20 (日)	11:46	05:42	23:44	17:19
	67cm	36cm	83cm	43cm
若潮 出 04:04 入 19:16 出 13:50 入 00:46

函館（北海道）2021年06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
6/20 00:00	73.9	↓-0.9
6/20 00:10	73.0	↓-0.9
6/20 00:20	71.9	↓-1.1
6/20 00:30	70.7	↓-1.2
6/20 00:40	69.5	↓-1.2
6/20 00:50	68.1	↓-1.4
6/20 01:00	66.7	↓-1.4
6/20 01:10	65.3	↓-1.4
6/20 01:20	63.7	↓-1.6
6/20 01:30	62.2	↓-1.5
6/20 01:40	60.6	↓-1.6
6/20 01:50	58.9	↓-1.7	最大潮位差
6/20 02:00	57.3	↓-1.6
6/20 02:10	55.7	↓-1.6
6/20 02:20	54.0	↓-1.7	最大潮位差
6/20 02:30	52.4	↓-1.6
6/20 02:40	50.9	↓-1.5
6/20 02:50	49.3	↓-1.6
6/20 03:00	47.8	↓-1.5
6/20 03:10	46.4	↓-1.4
6/20 03:20	45.1	↓-1.3
6/20 03:30	43.8	↓-1.3
6/20 03:40	42.6	↓-1.2
6/20 03:50	41.5	↓-1.1
6/20 04:00	40.5	↓-1.0
6/20 04:10	39.6	↓-0.9
6/20 04:20	38.8	↓-0.8
6/20 04:30	38.1	↓-0.7
6/20 04:40	37.5	↓-0.6
6/20 04:50	36.9	↓-0.6
6/20 05:00	36.5	↓-0.4
6/20 05:10	36.2	↓-0.3
6/20 05:20	36.0	↓-0.2
6/20 05:30	35.9	↓-0.1
6/20 05:40	35.8	↓-0.1	干潮
6/20 05:50	35.9	↑0.1
6/20 06:00	36.0	↑0.1
6/20 06:10	36.2	↑0.2
6/20 06:20	36.5	↑0.3
6/20 06:30	36.8	↑0.3
6/20 06:40	37.3	↑0.5
6/20 06:50	37.8	↑0.5
6/20 07:00	38.4	↑0.6
6/20 07:10	39.1	↑0.7
6/20 07:20	39.9	↑0.8
6/20 07:30	40.7	↑0.8
6/20 07:40	41.7	↑1.0
6/20 07:50	42.7	↑1.0
6/20 08:00	43.8	↑1.1
6/20 08:10	44.9	↑1.1
6/20 08:20	46.2	↑1.3
6/20 08:30	47.5	↑1.3
6/20 08:40	48.8	↑1.3
6/20 08:50	50.2	↑1.4
6/20 09:00	51.6	↑1.4
6/20 09:10	53.0	↑1.4
6/20 09:20	54.4	↑1.4
6/20 09:30	55.8	↑1.4
6/20 09:40	57.1	↑1.3
6/20 09:50	58.4	↑1.3
6/20 10:00	59.6	↑1.2
6/20 10:10	60.8	↑1.2
6/20 10:20	61.9	↑1.1
6/20 10:30	62.8	↑0.9
6/20 10:40	63.7	↑0.9
6/20 10:50	64.4	↑0.7
6/20 11:00	65.0	↑0.6
6/20 11:10	65.5	↑0.5
6/20 11:20	65.9	↑0.4
6/20 11:30	66.2	↑0.3
6/20 11:40	66.3	↑0.1	満潮
6/20 11:50	66.3	0
6/20 12:00	66.2	↓-0.1
6/20 12:10	65.9	↓-0.3
6/20 12:20	65.6	↓-0.3
6/20 12:30	65.1	↓-0.5
6/20 12:40	64.6	↓-0.5
6/20 12:50	64.0	↓-0.6
6/20 13:00	63.3	↓-0.7
6/20 13:10	62.5	↓-0.8
6/20 13:20	61.6	↓-0.9
6/20 13:30	60.7	↓-0.9
6/20 13:40	59.8	↓-0.9
6/20 13:50	58.8	↓-1.0
6/20 14:00	57.7	↓-1.1
6/20 14:10	56.7	↓-1.0
6/20 14:20	55.6	↓-1.1
6/20 14:30	54.5	↓-1.1
6/20 14:40	53.4	↓-1.1
6/20 14:50	52.3	↓-1.1
6/20 15:00	51.3	↓-1.0
6/20 15:10	50.2	↓-1.1
6/20 15:20	49.2	↓-1.0
6/20 15:30	48.3	↓-0.9
6/20 15:40	47.4	↓-0.9
6/20 15:50	46.6	↓-0.8
6/20 16:00	45.8	↓-0.8
6/20 16:10	45.1	↓-0.7
6/20 16:20	44.6	↓-0.5
6/20 16:30	44.1	↓-0.5
6/20 16:40	43.6	↓-0.5
6/20 16:50	43.3	↓-0.3
6/20 17:00	43.1	↓-0.2
6/20 17:10	43.0	↓-0.1	干潮
6/20 17:20	42.9	↓-0.1
6/20 17:30	43.0	↑0.1
6/20 17:40	43.2	↑0.2
6/20 17:50	43.4	↑0.2
6/20 18:00	43.7	↑0.3
6/20 18:10	44.2	↑0.5
6/20 18:20	44.7	↑0.5
6/20 18:30	45.3	↑0.6
6/20 18:40	45.9	↑0.6
6/20 18:50	46.7	↑0.8
6/20 19:00	47.6	↑0.9
6/20 19:10	48.5	↑0.9
6/20 19:20	49.5	↑1.0
6/20 19:30	50.6	↑1.1
6/20 19:40	51.8	↑1.2
6/20 19:50	53.1	↑1.3
6/20 20:00	54.5	↑1.4
6/20 20:10	55.9	↑1.4
6/20 20:20	57.4	↑1.5
6/20 20:30	59.0	↑1.6
6/20 20:40	60.6	↑1.6
6/20 20:50	62.3	↑1.7	最大潮位差
6/20 21:00	64.0	↑1.7	最大潮位差
6/20 21:10	65.7	↑1.7	最大潮位差
6/20 21:20	67.4	↑1.7	最大潮位差
6/20 21:30	69.1	↑1.7	最大潮位差
6/20 21:40	70.8	↑1.7	最大潮位差
6/20 21:50	72.4	↑1.6
6/20 22:00	74.0	↑1.6
6/20 22:10	75.4	↑1.4
6/20 22:20	76.8	↑1.4
6/20 22:30	78.1	↑1.3
6/20 22:40	79.2	↑1.1
6/20 22:50	80.2	↑1.0
6/20 23:00	81.0	↑0.8
6/20 23:10	81.7	↑0.7
6/20 23:20	82.1	↑0.4
6/20 23:30	82.5	↑0.4
6/20 23:40	82.6	↑0.1	満潮
6/20 23:50	82.6	0