20 (月)	04:32	09:49	15:18	22:29
	77cm	41cm	95cm	-2cm
大潮 出 06:27 入 17:17 出 06:45 入 17:04

函館（北海道）2023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	17.8	↑3.0
2/20 00:10	20.8	↑3.0
2/20 00:20	24.0	↑3.2
2/20 00:30	27.2	↑3.2
2/20 00:40	30.5	↑3.3
2/20 00:50	33.8	↑3.3
2/20 01:00	37.1	↑3.3
2/20 01:10	40.4	↑3.3
2/20 01:20	43.7	↑3.3
2/20 01:30	46.8	↑3.1
2/20 01:40	49.9	↑3.1
2/20 01:50	52.8	↑2.9
2/20 02:00	55.6	↑2.8
2/20 02:10	58.3	↑2.7
2/20 02:20	60.8	↑2.5
2/20 02:30	63.1	↑2.3
2/20 02:40	65.2	↑2.1
2/20 02:50	67.2	↑2.0
2/20 03:00	68.9	↑1.7
2/20 03:10	70.5	↑1.6
2/20 03:20	71.9	↑1.4
2/20 03:30	73.0	↑1.1
2/20 03:40	74.0	↑1.0
2/20 03:50	74.8	↑0.8
2/20 04:00	75.5	↑0.7
2/20 04:10	75.9	↑0.4
2/20 04:20	76.2	↑0.3
2/20 04:30	76.3	↑0.1	満潮
2/20 04:40	76.2	↓-0.1
2/20 04:50	76.0	↓-0.2
2/20 05:00	75.6	↓-0.4
2/20 05:10	75.1	↓-0.5
2/20 05:20	74.4	↓-0.7
2/20 05:30	73.5	↓-0.9
2/20 05:40	72.5	↓-1.0
2/20 05:50	71.4	↓-1.1
2/20 06:00	70.2	↓-1.2
2/20 06:10	68.8	↓-1.4
2/20 06:20	67.4	↓-1.4
2/20 06:30	65.8	↓-1.6
2/20 06:40	64.2	↓-1.6
2/20 06:50	62.5	↓-1.7
2/20 07:00	60.8	↓-1.7
2/20 07:10	59.0	↓-1.8
2/20 07:20	57.3	↓-1.7
2/20 07:30	55.5	↓-1.8
2/20 07:40	53.7	↓-1.8
2/20 07:50	52.0	↓-1.7
2/20 08:00	50.4	↓-1.6
2/20 08:10	48.8	↓-1.6
2/20 08:20	47.3	↓-1.5
2/20 08:30	46.0	↓-1.3
2/20 08:40	44.7	↓-1.3
2/20 08:50	43.6	↓-1.1
2/20 09:00	42.6	↓-1.0
2/20 09:10	41.8	↓-0.8
2/20 09:20	41.2	↓-0.6
2/20 09:30	40.7	↓-0.5
2/20 09:40	40.5	↓-0.2	干潮
2/20 09:50	40.4	↓-0.1
2/20 10:00	40.5	↑0.1
2/20 10:10	40.9	↑0.4
2/20 10:20	41.5	↑0.6
2/20 10:30	42.2	↑0.7
2/20 10:40	43.2	↑1.0
2/20 10:50	44.4	↑1.2
2/20 11:00	45.8	↑1.4
2/20 11:10	47.4	↑1.6
2/20 11:20	49.2	↑1.8
2/20 11:30	51.1	↑1.9
2/20 11:40	53.3	↑2.2
2/20 11:50	55.5	↑2.2
2/20 12:00	57.9	↑2.4
2/20 12:10	60.4	↑2.5
2/20 12:20	63.0	↑2.6
2/20 12:30	65.6	↑2.6
2/20 12:40	68.2	↑2.6
2/20 12:50	70.9	↑2.7
2/20 13:00	73.5	↑2.6
2/20 13:10	76.1	↑2.6
2/20 13:20	78.6	↑2.5
2/20 13:30	81.0	↑2.4
2/20 13:40	83.2	↑2.2
2/20 13:50	85.3	↑2.1
2/20 14:00	87.2	↑1.9
2/20 14:10	88.9	↑1.7
2/20 14:20	90.4	↑1.5
2/20 14:30	91.7	↑1.3
2/20 14:40	92.7	↑1.0
2/20 14:50	93.5	↑0.8
2/20 15:00	94.0	↑0.5
2/20 15:10	94.3	↑0.3	満潮
2/20 15:20	94.4	↑0.1
2/20 15:30	94.2	↓-0.2
2/20 15:40	93.7	↓-0.5
2/20 15:50	93.0	↓-0.7
2/20 16:00	92.1	↓-0.9
2/20 16:10	91.0	↓-1.1
2/20 16:20	89.6	↓-1.4
2/20 16:30	88.0	↓-1.6
2/20 16:40	86.3	↓-1.7
2/20 16:50	84.3	↓-2.0
2/20 17:00	82.2	↓-2.1
2/20 17:10	79.8	↓-2.4
2/20 17:20	77.4	↓-2.4
2/20 17:30	74.7	↓-2.7
2/20 17:40	71.9	↓-2.8
2/20 17:50	69.0	↓-2.9
2/20 18:00	66.0	↓-3.0
2/20 18:10	62.8	↓-3.2
2/20 18:20	59.6	↓-3.2
2/20 18:30	56.2	↓-3.4
2/20 18:40	52.8	↓-3.4
2/20 18:50	49.4	↓-3.4
2/20 19:00	45.9	↓-3.5
2/20 19:10	42.3	↓-3.6	最大潮位差
2/20 19:20	38.8	↓-3.5
2/20 19:30	35.3	↓-3.5
2/20 19:40	31.8	↓-3.5
2/20 19:50	28.4	↓-3.4
2/20 20:00	25.1	↓-3.3
2/20 20:10	21.9	↓-3.2
2/20 20:20	18.8	↓-3.1
2/20 20:30	15.9	↓-2.9
2/20 20:40	13.1	↓-2.8
2/20 20:50	10.5	↓-2.6
2/20 21:00	8.1	↓-2.4
2/20 21:10	5.9	↓-2.2
2/20 21:20	3.9	↓-2.0
2/20 21:30	2.2	↓-1.7
2/20 21:40	0.7	↓-1.5
2/20 21:50	-0.5	↓-1.2
2/20 22:00	-1.4	↓-0.9
2/20 22:10	-2.1	↓-0.7
2/20 22:20	-2.5	↓-0.4	干潮
2/20 22:30	-2.5	0
2/20 22:40	-2.3	↑0.2
2/20 22:50	-1.8	↑0.5
2/20 23:00	-1.0	↑0.8
2/20 23:10	0.0	↑1.0
2/20 23:20	1.4	0
2/20 23:30	3.0	↑1.6
2/20 23:40	4.9	↑1.9
2/20 23:50	7.1	↑2.2