20 (月)	11:37	04:29	22:06	15:14
	73cm	43cm	92cm	67cm
長潮 出 04:51 入 18:32 出 14:09 入 00:00

函館（北海道）2018年08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
8/20 00:00	75.0	↓-1.7
8/20 00:10	73.1	↓-1.9	最大潮位差
8/20 00:20	71.3	↓-1.8
8/20 00:30	69.4	↓-1.9	最大潮位差
8/20 00:40	67.5	↓-1.9	最大潮位差
8/20 00:50	65.6	↓-1.9	最大潮位差
8/20 01:00	63.8	↓-1.8
8/20 01:10	61.9	↓-1.9	最大潮位差
8/20 01:20	60.1	↓-1.8
8/20 01:30	58.3	↓-1.8
8/20 01:40	56.6	↓-1.7
8/20 01:50	54.9	↓-1.7
8/20 02:00	53.3	↓-1.6
8/20 02:10	51.8	↓-1.5
8/20 02:20	50.4	↓-1.4
8/20 02:30	49.1	↓-1.3
8/20 02:40	47.9	↓-1.2
8/20 02:50	46.9	↓-1.0
8/20 03:00	45.9	↓-1.0
8/20 03:10	45.0	↓-0.9
8/20 03:20	44.3	↓-0.7
8/20 03:30	43.7	↓-0.6
8/20 03:40	43.2	↓-0.5
8/20 03:50	42.8	↓-0.4
8/20 04:00	42.5	↓-0.3
8/20 04:10	42.3	↓-0.2
8/20 04:20	42.2	↓-0.1	干潮
8/20 04:30	42.1	↓-0.1
8/20 04:40	42.2	↑0.1
8/20 04:50	42.3	↑0.1
8/20 05:00	42.5	↑0.2
8/20 05:10	42.8	↑0.3
8/20 05:20	43.1	↑0.3
8/20 05:30	43.5	↑0.4
8/20 05:40	44.0	↑0.5
8/20 05:50	44.5	↑0.5
8/20 06:00	45.1	↑0.6
8/20 06:10	45.8	↑0.7
8/20 06:20	46.5	↑0.7
8/20 06:30	47.3	↑0.8
8/20 06:40	48.2	↑0.9
8/20 06:50	49.1	↑0.9
8/20 07:00	50.0	↑0.9
8/20 07:10	51.1	↑1.1
8/20 07:20	52.2	↑1.1
8/20 07:30	53.3	↑1.1
8/20 07:40	54.5	↑1.2
8/20 07:50	55.7	↑1.2
8/20 08:00	56.9	↑1.2
8/20 08:10	58.1	↑1.2
8/20 08:20	59.3	↑1.2
8/20 08:30	60.5	↑1.2
8/20 08:40	61.7	↑1.2
8/20 08:50	62.8	↑1.1
8/20 09:00	63.9	↑1.1
8/20 09:10	65.0	↑1.1
8/20 09:20	66.0	↑1.0
8/20 09:30	66.9	↑0.9
8/20 09:40	67.7	↑0.8
8/20 09:50	68.5	↑0.8
8/20 10:00	69.2	↑0.7
8/20 10:10	69.9	↑0.7
8/20 10:20	70.4	↑0.5
8/20 10:30	70.9	↑0.5
8/20 10:40	71.3	↑0.4
8/20 10:50	71.6	↑0.3
8/20 11:00	71.9	↑0.3
8/20 11:10	72.1	↑0.2
8/20 11:20	72.2	↑0.1
8/20 11:30	72.3	↑0.1	満潮
8/20 11:40	72.3	0
8/20 11:50	72.2	↓-0.1
8/20 12:00	72.1	↓-0.1
8/20 12:10	72.0	↓-0.1
8/20 12:20	71.8	↓-0.2
8/20 12:30	71.5	↓-0.3
8/20 12:40	71.3	↓-0.2
8/20 12:50	71.0	↓-0.3
8/20 13:00	70.6	↓-0.4
8/20 13:10	70.3	↓-0.3
8/20 13:20	69.9	↓-0.4
8/20 13:30	69.5	↓-0.4
8/20 13:40	69.1	↓-0.4
8/20 13:50	68.8	↓-0.3
8/20 14:00	68.4	↓-0.4
8/20 14:10	68.1	↓-0.3
8/20 14:20	67.8	↓-0.3
8/20 14:30	67.5	↓-0.3
8/20 14:40	67.3	↓-0.2
8/20 14:50	67.1	↓-0.2
8/20 15:00	67.0	↓-0.1
8/20 15:10	67.0	0	干潮
8/20 15:20	67.0	0
8/20 15:30	67.1	↑0.1
8/20 15:40	67.2	↑0.1
8/20 15:50	67.4	↑0.2
8/20 16:00	67.7	↑0.3
8/20 16:10	68.0	↑0.3
8/20 16:20	68.4	↑0.4
8/20 16:30	68.8	↑0.4
8/20 16:40	69.2	↑0.4
8/20 16:50	69.7	↑0.5
8/20 17:00	70.3	↑0.6
8/20 17:10	70.8	↑0.5
8/20 17:20	71.4	↑0.6
8/20 17:30	72.0	↑0.6
8/20 17:40	72.6	↑0.6
8/20 17:50	73.3	↑0.7
8/20 18:00	74.0	↑0.7
8/20 18:10	74.7	↑0.7
8/20 18:20	75.4	↑0.7
8/20 18:30	76.2	↑0.8
8/20 18:40	76.9	↑0.7
8/20 18:50	77.8	↑0.9
8/20 19:00	78.6	↑0.8
8/20 19:10	79.4	↑0.8
8/20 19:20	80.3	↑0.9
8/20 19:30	81.2	↑0.9
8/20 19:40	82.2	↑1.0
8/20 19:50	83.1	↑0.9
8/20 20:00	84.0	↑0.9
8/20 20:10	84.9	↑0.9
8/20 20:20	85.8	↑0.9
8/20 20:30	86.7	↑0.9
8/20 20:40	87.5	↑0.8
8/20 20:50	88.3	↑0.8
8/20 21:00	89.0	↑0.7
8/20 21:10	89.6	↑0.6
8/20 21:20	90.2	↑0.6
8/20 21:30	90.7	↑0.5
8/20 21:40	91.0	↑0.3
8/20 21:50	91.2	↑0.2
8/20 22:00	91.4	↑0.2	満潮
8/20 22:10	91.4	0
8/20 22:20	91.3	↓-0.1
8/20 22:30	91.0	↓-0.3
8/20 22:40	90.7	↓-0.3
8/20 22:50	90.2	↓-0.5
8/20 23:00	89.6	↓-0.6
8/20 23:10	88.9	↓-0.7
8/20 23:20	88.1	↓-0.8
8/20 23:30	87.2	↓-0.9
8/20 23:40	86.2	↓-1.0
8/20 23:50	85.1	↓-1.1