18 (水)	08:29	01:36	19:17	13:36
	76cm	12cm	81cm	51cm
小潮 出 06:59 入 16:10 出 22:43 入 11:31

函館（北海道）2019年12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
12/18 00:00	21.4	↓-2.0
12/18 00:10	19.5	↓-1.9
12/18 00:20	17.8	↓-1.7
12/18 00:30	16.3	↓-1.5
12/18 00:40	14.9	↓-1.4
12/18 00:50	13.8	↓-1.1
12/18 01:00	12.9	↓-0.9
12/18 01:10	12.3	↓-0.6
12/18 01:20	11.8	↓-0.5
12/18 01:30	11.6	↓-0.2	干潮
12/18 01:40	11.6	0
12/18 01:50	11.8	↑0.2
12/18 02:00	12.2	↑0.4
12/18 02:10	12.9	↑0.7
12/18 02:20	13.7	↑0.8
12/18 02:30	14.8	↑1.1
12/18 02:40	16.0	↑1.2
12/18 02:50	17.4	↑1.4
12/18 03:00	18.9	↑1.5
12/18 03:10	20.6	↑1.7
12/18 03:20	22.5	↑1.9
12/18 03:30	24.4	↑1.9
12/18 03:40	26.4	↑2.0
12/18 03:50	28.6	↑2.2
12/18 04:00	30.8	↑2.2
12/18 04:10	33.1	↑2.3
12/18 04:20	35.4	↑2.3
12/18 04:30	37.8	↑2.4	最大潮位差
12/18 04:40	40.2	↑2.4	最大潮位差
12/18 04:50	42.6	↑2.4	最大潮位差
12/18 05:00	45.0	↑2.4	最大潮位差
12/18 05:10	47.4	↑2.4	最大潮位差
12/18 05:20	49.8	↑2.4	最大潮位差
12/18 05:30	52.1	↑2.3
12/18 05:40	54.4	↑2.3
12/18 05:50	56.6	↑2.2
12/18 06:00	58.8	↑2.2
12/18 06:10	60.8	↑2.0
12/18 06:20	62.7	↑1.9
12/18 06:30	64.6	↑1.9
12/18 06:40	66.3	↑1.7
12/18 06:50	67.8	↑1.5
12/18 07:00	69.3	↑1.5
12/18 07:10	70.5	↑1.2
12/18 07:20	71.6	↑1.1
12/18 07:30	72.6	↑1.0
12/18 07:40	73.4	↑0.8
12/18 07:50	74.0	↑0.6
12/18 08:00	74.5	↑0.5
12/18 08:10	74.8	↑0.3
12/18 08:20	75.0	↑0.2	満潮
12/18 08:30	75.1	↑0.1
12/18 08:40	75.0	↓-0.1
12/18 08:50	74.7	↓-0.3
12/18 09:00	74.4	↓-0.3
12/18 09:10	73.9	↓-0.5
12/18 09:20	73.4	↓-0.5
12/18 09:30	72.7	↓-0.7
12/18 09:40	72.0	↓-0.7
12/18 09:50	71.1	↓-0.9
12/18 10:00	70.2	↓-0.9
12/18 10:10	69.2	↓-1.0
12/18 10:20	68.2	↓-1.0
12/18 10:30	67.1	↓-1.1
12/18 10:40	66.0	↓-1.1
12/18 10:50	64.8	↓-1.2
12/18 11:00	63.6	↓-1.2
12/18 11:10	62.4	↓-1.2
12/18 11:20	61.2	↓-1.2
12/18 11:30	60.0	↓-1.2
12/18 11:40	58.8	↓-1.2
12/18 11:50	57.7	↓-1.1
12/18 12:00	56.6	↓-1.1
12/18 12:10	55.5	↓-1.1
12/18 12:20	54.6	↓-0.9
12/18 12:30	53.7	↓-0.9
12/18 12:40	52.9	↓-0.8
12/18 12:50	52.3	↓-0.6
12/18 13:00	51.7	↓-0.6
12/18 13:10	51.3	↓-0.4
12/18 13:20	51.0	↓-0.3
12/18 13:30	50.9	↓-0.1	干潮
12/18 13:40	50.9	0
12/18 13:50	51.0	↑0.1
12/18 14:00	51.3	↑0.3
12/18 14:10	51.7	↑0.4
12/18 14:20	52.2	↑0.5
12/18 14:30	52.9	↑0.7
12/18 14:40	53.7	↑0.8
12/18 14:50	54.5	↑0.8
12/18 15:00	55.5	↑1.0
12/18 15:10	56.5	↑1.0
12/18 15:20	57.6	↑1.1
12/18 15:30	58.8	↑1.2
12/18 15:40	60.0	↑1.2
12/18 15:50	61.3	↑1.3
12/18 16:00	62.6	↑1.3
12/18 16:10	63.9	↑1.3
12/18 16:20	65.2	↑1.3
12/18 16:30	66.5	↑1.3
12/18 16:40	67.8	↑1.3
12/18 16:50	69.0	↑1.2
12/18 17:00	70.3	↑1.3
12/18 17:10	71.5	↑1.2
12/18 17:20	72.7	↑1.2
12/18 17:30	73.8	↑1.1
12/18 17:40	74.9	↑1.1
12/18 17:50	75.9	↑1.0
12/18 18:00	76.8	↑0.9
12/18 18:10	77.6	↑0.8
12/18 18:20	78.4	↑0.8
12/18 18:30	79.0	↑0.6
12/18 18:40	79.6	↑0.6
12/18 18:50	80.0	↑0.4
12/18 19:00	80.3	↑0.3
12/18 19:10	80.4	↑0.1	満潮
12/18 19:20	80.4	0
12/18 19:30	80.3	↓-0.1
12/18 19:40	80.0	↓-0.3
12/18 19:50	79.6	↓-0.4
12/18 20:00	79.0	↓-0.6
12/18 20:10	78.3	↓-0.7
12/18 20:20	77.5	↓-0.8
12/18 20:30	76.4	↓-1.1
12/18 20:40	75.3	↓-1.1
12/18 20:50	74.0	↓-1.3
12/18 21:00	72.6	↓-1.4
12/18 21:10	71.1	↓-1.5
12/18 21:20	69.5	↓-1.6
12/18 21:30	67.8	↓-1.7
12/18 21:40	66.0	↓-1.8
12/18 21:50	64.1	↓-1.9
12/18 22:00	62.1	↓-2.0
12/18 22:10	60.1	↓-2.0
12/18 22:20	58.0	↓-2.1
12/18 22:30	55.9	↓-2.1
12/18 22:40	53.7	↓-2.2
12/18 22:50	51.5	↓-2.2
12/18 23:00	49.3	↓-2.2
12/18 23:10	47.1	↓-2.2
12/18 23:20	44.9	↓-2.2
12/18 23:30	42.6	↓-2.3
12/18 23:40	40.4	↓-2.2
12/18 23:50	38.3	↓-2.1