 04:00	-2.0	0	干潮
4/20 04:10	-2.0	0
4/20 04:20	-2.0	0
4/20 04:30	-2.0	0
4/20 04:40	-1.9	↑0.1
4/20 04:50	-1.9	0
4/20 05:00	-1.8	↑0.1
4/20 05:10	-1.7	↑0.1
4/20 05:20	-1.5	↑0.2
4/20 05:30	-1.4	↑0.1
4/20 05:40	-1.2	↑0.2
4/20 05:50	-1.1	↑0.1
4/20 06:00	-0.9	↑0.2
4/20 06:10	-0.6	↑0.3
4/20 06:20	-0.4	↑0.2
4/20 06:30	-0.1	↑0.3
4/20 06:40	0.2	↑0.3
4/20 06:50	0.5	↑0.3
4/20 07:00	0.8	↑0.3
4/20 07:10	1.1	↑0.3
4/20 07:20	1.5	↑0.4
4/20 07:30	1.9	↑0.4
4/20 07:40	2.3	↑0.4
4/20 07:50	2.7	↑0.4
4/20 08:00	3.1	↑0.4
4/20 08:10	3.5	↑0.4
4/20 08:20	4.0	↑0.5
4/20 08:30	4.4	↑0.4
4/20 08:40	4.8	↑0.4
4/20 08:50	5.3	↑0.5
4/20 09:00	5.7	↑0.4
4/20 09:10	6.1	↑0.4
4/20 09:20	6.6	↑0.5
4/20 09:30	7.0	↑0.4
4/20 09:40	7.4	↑0.4
4/20 09:50	7.8	↑0.4
4/20 10:00	8.1	↑0.3
4/20 10:10	8.5	↑0.4
4/20 10:20	8.8	↑0.3
4/20 10:30	9.2	↑0.4
4/20 10:40	9.5	↑0.3
4/20 10:50	9.8	↑0.3
4/20 11:00	10.1	↑0.3
4/20 11:10	10.3	↑0.2
4/20 11:20	10.6	↑0.3
4/20 11:30	10.8	↑0.2
4/20 11:40	11.1	↑0.3
4/20 11:50	11.3	↑0.2
4/20 12:00	11.5	↑0.2
4/20 12:10	11.7	↑0.2
4/20 12:20	11.9	↑0.2
4/20 12:30	12.1	↑0.2
4/20 12:40	12.3	↑0.2
4/20 12:50	12.5	↑0.2
4/20 13:00	12.7	↑0.2
4/20 13:10	13.0	↑0.3
4/20 13:20	13.2	↑0.2
4/20 13:30	13.4	↑0.2
4/20 13:40	13.6	↑0.2
4/20 13:50	13.8	↑0.2
4/20 14:00	14.1	↑0.3
4/20 14:10	14.3	↑0.2
4/20 14:20	14.5	↑0.2
4/20 14:30	14.7	↑0.2
4/20 14:40	14.9	↑0.2
4/20 14:50	15.2	↑0.3
4/20 15:00	15.4	↑0.2
4/20 15:10	15.6	↑0.2
4/20 15:20	15.8	↑0.2
4/20 15:30	15.9	↑0.1
4/20 15:40	16.1	↑0.2
4/20 15:50	16.3	↑0.2
4/20 16:00	16.4	↑0.1
4/20 16:10	16.5	↑0.1
4/20 16:20	16.6	↑0.1
4/20 16:30	16.7	↑0.1
4/20 16:40	16.8	↑0.1
4/20 16:50	16.9	↑0.1
4/20 17:00	16.9	0
4/20 17:10	16.9	0	満潮
4/20 17:20	16.9	0	満潮
4/20 17:30	16.9	0
4/20 17:40	16.9	0
4/20 17:50	16.9	0
4/20 18:00	16.8	↓-0.1
4/20 18:10	16.7	↓-0.1
4/20 18:20	16.7	0
4/20 18:30	16.6	↓-0.1
4/20 18:40	16.5	↓-0.1
4/20 18:50	16.4	↓-0.1
4/20 19:00	16.3	↓-0.1
4/20 19:10	16.2	↓-0.1
4/20 19:20	16.1	↓-0.1
4/20 19:30	16.0	↓-0.1
4/20 19:40	15.9	↓-0.1
4/20 19:50	15.7	↓-0.2
4/20 20:00	15.6	↓-0.1
4/20 20:10	15.5	↓-0.1
4/20 20:20	15.3	↓-0.2
4/20 20:30	15.2	↓-0.1
4/20 20:40	15.0	↓-0.2
4/20 20:50	14.8	↓-0.2
4/20 21:00	14.6	↓-0.2
4/20 21:10	14.4	↓-0.2
4/20 21:20	14.2	↓-0.2
4/20 21:30	14.0	↓-0.2
4/20 21:40	13.8	↓-0.2
4/20 21:50	13.5	↓-0.3
4/20 22:00	13.2	↓-0.3
4/20 22:10	12.9	↓-0.3
4/20 22:20	12.6	↓-0.3
4/20 22:30	12.2	↓-0.4
4/20 22:40	11.9	↓-0.3
4/20 22:50	11.5	↓-0.4
4/20 23:00	11.1	↓-0.4
4/20 23:10	10.7	↓-0.4
4/20 23:20	10.2	↓-0.5
4/20 23:30	9.8	↓-0.4
4/20 23:40	9.3	↓-0.5
4/20 23:50	8.8	↓-0.5