09 (金)	02:39	08:35	14:04	20:53
	71cm	31cm	75cm	13cm
中潮 出 05:08 入 18:12 出 04:15 入 15:14

函館（北海道）2021年04月09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
4/9 00:00	52.4	↑2.2
4/9 00:10	54.5	↑2.1
4/9 00:20	56.5	↑2.0
4/9 00:30	58.4	↑1.9
4/9 00:40	60.1	↑1.7
4/9 00:50	61.8	↑1.7
4/9 01:00	63.3	↑1.5
4/9 01:10	64.6	↑1.3
4/9 01:20	65.8	↑1.2
4/9 01:30	66.9	↑1.1
4/9 01:40	67.8	↑0.9
4/9 01:50	68.6	↑0.8
4/9 02:00	69.3	↑0.7
4/9 02:10	69.7	↑0.4
4/9 02:20	70.1	↑0.4
4/9 02:30	70.3	↑0.2	満潮
4/9 02:40	70.3	0
4/9 02:50	70.2	↓-0.1
4/9 03:00	69.9	↓-0.3
4/9 03:10	69.5	↓-0.4
4/9 03:20	69.0	↓-0.5
4/9 03:30	68.3	↓-0.7
4/9 03:40	67.5	↓-0.8
4/9 03:50	66.6	↓-0.9
4/9 04:00	65.5	↓-1.1
4/9 04:10	64.3	↓-1.2
4/9 04:20	63.1	↓-1.2
4/9 04:30	61.7	↓-1.4
4/9 04:40	60.3	↓-1.4
4/9 04:50	58.7	↓-1.6
4/9 05:00	57.2	↓-1.5
4/9 05:10	55.5	↓-1.7
4/9 05:20	53.9	↓-1.6
4/9 05:30	52.2	↓-1.7
4/9 05:40	50.5	↓-1.7
4/9 05:50	48.8	↓-1.7
4/9 06:00	47.1	↓-1.7
4/9 06:10	45.4	↓-1.7
4/9 06:20	43.8	↓-1.6
4/9 06:30	42.2	↓-1.6
4/9 06:40	40.7	↓-1.5
4/9 06:50	39.2	↓-1.5
4/9 07:00	37.8	↓-1.4
4/9 07:10	36.5	↓-1.3
4/9 07:20	35.3	↓-1.2
4/9 07:30	34.3	↓-1.0
4/9 07:40	33.3	↓-1.0
4/9 07:50	32.5	↓-0.8
4/9 08:00	31.8	↓-0.7
4/9 08:10	31.3	↓-0.5
4/9 08:20	31.0	↓-0.3
4/9 08:30	30.8	↓-0.2	干潮
4/9 08:40	30.8	0
4/9 08:50	31.1	↑0.3
4/9 09:00	31.5	↑0.4
4/9 09:10	32.1	↑0.6
4/9 09:20	32.9	↑0.8
4/9 09:30	33.9	↑1.0
4/9 09:40	35.0	↑1.1
4/9 09:50	36.4	↑1.4
4/9 10:00	37.9	↑1.5
4/9 10:10	39.6	↑1.7
4/9 10:20	41.4	↑1.8
4/9 10:30	43.3	↑1.9
4/9 10:40	45.3	↑2.0
4/9 10:50	47.4	↑2.1
4/9 11:00	49.5	↑2.1
4/9 11:10	51.6	↑2.1
4/9 11:20	53.8	↑2.2
4/9 11:30	55.9	↑2.1
4/9 11:40	58.0	↑2.1
4/9 11:50	60.0	↑2.0
4/9 12:00	62.0	↑2.0
4/9 12:10	63.8	↑1.8
4/9 12:20	65.5	↑1.7
4/9 12:30	67.1	↑1.6
4/9 12:40	68.6	↑1.5
4/9 12:50	69.9	↑1.3
4/9 13:00	71.0	↑1.1
4/9 13:10	72.0	↑1.0
4/9 13:20	72.8	↑0.8
4/9 13:30	73.5	↑0.7
4/9 13:40	73.9	↑0.4
4/9 13:50	74.2	↑0.3
4/9 14:00	74.4	↑0.2	満潮
4/9 14:10	74.4	0
4/9 14:20	74.2	↓-0.2
4/9 14:30	73.8	↓-0.4
4/9 14:40	73.3	↓-0.5
4/9 14:50	72.6	↓-0.7
4/9 15:00	71.8	↓-0.8
4/9 15:10	70.8	↓-1.0
4/9 15:20	69.7	↓-1.1
4/9 15:30	68.4	↓-1.3
4/9 15:40	67.0	↓-1.4
4/9 15:50	65.5	↓-1.5
4/9 16:00	63.8	↓-1.7
4/9 16:10	62.1	↓-1.7
4/9 16:20	60.2	↓-1.9
4/9 16:30	58.2	↓-2.0
4/9 16:40	56.1	↓-2.1
4/9 16:50	54.0	↓-2.1
4/9 17:00	51.8	↓-2.2
4/9 17:10	49.5	↓-2.3
4/9 17:20	47.2	↓-2.3
4/9 17:30	44.9	↓-2.3
4/9 17:40	42.5	↓-2.4
4/9 17:50	40.2	↓-2.3
4/9 18:00	37.8	↓-2.4
4/9 18:10	35.5	↓-2.3
4/9 18:20	33.3	↓-2.2
4/9 18:30	31.1	↓-2.2
4/9 18:40	28.9	↓-2.2
4/9 18:50	26.9	↓-2.0
4/9 19:00	24.9	↓-2.0
4/9 19:10	23.0	↓-1.9
4/9 19:20	21.3	↓-1.7
4/9 19:30	19.6	↓-1.7
4/9 19:40	18.2	↓-1.4
4/9 19:50	16.8	↓-1.4
4/9 20:00	15.7	↓-1.1
4/9 20:10	14.7	↓-1.0
4/9 20:20	13.9	↓-0.8
4/9 20:30	13.3	↓-0.6
4/9 20:40	12.9	↓-0.4
4/9 20:50	12.8	↓-0.1	干潮
4/9 21:00	12.8	0
4/9 21:10	13.1	↑0.3
4/9 21:20	13.7	↑0.6
4/9 21:30	14.4	↑0.7
4/9 21:40	15.4	↑1.0
4/9 21:50	16.6	↑1.2
4/9 22:00	18.1	↑1.5
4/9 22:10	19.7	↑1.6
4/9 22:20	21.6	↑1.9
4/9 22:30	23.7	↑2.1
4/9 22:40	25.9	↑2.2
4/9 22:50	28.2	↑2.3
4/9 23:00	30.7	↑2.5
4/9 23:10	33.3	↑2.6
4/9 23:20	36.0	↑2.7
4/9 23:30	38.7	↑2.7
4/9 23:40	41.5	↑2.8	最大潮位差
4/9 23:50	44.2	↑2.7