21 (土)	08:05	01:36	19:06	13:01
	78cm	28cm	94cm	57cm
小潮 出 05:23 入 17:39 出 21:42 入 11:53

函館（北海道）2019年09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
9/21 00:00	36.4	↓-1.8
9/21 00:10	34.7	↓-1.7
9/21 00:20	33.2	↓-1.5
9/21 00:30	31.8	↓-1.4
9/21 00:40	30.7	↓-1.1
9/21 00:50	29.7	↓-1.0
9/21 01:00	28.8	↓-0.9
9/21 01:10	28.2	↓-0.6
9/21 01:20	27.8	↓-0.4
9/21 01:30	27.6	↓-0.2	干潮
9/21 01:40	27.6	0
9/21 01:50	27.8	↑0.2
9/21 02:00	28.2	↑0.4
9/21 02:10	28.8	↑0.6
9/21 02:20	29.5	↑0.7
9/21 02:30	30.5	↑1.0
9/21 02:40	31.6	↑1.1
9/21 02:50	32.8	↑1.2
9/21 03:00	34.2	↑1.4
9/21 03:10	35.7	↑1.5
9/21 03:20	37.3	↑1.6
9/21 03:30	39.0	↑1.7
9/21 03:40	40.8	↑1.8
9/21 03:50	42.7	↑1.9
9/21 04:00	44.5	↑1.8
9/21 04:10	46.5	↑2.0
9/21 04:20	48.4	↑1.9
9/21 04:30	50.4	↑2.0
9/21 04:40	52.3	↑1.9
9/21 04:50	54.3	↑2.0
9/21 05:00	56.2	↑1.9
9/21 05:10	58.1	↑1.9
9/21 05:20	59.9	↑1.8
9/21 05:30	61.7	↑1.8
9/21 05:40	63.5	↑1.8
9/21 05:50	65.2	↑1.7
9/21 06:00	66.8	↑1.6
9/21 06:10	68.3	↑1.5
9/21 06:20	69.7	↑1.4
9/21 06:30	71.0	↑1.3
9/21 06:40	72.2	↑1.2
9/21 06:50	73.3	↑1.1
9/21 07:00	74.3	↑1.0
9/21 07:10	75.1	↑0.8
9/21 07:20	75.8	↑0.7
9/21 07:30	76.3	↑0.5
9/21 07:40	76.7	↑0.4
9/21 07:50	77.0	↑0.3
9/21 08:00	77.1	↑0.1	満潮
9/21 08:10	77.1	0
9/21 08:20	76.9	↓-0.2
9/21 08:30	76.7	↓-0.2
9/21 08:40	76.3	↓-0.4
9/21 08:50	75.8	↓-0.5
9/21 09:00	75.2	↓-0.6
9/21 09:10	74.5	↓-0.7
9/21 09:20	73.7	↓-0.8
9/21 09:30	72.9	↓-0.8
9/21 09:40	72.0	↓-0.9
9/21 09:50	71.1	↓-0.9
9/21 10:00	70.1	↓-1.0
9/21 10:10	69.1	↓-1.0
9/21 10:20	68.1	↓-1.0
9/21 10:30	67.1	↓-1.0
9/21 10:40	66.1	↓-1.0
9/21 10:50	65.1	↓-1.0
9/21 11:00	64.1	↓-1.0
9/21 11:10	63.1	↓-1.0
9/21 11:20	62.2	↓-0.9
9/21 11:30	61.3	↓-0.9
9/21 11:40	60.5	↓-0.8
9/21 11:50	59.7	↓-0.8
9/21 12:00	59.0	↓-0.7
9/21 12:10	58.4	↓-0.6
9/21 12:20	57.9	↓-0.5
9/21 12:30	57.5	↓-0.4
9/21 12:40	57.2	↓-0.3
9/21 12:50	57.0	↓-0.2
9/21 13:00	56.9	↓-0.1	干潮
9/21 13:10	57.0	↑0.1
9/21 13:20	57.2	↑0.2
9/21 13:30	57.5	↑0.3
9/21 13:40	58.0	↑0.5
9/21 13:50	58.6	↑0.6
9/21 14:00	59.3	↑0.7
9/21 14:10	60.2	↑0.9
9/21 14:20	61.2	↑1.0
9/21 14:30	62.4	↑1.2
9/21 14:40	63.6	↑1.2
9/21 14:50	64.9	↑1.3
9/21 15:00	66.3	↑1.4
9/21 15:10	67.8	↑1.5
9/21 15:20	69.4	↑1.6
9/21 15:30	70.9	↑1.5
9/21 15:40	72.5	↑1.6
9/21 15:50	74.2	↑1.7
9/21 16:00	75.8	↑1.6
9/21 16:10	77.4	↑1.6
9/21 16:20	78.9	↑1.5
9/21 16:30	80.4	↑1.5
9/21 16:40	81.9	↑1.5
9/21 16:50	83.3	↑1.4
9/21 17:00	84.7	↑1.4
9/21 17:10	86.0	↑1.3
9/21 17:20	87.2	↑1.2
9/21 17:30	88.3	↑1.1
9/21 17:40	89.3	↑1.0
9/21 17:50	90.3	↑1.0
9/21 18:00	91.1	↑0.8
9/21 18:10	91.9	↑0.8
9/21 18:20	92.5	↑0.6
9/21 18:30	93.0	↑0.5
9/21 18:40	93.4	↑0.4
9/21 18:50	93.7	↑0.3
9/21 19:00	93.8	↑0.1	満潮
9/21 19:10	93.8	0
9/21 19:20	93.7	↓-0.1
9/21 19:30	93.4	↓-0.3
9/21 19:40	93.0	↓-0.4
9/21 19:50	92.4	↓-0.6
9/21 20:00	91.7	↓-0.7
9/21 20:10	90.8	↓-0.9
9/21 20:20	89.8	↓-1.0
9/21 20:30	88.6	↓-1.2
9/21 20:40	87.3	↓-1.3
9/21 20:50	85.9	↓-1.4
9/21 21:00	84.3	↓-1.6
9/21 21:10	82.7	↓-1.6
9/21 21:20	80.9	↓-1.8
9/21 21:30	79.0	↓-1.9
9/21 21:40	77.1	↓-1.9
9/21 21:50	75.1	↓-2.0
9/21 22:00	73.0	↓-2.1
9/21 22:10	70.9	↓-2.1
9/21 22:20	68.7	↓-2.2
9/21 22:30	66.5	↓-2.2
9/21 22:40	64.3	↓-2.2
9/21 22:50	62.1	↓-2.2
9/21 23:00	59.9	↓-2.2
9/21 23:10	57.6	↓-2.3	最大潮位差
9/21 23:20	55.4	↓-2.2
9/21 23:30	53.3	↓-2.1
9/21 23:40	51.2	↓-2.1
9/21 23:50	49.1	↓-2.1