20 (土)	18:59	02:28	-	-
	29cm	-3cm	-	-
中潮 出 04:52 入 18:26 出 23:41 入 08:56 潮干狩り ◎ 04:52～08:30

江差／桧山（北海道）2052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	2.6	↓-0.8
4/20 00:10	1.8	↓-0.8
4/20 00:20	1.1	↓-0.7
4/20 00:30	0.4	↓-0.7
4/20 00:40	-0.2	↓-0.6
4/20 00:50	-0.8	↓-0.6
4/20 01:00	-1.3	↓-0.5
4/20 01:10	-1.8	↓-0.5
4/20 01:20	-2.2	↓-0.4
4/20 01:30	-2.5	↓-0.3
4/20 01:40	-2.8	↓-0.3
4/20 01:50	-3.1	↓-0.3
4/20 02:00	-3.2	↓-0.1
4/20 02:10	-3.4	↓-0.2
4/20 02:20	-3.4	0	干潮
4/20 02:30	-3.4	0
4/20 02:40	-3.4	0
4/20 02:50	-3.3	↑0.1
4/20 03:00	-3.2	↑0.1
4/20 03:10	-3.0	↑0.2
4/20 03:20	-2.8	↑0.2
4/20 03:30	-2.5	↑0.3
4/20 03:40	-2.2	↑0.3
4/20 03:50	-1.9	↑0.3
4/20 04:00	-1.5	↑0.4
4/20 04:10	-1.1	↑0.4
4/20 04:20	-0.7	↑0.4
4/20 04:30	-0.2	↑0.5
4/20 04:40	0.2	↑0.4
4/20 04:50	0.7	↑0.5
4/20 05:00	1.2	↑0.5
4/20 05:10	1.7	↑0.5
4/20 05:20	2.1	↑0.4
4/20 05:30	2.6	↑0.5
4/20 05:40	3.1	↑0.5
4/20 05:50	3.6	↑0.5
4/20 06:00	4.1	↑0.5
4/20 06:10	4.5	↑0.4
4/20 06:20	5.0	↑0.5
4/20 06:30	5.4	↑0.4
4/20 06:40	5.8	↑0.4
4/20 06:50	6.2	↑0.4
4/20 07:00	6.6	↑0.4
4/20 07:10	6.9	↑0.3
4/20 07:20	7.3	↑0.4
4/20 07:30	7.6	↑0.3
4/20 07:40	7.8	↑0.2
4/20 07:50	8.1	↑0.3
4/20 08:00	8.3	↑0.2
4/20 08:10	8.5	↑0.2
4/20 08:20	8.7	↑0.2
4/20 08:30	8.9	↑0.2
4/20 08:40	9.0	↑0.1
4/20 08:50	9.1	↑0.1
4/20 09:00	9.2	↑0.1
4/20 09:10	9.3	↑0.1
4/20 09:20	9.4	↑0.1
4/20 09:30	9.4	0
4/20 09:40	9.5	↑0.1
4/20 09:50	9.5	0
4/20 10:00	9.6	↑0.1
4/20 10:10	9.6	0
4/20 10:20	9.6	0
4/20 10:30	9.7	↑0.1
4/20 10:40	9.7	0
4/20 10:50	9.7	0
4/20 11:00	9.8	↑0.1
4/20 11:10	9.9	↑0.1
4/20 11:20	9.9	0
4/20 11:30	10.0	↑0.1
4/20 11:40	10.2	↑0.2
4/20 11:50	10.3	↑0.1
4/20 12:00	10.5	↑0.2
4/20 12:10	10.6	↑0.1
4/20 12:20	10.9	↑0.3
4/20 12:30	11.1	↑0.2
4/20 12:40	11.4	↑0.3
4/20 12:50	11.6	↑0.2
4/20 13:00	12.0	↑0.4
4/20 13:10	12.3	↑0.3
4/20 13:20	12.7	↑0.4
4/20 13:30	13.1	↑0.4
4/20 13:40	13.6	↑0.5
4/20 13:50	14.0	↑0.4
4/20 14:00	14.5	↑0.5
4/20 14:10	15.0	↑0.5
4/20 14:20	15.6	↑0.6
4/20 14:30	16.1	↑0.5
4/20 14:40	16.7	↑0.6
4/20 14:50	17.3	↑0.6
4/20 15:00	17.9	↑0.6
4/20 15:10	18.6	↑0.7
4/20 15:20	19.2	↑0.6
4/20 15:30	19.8	↑0.6
4/20 15:40	20.5	↑0.7
4/20 15:50	21.1	↑0.6
4/20 16:00	21.8	↑0.7
4/20 16:10	22.4	↑0.6
4/20 16:20	23.0	↑0.6
4/20 16:30	23.6	↑0.6
4/20 16:40	24.2	↑0.6
4/20 16:50	24.8	↑0.6
4/20 17:00	25.3	↑0.5
4/20 17:10	25.8	↑0.5
4/20 17:20	26.3	↑0.5
4/20 17:30	26.7	↑0.4
4/20 17:40	27.1	↑0.4
4/20 17:50	27.5	↑0.4
4/20 18:00	27.8	↑0.3
4/20 18:10	28.1	↑0.3
4/20 18:20	28.3	↑0.2
4/20 18:30	28.5	↑0.2
4/20 18:40	28.7	↑0.2
4/20 18:50	28.7	0	満潮
4/20 19:00	28.7	0
4/20 19:10	28.7	0
4/20 19:20	28.6	↓-0.1
4/20 19:30	28.5	↓-0.1
4/20 19:40	28.2	↓-0.3
4/20 19:50	28.0	↓-0.2
4/20 20:00	27.7	↓-0.3
4/20 20:10	27.3	↓-0.4
4/20 20:20	26.8	↓-0.5
4/20 20:30	26.3	↓-0.5
4/20 20:40	25.8	↓-0.5
4/20 20:50	25.2	↓-0.6
4/20 21:00	24.6	↓-0.6
4/20 21:10	23.9	↓-0.7
4/20 21:20	23.2	↓-0.7
4/20 21:30	22.4	↓-0.8
4/20 21:40	21.6	↓-0.8
4/20 21:50	20.8	↓-0.8
4/20 22:00	19.9	↓-0.9
4/20 22:10	19.0	↓-0.9
4/20 22:20	18.1	↓-0.9
4/20 22:30	17.2	↓-0.9
4/20 22:40	16.2	↓-1.0	最大潮位差
4/20 22:50	15.3	↓-0.9
4/20 23:00	14.3	↓-1.0	最大潮位差
4/20 23:10	13.4	↓-0.9
4/20 23:20	12.4	↓-1.0	最大潮位差
4/20 23:30	11.4	↓-1.0	最大潮位差
4/20 23:40	10.5	↓-0.9
4/20 23:50	9.6	↓-0.9