4 (木)	12:55	04:54	22:39	16:13
	74cm	33cm	83cm	71cm
長潮 出 05:37 入 17:16 出 - 入 14:25

函館（北海道）2018年10月4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
10/4 00:00	67.7	↓-1.7
10/4 00:10	66.0	↓-1.7
10/4 00:20	64.3	↓-1.7
10/4 00:30	62.5	↓-1.8	最大潮位差
10/4 00:40	60.8	↓-1.7
10/4 00:50	59.0	↓-1.8	最大潮位差
10/4 01:00	57.2	↓-1.8	最大潮位差
10/4 01:10	55.4	↓-1.8	最大潮位差
10/4 01:20	53.7	↓-1.7
10/4 01:30	51.9	↓-1.8	最大潮位差
10/4 01:40	50.2	↓-1.7
10/4 01:50	48.5	↓-1.7
10/4 02:00	46.9	↓-1.6
10/4 02:10	45.3	↓-1.6
10/4 02:20	43.8	↓-1.5
10/4 02:30	42.3	↓-1.5
10/4 02:40	40.9	↓-1.4
10/4 02:50	39.7	↓-1.2
10/4 03:00	38.5	↓-1.2
10/4 03:10	37.4	↓-1.1
10/4 03:20	36.4	↓-1.0
10/4 03:30	35.5	↓-0.9
10/4 03:40	34.8	↓-0.7
10/4 03:50	34.1	↓-0.7
10/4 04:00	33.5	↓-0.6
10/4 04:10	33.1	↓-0.4
10/4 04:20	32.7	↓-0.4
10/4 04:30	32.5	↓-0.2
10/4 04:40	32.3	↓-0.2
10/4 04:50	32.2	↓-0.1	干潮
10/4 05:00	32.3	↑0.1
10/4 05:10	32.4	↑0.1
10/4 05:20	32.5	↑0.1
10/4 05:30	32.8	↑0.3
10/4 05:40	33.1	↑0.3
10/4 05:50	33.5	↑0.4
10/4 06:00	34.0	↑0.5
10/4 06:10	34.5	↑0.5
10/4 06:20	35.2	↑0.7
10/4 06:30	35.9	↑0.7
10/4 06:40	36.6	↑0.7
10/4 06:50	37.5	↑0.9
10/4 07:00	38.5	↑1.0
10/4 07:10	39.5	↑1.0
10/4 07:20	40.6	↑1.1
10/4 07:30	41.8	↑1.2
10/4 07:40	43.0	↑1.2
10/4 07:50	44.4	↑1.4
10/4 08:00	45.8	↑1.4
10/4 08:10	47.2	↑1.4
10/4 08:20	48.7	↑1.5
10/4 08:30	50.2	↑1.5
10/4 08:40	51.8	↑1.6
10/4 08:50	53.3	↑1.5
10/4 09:00	54.9	↑1.6
10/4 09:10	56.4	↑1.5
10/4 09:20	57.9	↑1.5
10/4 09:30	59.4	↑1.5
10/4 09:40	60.8	↑1.4
10/4 09:50	62.2	↑1.4
10/4 10:00	63.4	↑1.2
10/4 10:10	64.7	↑1.3
10/4 10:20	65.8	↑1.1
10/4 10:30	66.9	↑1.1
10/4 10:40	67.8	↑0.9
10/4 10:50	68.7	↑0.9
10/4 11:00	69.5	↑0.8
10/4 11:10	70.2	↑0.7
10/4 11:20	70.8	↑0.6
10/4 11:30	71.4	↑0.6
10/4 11:40	71.9	↑0.5
10/4 11:50	72.3	↑0.4
10/4 12:00	72.6	↑0.3
10/4 12:10	72.9	↑0.3
10/4 12:20	73.1	↑0.2
10/4 12:30	73.2	↑0.1
10/4 12:40	73.3	↑0.1
10/4 12:50	73.4	↑0.1	満潮
10/4 13:00	73.3	↓-0.1
10/4 13:10	73.3	0
10/4 13:20	73.2	↓-0.1
10/4 13:30	73.1	↓-0.1
10/4 13:40	72.9	↓-0.2
10/4 13:50	72.7	↓-0.2
10/4 14:00	72.5	↓-0.2
10/4 14:10	72.3	↓-0.2
10/4 14:20	72.1	↓-0.2
10/4 14:30	71.9	↓-0.2
10/4 14:40	71.6	↓-0.3
10/4 14:50	71.4	↓-0.2
10/4 15:00	71.2	↓-0.2
10/4 15:10	71.0	↓-0.2
10/4 15:20	70.9	↓-0.1
10/4 15:30	70.7	↓-0.2
10/4 15:40	70.6	↓-0.1
10/4 15:50	70.5	↓-0.1
10/4 16:00	70.5	0
10/4 16:10	70.4	↓-0.1	干潮
10/4 16:20	70.5	↑0.1
10/4 16:30	70.5	0
10/4 16:40	70.6	↑0.1
10/4 16:50	70.6	0
10/4 17:00	70.7	↑0.1
10/4 17:10	70.8	↑0.1
10/4 17:20	71.0	↑0.2
10/4 17:30	71.1	↑0.1
10/4 17:40	71.3	↑0.2
10/4 17:50	71.4	↑0.1
10/4 18:00	71.6	↑0.2
10/4 18:10	71.7	↑0.1
10/4 18:20	71.9	↑0.2
10/4 18:30	72.1	↑0.2
10/4 18:40	72.3	↑0.2
10/4 18:50	72.6	↑0.3
10/4 19:00	72.8	↑0.2
10/4 19:10	73.1	↑0.3
10/4 19:20	73.5	↑0.4
10/4 19:30	73.8	↑0.3
10/4 19:40	74.3	↑0.5
10/4 19:50	74.7	↑0.4
10/4 20:00	75.2	↑0.5
10/4 20:10	75.8	↑0.6
10/4 20:20	76.3	↑0.5
10/4 20:30	76.9	↑0.6
10/4 20:40	77.5	↑0.6
10/4 20:50	78.2	↑0.7
10/4 21:00	78.8	↑0.6
10/4 21:10	79.4	↑0.6
10/4 21:20	80.0	↑0.6
10/4 21:30	80.6	↑0.6
10/4 21:40	81.1	↑0.5
10/4 21:50	81.6	↑0.5
10/4 22:00	82.0	↑0.4
10/4 22:10	82.3	↑0.3
10/4 22:20	82.5	↑0.2
10/4 22:30	82.6	↑0.1	満潮
10/4 22:40	82.7	↑0.1
10/4 22:50	82.6	↓-0.1
10/4 23:00	82.4	↓-0.2
10/4 23:10	82.1	↓-0.3
10/4 23:20	81.7	↓-0.4
10/4 23:30	81.2	↓-0.5
10/4 23:40	80.6	↓-0.6
10/4 23:50	79.9	↓-0.7