21 (火)	17:12	00:51	-	-
	34cm	-8cm	-	-
中潮 出 04:51 入 18:27 出 07:02 入 23:25 潮干狩り ◎ 04:51～06:39

江差／桧山（北海道）2026年04月21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
4/21 00:00	-7.4	↓-0.4
4/21 00:10	-7.7	↓-0.3
4/21 00:20	-8.0	↓-0.3
4/21 00:30	-8.2	↓-0.2
4/21 00:40	-8.3	↓-0.1
4/21 00:50	-8.3	0	干潮
4/21 01:00	-8.3	0
4/21 01:10	-8.2	↑0.1
4/21 01:20	-8.0	↑0.2
4/21 01:30	-7.8	↑0.2
4/21 01:40	-7.5	↑0.3
4/21 01:50	-7.2	↑0.3
4/21 02:00	-6.8	↑0.4
4/21 02:10	-6.3	↑0.5
4/21 02:20	-5.9	↑0.4
4/21 02:30	-5.3	↑0.6
4/21 02:40	-4.8	↑0.5
4/21 02:50	-4.2	↑0.6
4/21 03:00	-3.6	↑0.6
4/21 03:10	-3.0	↑0.6
4/21 03:20	-2.3	↑0.7
4/21 03:30	-1.6	↑0.7
4/21 03:40	-1.0	↑0.6
4/21 03:50	-0.3	↑0.7
4/21 04:00	0.4	↑0.7
4/21 04:10	1.1	↑0.7
4/21 04:20	1.7	↑0.6
4/21 04:30	2.4	↑0.7
4/21 04:40	3.0	↑0.6
4/21 04:50	3.7	↑0.7
4/21 05:00	4.3	↑0.6
4/21 05:10	4.9	↑0.6
4/21 05:20	5.4	↑0.5
4/21 05:30	6.0	↑0.6
4/21 05:40	6.5	↑0.5
4/21 05:50	7.0	↑0.5
4/21 06:00	7.4	↑0.4
4/21 06:10	7.8	↑0.4
4/21 06:20	8.2	↑0.4
4/21 06:30	8.6	↑0.4
4/21 06:40	8.9	↑0.3
4/21 06:50	9.2	↑0.3
4/21 07:00	9.5	↑0.3
4/21 07:10	9.7	↑0.2
4/21 07:20	9.9	↑0.2
4/21 07:30	10.1	↑0.2
4/21 07:40	10.3	↑0.2
4/21 07:50	10.5	↑0.2
4/21 08:00	10.6	↑0.1
4/21 08:10	10.7	↑0.1
4/21 08:20	10.8	↑0.1
4/21 08:30	10.9	↑0.1
4/21 08:40	11.0	↑0.1
4/21 08:50	11.1	↑0.1
4/21 09:00	11.2	↑0.1
4/21 09:10	11.3	↑0.1
4/21 09:20	11.4	↑0.1
4/21 09:30	11.5	↑0.1
4/21 09:40	11.6	↑0.1
4/21 09:50	11.8	↑0.2
4/21 10:00	11.9	↑0.1
4/21 10:10	12.1	↑0.2
4/21 10:20	12.3	↑0.2
4/21 10:30	12.5	↑0.2
4/21 10:40	12.8	↑0.3
4/21 10:50	13.0	↑0.2
4/21 11:00	13.3	↑0.3
4/21 11:10	13.7	↑0.4
4/21 11:20	14.1	↑0.4
4/21 11:30	14.5	↑0.4
4/21 11:40	14.9	↑0.4
4/21 11:50	15.4	↑0.5
4/21 12:00	15.9	↑0.5
4/21 12:10	16.4	↑0.5
4/21 12:20	17.0	↑0.6
4/21 12:30	17.6	↑0.6
4/21 12:40	18.2	↑0.6
4/21 12:50	18.9	↑0.7
4/21 13:00	19.5	↑0.6
4/21 13:10	20.2	↑0.7
4/21 13:20	20.9	↑0.7
4/21 13:30	21.7	↑0.8
4/21 13:40	22.4	↑0.7
4/21 13:50	23.1	↑0.7
4/21 14:00	23.9	↑0.8
4/21 14:10	24.6	↑0.7
4/21 14:20	25.4	↑0.8
4/21 14:30	26.1	↑0.7
4/21 14:40	26.8	↑0.7
4/21 14:50	27.5	↑0.7
4/21 15:00	28.2	↑0.7
4/21 15:10	28.9	↑0.7
4/21 15:20	29.5	↑0.6
4/21 15:30	30.1	↑0.6
4/21 15:40	30.6	↑0.5
4/21 15:50	31.1	↑0.5
4/21 16:00	31.6	↑0.5
4/21 16:10	32.0	↑0.4
4/21 16:20	32.4	↑0.4
4/21 16:30	32.7	↑0.3
4/21 16:40	32.9	↑0.2
4/21 16:50	33.1	↑0.2
4/21 17:00	33.2	↑0.1
4/21 17:10	33.2	0	満潮
4/21 17:20	33.2	0
4/21 17:30	33.1	↓-0.1
4/21 17:40	32.9	↓-0.2
4/21 17:50	32.7	↓-0.2
4/21 18:00	32.4	↓-0.3
4/21 18:10	32.0	↓-0.4
4/21 18:20	31.6	↓-0.4
4/21 18:30	31.0	↓-0.6
4/21 18:40	30.4	↓-0.6
4/21 18:50	29.8	↓-0.6
4/21 19:00	29.0	↓-0.8
4/21 19:10	28.2	↓-0.8
4/21 19:20	27.4	↓-0.8
4/21 19:30	26.5	↓-0.9
4/21 19:40	25.5	↓-1.0
4/21 19:50	24.5	↓-1.0
4/21 20:00	23.4	↓-1.1
4/21 20:10	22.3	↓-1.1
4/21 20:20	21.2	↓-1.1
4/21 20:30	20.0	↓-1.2
4/21 20:40	18.8	↓-1.2
4/21 20:50	17.6	↓-1.2
4/21 21:00	16.3	↓-1.3	最大潮位差
4/21 21:10	15.1	↓-1.2
4/21 21:20	13.8	↓-1.3	最大潮位差
4/21 21:30	12.6	↓-1.2
4/21 21:40	11.3	↓-1.3	最大潮位差
4/21 21:50	10.0	↓-1.3	最大潮位差
4/21 22:00	8.8	↓-1.2
4/21 22:10	7.6	↓-1.2
4/21 22:20	6.4	↓-1.2
4/21 22:30	5.2	↓-1.2
4/21 22:40	4.1	↓-1.1
4/21 22:50	3.0	↓-1.1
4/21 23:00	1.9	↓-1.1
4/21 23:10	0.9	↓-1.0
4/21 23:20	-0.1	↓-1.0
4/21 23:30	-1.0	↓-0.9
4/21 23:40	-1.9	↓-0.9
4/21 23:50	-2.7	↓-0.8