20 (水)	04:33	10:11	15:50	22:49
	80cm	34cm	96cm	-1cm
大潮 出 06:27 入 17:17 出 18:00 入 06:55

函館（北海道）2019年02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
2/20 00:00	13.5	↑2.8
2/20 00:10	16.5	↑3.0
2/20 00:20	19.6	↑3.1
2/20 00:30	22.9	↑3.3
2/20 00:40	26.4	↑3.5
2/20 00:50	29.9	↑3.5
2/20 01:00	33.4	↑3.5
2/20 01:10	37.0	↑3.6
2/20 01:20	40.6	↑3.6
2/20 01:30	44.2	↑3.6
2/20 01:40	47.7	↑3.5
2/20 01:50	51.1	↑3.4
2/20 02:00	54.3	↑3.2
2/20 02:10	57.5	↑3.2
2/20 02:20	60.4	↑2.9
2/20 02:30	63.2	↑2.8
2/20 02:40	65.8	↑2.6
2/20 02:50	68.2	↑2.4
2/20 03:00	70.3	↑2.1
2/20 03:10	72.3	↑2.0
2/20 03:20	73.9	↑1.6
2/20 03:30	75.4	↑1.5
2/20 03:40	76.6	↑1.2
2/20 03:50	77.6	↑1.0
2/20 04:00	78.4	↑0.8
2/20 04:10	78.9	↑0.5
2/20 04:20	79.3	↑0.4
2/20 04:30	79.4	↑0.1	満潮
2/20 04:40	79.3	↓-0.1
2/20 04:50	79.1	↓-0.2
2/20 05:00	78.6	↓-0.5
2/20 05:10	78.0	↓-0.6
2/20 05:20	77.2	↓-0.8
2/20 05:30	76.3	↓-0.9
2/20 05:40	75.2	↓-1.1
2/20 05:50	73.9	↓-1.3
2/20 06:00	72.6	↓-1.3
2/20 06:10	71.1	↓-1.5
2/20 06:20	69.4	↓-1.7
2/20 06:30	67.7	↓-1.7
2/20 06:40	65.9	↓-1.8
2/20 06:50	64.0	↓-1.9
2/20 07:00	62.0	↓-2.0
2/20 07:10	59.9	↓-2.1
2/20 07:20	57.9	↓-2.0
2/20 07:30	55.8	↓-2.1
2/20 07:40	53.7	↓-2.1
2/20 07:50	51.6	↓-2.1
2/20 08:00	49.5	↓-2.1
2/20 08:10	47.6	↓-1.9
2/20 08:20	45.6	↓-2.0
2/20 08:30	43.8	↓-1.8
2/20 08:40	42.1	↓-1.7
2/20 08:50	40.5	↓-1.6
2/20 09:00	39.0	↓-1.5
2/20 09:10	37.7	↓-1.3
2/20 09:20	36.6	↓-1.1
2/20 09:30	35.7	↓-0.9
2/20 09:40	34.9	↓-0.8
2/20 09:50	34.4	↓-0.5
2/20 10:00	34.1	↓-0.3
2/20 10:10	34.0	↓-0.1	干潮
2/20 10:20	34.1	↑0.1
2/20 10:30	34.4	↑0.3
2/20 10:40	35.0	↑0.6
2/20 10:50	35.8	↑0.8
2/20 11:00	36.8	↑1.0
2/20 11:10	38.0	↑1.2
2/20 11:20	39.5	↑1.5
2/20 11:30	41.2	↑1.7
2/20 11:40	43.0	↑1.8
2/20 11:50	45.1	↑2.1
2/20 12:00	47.3	↑2.2
2/20 12:10	49.7	↑2.4
2/20 12:20	52.3	↑2.6
2/20 12:30	54.9	↑2.6
2/20 12:40	57.7	↑2.8
2/20 12:50	60.5	↑2.8
2/20 13:00	63.4	↑2.9
2/20 13:10	66.3	↑2.9
2/20 13:20	69.2	↑2.9
2/20 13:30	72.1	↑2.9
2/20 13:40	74.9	↑2.8
2/20 13:50	77.6	↑2.7
2/20 14:00	80.2	↑2.6
2/20 14:10	82.7	↑2.5
2/20 14:20	85.0	↑2.3
2/20 14:30	87.0	↑2.0
2/20 14:40	88.9	↑1.9
2/20 14:50	90.6	↑1.7
2/20 15:00	92.0	↑1.4
2/20 15:10	93.2	↑1.2
2/20 15:20	94.1	↑0.9
2/20 15:30	94.7	↑0.6
2/20 15:40	95.1	↑0.4	満潮
2/20 15:50	95.2	↑0.1	満潮
2/20 16:00	95.0	↓-0.2
2/20 16:10	94.6	↓-0.4
2/20 16:20	94.0	↓-0.6
2/20 16:30	93.0	↓-1.0
2/20 16:40	91.9	↓-1.1
2/20 16:50	90.5	↓-1.4
2/20 17:00	88.9	↓-1.6
2/20 17:10	87.1	↓-1.8
2/20 17:20	85.1	↓-2.0
2/20 17:30	82.9	↓-2.2
2/20 17:40	80.5	↓-2.4
2/20 17:50	77.9	↓-2.6
2/20 18:00	75.2	↓-2.7
2/20 18:10	72.4	↓-2.8
2/20 18:20	69.4	↓-3.0
2/20 18:30	66.2	↓-3.2
2/20 18:40	63.0	↓-3.2
2/20 18:50	59.7	↓-3.3
2/20 19:00	56.2	↓-3.5
2/20 19:10	52.7	↓-3.5
2/20 19:20	49.2	↓-3.5
2/20 19:30	45.6	↓-3.6
2/20 19:40	41.9	↓-3.7	最大潮位差
2/20 19:50	38.3	↓-3.6
2/20 20:00	34.8	↓-3.5
2/20 20:10	31.2	↓-3.6
2/20 20:20	27.8	↓-3.4
2/20 20:30	24.4	↓-3.4
2/20 20:40	21.1	↓-3.3
2/20 20:50	18.0	↓-3.1
2/20 21:00	15.1	↓-2.9
2/20 21:10	12.3	↓-2.8
2/20 21:20	9.8	↓-2.5
2/20 21:30	7.5	↓-2.3
2/20 21:40	5.4	↓-2.1
2/20 21:50	3.5	↓-1.9
2/20 22:00	2.0	↓-1.5
2/20 22:10	0.7	↓-1.3
2/20 22:20	-0.3	↓-1.0
2/20 22:30	-1.0	↓-0.7
2/20 22:40	-1.4	↓-0.4	干潮
2/20 22:50	-1.4	0
2/20 23:00	-1.2	↑0.2
2/20 23:10	-0.7	↑0.5
2/20 23:20	0.2	↑0.9
2/20 23:30	1.3	↑1.1
2/20 23:40	2.7	↑1.4
2/20 23:50	4.4	↑1.7