20 (土)	03:39	10:22	16:32	22:29
	88cm	2cm	83cm	24cm
大潮 出 04:52 入 18:24 出 19:15 入 05:32 潮干狩り ◎ 08:16～12:23

函館（北海道）2019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	37.6	↑2.9
4/20 00:10	40.5	↑2.9
4/20 00:20	43.6	↑3.1
4/20 00:30	46.8	↑3.2
4/20 00:40	50.1	↑3.3
4/20 00:50	53.4	↑3.3
4/20 01:00	56.6	↑3.2
4/20 01:10	59.9	↑3.3
4/20 01:20	63.1	↑3.2
4/20 01:30	66.2	↑3.1
4/20 01:40	69.2	↑3.0
4/20 01:50	72.0	↑2.8
4/20 02:00	74.6	↑2.6
4/20 02:10	77.1	↑2.5
4/20 02:20	79.3	↑2.2
4/20 02:30	81.3	↑2.0
4/20 02:40	83.0	↑1.7
4/20 02:50	84.5	↑1.5
4/20 03:00	85.7	↑1.2
4/20 03:10	86.6	↑0.9
4/20 03:20	87.2	↑0.6
4/20 03:30	87.6	↑0.4	満潮
4/20 03:40	87.7	↑0.1
4/20 03:50	87.5	↓-0.2
4/20 04:00	87.0	↓-0.5
4/20 04:10	86.3	↓-0.7
4/20 04:20	85.4	↓-0.9
4/20 04:30	84.2	↓-1.2
4/20 04:40	82.8	↓-1.4
4/20 04:50	81.2	↓-1.6
4/20 05:00	79.4	↓-1.8
4/20 05:10	77.4	↓-2.0
4/20 05:20	75.2	↓-2.2
4/20 05:30	72.9	↓-2.3
4/20 05:40	70.3	↓-2.6
4/20 05:50	67.7	↓-2.6
4/20 06:00	64.9	↓-2.8
4/20 06:10	62.0	↓-2.9
4/20 06:20	58.9	↓-3.1
4/20 06:30	55.8	↓-3.1
4/20 06:40	52.6	↓-3.2
4/20 06:50	49.3	↓-3.3
4/20 07:00	46.0	↓-3.3
4/20 07:10	42.7	↓-3.3
4/20 07:20	39.3	↓-3.4
4/20 07:30	36.0	↓-3.3
4/20 07:40	32.7	↓-3.3
4/20 07:50	29.5	↓-3.2
4/20 08:00	26.3	↓-3.2
4/20 08:10	23.3	↓-3.0
4/20 08:20	20.3	↓-3.0
4/20 08:30	17.5	↓-2.8
4/20 08:40	14.9	↓-2.6
4/20 08:50	12.5	↓-2.4
4/20 09:00	10.2	↓-2.3
4/20 09:10	8.2	↓-2.0
4/20 09:20	6.4	↓-1.8
4/20 09:30	4.9	↓-1.5
4/20 09:40	3.6	↓-1.3
4/20 09:50	2.6	↓-1.0
4/20 10:00	1.9	↓-0.7
4/20 10:10	1.4	↓-0.5
4/20 10:20	1.3	↓-0.1	干潮
4/20 10:30	1.4	↑0.1
4/20 10:40	1.8	↑0.4
4/20 10:50	2.5	↑0.7
4/20 11:00	3.5	↑1.0
4/20 11:10	4.8	↑1.3
4/20 11:20	6.3	↑1.5
4/20 11:30	8.1	↑1.8
4/20 11:40	10.2	↑2.1
4/20 11:50	12.5	↑2.3
4/20 12:00	15.1	↑2.6
4/20 12:10	17.9	↑2.8
4/20 12:20	20.8	↑2.9
4/20 12:30	24.0	↑3.2
4/20 12:40	27.2	↑3.2
4/20 12:50	30.6	↑3.4
4/20 13:00	34.1	↑3.5
4/20 13:10	37.7	↑3.6	最大潮位差
4/20 13:20	41.2	↑3.5
4/20 13:30	44.8	↑3.6	最大潮位差
4/20 13:40	48.4	↑3.6	最大潮位差
4/20 13:50	51.9	↑3.5
4/20 14:00	55.3	↑3.4
4/20 14:10	58.5	↑3.2
4/20 14:20	61.7	↑3.2
4/20 14:30	64.6	↑2.9
4/20 14:40	67.4	↑2.8
4/20 14:50	70.0	↑2.6
4/20 15:00	72.4	↑2.4
4/20 15:10	74.5	↑2.1
4/20 15:20	76.3	↑1.8
4/20 15:30	78.0	↑1.7
4/20 15:40	79.3	↑1.3
4/20 15:50	80.5	↑1.2
4/20 16:00	81.3	↑0.8
4/20 16:10	82.0	↑0.7
4/20 16:20	82.3	↑0.3
4/20 16:30	82.5	↑0.2	満潮
4/20 16:40	82.4	↓-0.1
4/20 16:50	82.1	↓-0.3
4/20 17:00	81.6	↓-0.5
4/20 17:10	80.8	↓-0.8
4/20 17:20	79.9	↓-0.9
4/20 17:30	78.8	↓-1.1
4/20 17:40	77.5	↓-1.3
4/20 17:50	76.1	↓-1.4
4/20 18:00	74.4	↓-1.7
4/20 18:10	72.7	↓-1.7
4/20 18:20	70.7	↓-2.0
4/20 18:30	68.7	↓-2.0
4/20 18:40	66.5	↓-2.2
4/20 18:50	64.3	↓-2.2
4/20 19:00	61.9	↓-2.4
4/20 19:10	59.4	↓-2.5
4/20 19:20	56.9	↓-2.5
4/20 19:30	54.4	↓-2.5
4/20 19:40	51.8	↓-2.6
4/20 19:50	49.2	↓-2.6
4/20 20:00	46.6	↓-2.6
4/20 20:10	44.0	↓-2.6
4/20 20:20	41.5	↓-2.5
4/20 20:30	39.1	↓-2.4
4/20 20:40	36.8	↓-2.3
4/20 20:50	34.6	↓-2.2
4/20 21:00	32.6	↓-2.0
4/20 21:10	30.7	↓-1.9
4/20 21:20	29.0	↓-1.7
4/20 21:30	27.5	↓-1.5
4/20 21:40	26.2	↓-1.3
4/20 21:50	25.1	↓-1.1
4/20 22:00	24.3	↓-0.8
4/20 22:10	23.7	↓-0.6
4/20 22:20	23.4	↓-0.3	干潮
4/20 22:30	23.3	↓-0.1
4/20 22:40	23.5	↑0.2
4/20 22:50	23.9	↑0.4
4/20 23:00	24.6	↑0.7
4/20 23:10	25.6	↑1.0
4/20 23:20	26.8	↑1.2
4/20 23:30	28.3	↑1.5
4/20 23:40	30.0	↑1.7
4/20 23:50	31.9	↑1.9