18 (日)	09:44	03:23	21:48	15:04
	72cm	40cm	89cm	48cm
小潮 出 04:20 入 19:09 出 12:50 入 23:43

函館（北海道）2021年07月18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
7/18 00:00	64.3	↓-1.9	最大潮位差
7/18 00:10	62.4	↓-1.9	最大潮位差
7/18 00:20	60.5	↓-1.9	最大潮位差
7/18 00:30	58.6	↓-1.9	最大潮位差
7/18 00:40	56.7	↓-1.9	最大潮位差
7/18 00:50	54.9	↓-1.8
7/18 01:00	53.1	↓-1.8
7/18 01:10	51.4	↓-1.7
7/18 01:20	49.7	↓-1.7
7/18 01:30	48.2	↓-1.5
7/18 01:40	46.7	↓-1.5
7/18 01:50	45.3	↓-1.4
7/18 02:00	44.1	↓-1.2
7/18 02:10	43.0	↓-1.1
7/18 02:20	42.0	↓-1.0
7/18 02:30	41.2	↓-0.8
7/18 02:40	40.5	↓-0.7
7/18 02:50	40.0	↓-0.5
7/18 03:00	39.6	↓-0.4
7/18 03:10	39.3	↓-0.3
7/18 03:20	39.2	↓-0.1	干潮
7/18 03:30	39.3	↑0.1
7/18 03:40	39.5	↑0.2
7/18 03:50	39.8	↑0.3
7/18 04:00	40.2	↑0.4
7/18 04:10	40.7	↑0.5
7/18 04:20	41.3	↑0.6
7/18 04:30	42.0	↑0.7
7/18 04:40	42.8	↑0.8
7/18 04:50	43.6	↑0.8
7/18 05:00	44.6	↑1.0
7/18 05:10	45.5	↑0.9
7/18 05:20	46.6	↑1.1
7/18 05:30	47.6	↑1.0
7/18 05:40	48.7	↑1.1
7/18 05:50	49.9	↑1.2
7/18 06:00	51.0	↑1.1
7/18 06:10	52.2	↑1.2
7/18 06:20	53.5	↑1.3
7/18 06:30	54.7	↑1.2
7/18 06:40	55.9	↑1.2
7/18 06:50	57.2	↑1.3
7/18 07:00	58.4	↑1.2
7/18 07:10	59.7	↑1.3
7/18 07:20	60.9	↑1.2
7/18 07:30	62.1	↑1.2
7/18 07:40	63.2	↑1.1
7/18 07:50	64.4	↑1.2
7/18 08:00	65.4	↑1.0
7/18 08:10	66.4	↑1.0
7/18 08:20	67.4	↑1.0
7/18 08:30	68.2	↑0.8
7/18 08:40	69.0	↑0.8
7/18 08:50	69.7	↑0.7
7/18 09:00	70.2	↑0.5
7/18 09:10	70.7	↑0.5
7/18 09:20	71.0	↑0.3
7/18 09:30	71.2	↑0.2
7/18 09:40	71.3	↑0.1	満潮
7/18 09:50	71.3	0
7/18 10:00	71.1	↓-0.2
7/18 10:10	70.9	↓-0.2
7/18 10:20	70.5	↓-0.4
7/18 10:30	70.1	↓-0.4
7/18 10:40	69.5	↓-0.6
7/18 10:50	68.8	↓-0.7
7/18 11:00	68.1	↓-0.7
7/18 11:10	67.3	↓-0.8
7/18 11:20	66.4	↓-0.9
7/18 11:30	65.4	↓-1.0
7/18 11:40	64.5	↓-0.9
7/18 11:50	63.4	↓-1.1
7/18 12:00	62.3	↓-1.1
7/18 12:10	61.2	↓-1.1
7/18 12:20	60.1	↓-1.1
7/18 12:30	59.0	↓-1.1
7/18 12:40	57.9	↓-1.1
7/18 12:50	56.7	↓-1.2
7/18 13:00	55.6	↓-1.1
7/18 13:10	54.6	↓-1.0
7/18 13:20	53.5	↓-1.1
7/18 13:30	52.6	↓-0.9
7/18 13:40	51.7	↓-0.9
7/18 13:50	50.8	↓-0.9
7/18 14:00	50.1	↓-0.7
7/18 14:10	49.4	↓-0.7
7/18 14:20	48.8	↓-0.6
7/18 14:30	48.4	↓-0.4
7/18 14:40	48.0	↓-0.4
7/18 14:50	47.8	↓-0.2
7/18 15:00	47.7	↓-0.1	干潮
7/18 15:10	47.7	0
7/18 15:20	47.9	↑0.2
7/18 15:30	48.2	↑0.3
7/18 15:40	48.6	↑0.4
7/18 15:50	49.1	↑0.5
7/18 16:00	49.7	↑0.6
7/18 16:10	50.5	↑0.8
7/18 16:20	51.3	↑0.8
7/18 16:30	52.3	↑1.0
7/18 16:40	53.3	↑1.0
7/18 16:50	54.4	↑1.1
7/18 17:00	55.5	↑1.1
7/18 17:10	56.8	↑1.3
7/18 17:20	58.0	↑1.2
7/18 17:30	59.4	↑1.4
7/18 17:40	60.7	↑1.3
7/18 17:50	62.1	↑1.4
7/18 18:00	63.5	↑1.4
7/18 18:10	64.9	↑1.4
7/18 18:20	66.4	↑1.5
7/18 18:30	67.9	↑1.5
7/18 18:40	69.3	↑1.4
7/18 18:50	70.8	↑1.5
7/18 19:00	72.3	↑1.5
7/18 19:10	73.8	↑1.5
7/18 19:20	75.2	↑1.4
7/18 19:30	76.7	↑1.5
7/18 19:40	78.1	↑1.4
7/18 19:50	79.4	↑1.3
7/18 20:00	80.7	↑1.3
7/18 20:10	82.0	↑1.3
7/18 20:20	83.2	↑1.2
7/18 20:30	84.3	↑1.1
7/18 20:40	85.2	↑0.9
7/18 20:50	86.1	↑0.9
7/18 21:00	86.9	↑0.8
7/18 21:10	87.5	↑0.6
7/18 21:20	88.0	↑0.5
7/18 21:30	88.3	↑0.3
7/18 21:40	88.5	↑0.2	満潮
7/18 21:50	88.6	↑0.1
7/18 22:00	88.4	↓-0.2
7/18 22:10	88.1	↓-0.3
7/18 22:20	87.7	↓-0.4
7/18 22:30	87.1	↓-0.6
7/18 22:40	86.3	↓-0.8
7/18 22:50	85.4	↓-0.9
7/18 23:00	84.4	↓-1.0
7/18 23:10	83.2	↓-1.2
7/18 23:20	81.9	↓-1.3
7/18 23:30	80.5	↓-1.4
7/18 23:40	78.9	↓-1.6
7/18 23:50	77.3	↓-1.6