31 (火)	07:25	00:38	18:13	12:46
	80cm	14cm	86cm	50cm
中潮 出 07:04 入 16:18 出 10:27 入 21:09

函館（北海道）2019年12月31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
12/31 00:00	14.8	↓-1.0
12/31 00:10	14.0	↓-0.8
12/31 00:20	13.5	↓-0.5
12/31 00:30	13.2	↓-0.3	干潮
12/31 00:40	13.1	↓-0.1
12/31 00:50	13.3	↑0.2
12/31 01:00	13.7	↑0.4
12/31 01:10	14.3	↑0.6
12/31 01:20	15.2	↑0.9
12/31 01:30	16.2	↑1.0
12/31 01:40	17.5	↑1.3
12/31 01:50	18.9	↑1.4
12/31 02:00	20.5	↑1.6
12/31 02:10	22.3	↑1.8
12/31 02:20	24.3	↑2.0
12/31 02:30	26.4	↑2.1
12/31 02:40	28.6	↑2.2
12/31 02:50	30.9	↑2.3
12/31 03:00	33.3	↑2.4
12/31 03:10	35.8	↑2.5
12/31 03:20	38.4	↑2.6
12/31 03:30	41.0	↑2.6
12/31 03:40	43.6	↑2.6
12/31 03:50	46.3	↑2.7	最大潮位差
12/31 04:00	49.0	↑2.7	最大潮位差
12/31 04:10	51.6	↑2.6
12/31 04:20	54.2	↑2.6
12/31 04:30	56.7	↑2.5
12/31 04:40	59.2	↑2.5
12/31 04:50	61.5	↑2.3
12/31 05:00	63.8	↑2.3
12/31 05:10	65.9	↑2.1
12/31 05:20	68.0	↑2.1
12/31 05:30	69.8	↑1.8
12/31 05:40	71.5	↑1.7
12/31 05:50	73.1	↑1.6
12/31 06:00	74.5	↑1.4
12/31 06:10	75.7	↑1.2
12/31 06:20	76.8	↑1.1
12/31 06:30	77.7	↑0.9
12/31 06:40	78.4	↑0.7
12/31 06:50	79.0	↑0.6
12/31 07:00	79.4	↑0.4
12/31 07:10	79.7	↑0.3
12/31 07:20	79.8	↑0.1	満潮
12/31 07:30	79.8	0
12/31 07:40	79.6	↓-0.2
12/31 07:50	79.4	↓-0.2
12/31 08:00	79.0	↓-0.4
12/31 08:10	78.4	↓-0.6
12/31 08:20	77.8	↓-0.6
12/31 08:30	77.0	↓-0.8
12/31 08:40	76.2	↓-0.8
12/31 08:50	75.2	↓-1.0
12/31 09:00	74.2	↓-1.0
12/31 09:10	73.0	↓-1.2
12/31 09:20	71.8	↓-1.2
12/31 09:30	70.5	↓-1.3
12/31 09:40	69.2	↓-1.3
12/31 09:50	67.8	↓-1.4
12/31 10:00	66.3	↓-1.5
12/31 10:10	64.8	↓-1.5
12/31 10:20	63.3	↓-1.5
12/31 10:30	61.8	↓-1.5
12/31 10:40	60.3	↓-1.5
12/31 10:50	58.8	↓-1.5
12/31 11:00	57.4	↓-1.4
12/31 11:10	56.1	↓-1.3
12/31 11:20	54.8	↓-1.3
12/31 11:30	53.6	↓-1.2
12/31 11:40	52.6	↓-1.0
12/31 11:50	51.6	↓-1.0
12/31 12:00	50.8	↓-0.8
12/31 12:10	50.2	↓-0.6
12/31 12:20	49.7	↓-0.5
12/31 12:30	49.4	↓-0.3
12/31 12:40	49.2	↓-0.2	干潮
12/31 12:50	49.2	0
12/31 13:00	49.4	↑0.2
12/31 13:10	49.7	↑0.3
12/31 13:20	50.2	↑0.5
12/31 13:30	50.8	↑0.6
12/31 13:40	51.6	↑0.8
12/31 13:50	52.6	↑1.0
12/31 14:00	53.6	↑1.0
12/31 14:10	54.8	↑1.2
12/31 14:20	56.1	↑1.3
12/31 14:30	57.5	↑1.4
12/31 14:40	58.9	↑1.4
12/31 14:50	60.5	↑1.6
12/31 15:00	62.1	↑1.6
12/31 15:10	63.7	↑1.6
12/31 15:20	65.4	↑1.7
12/31 15:30	67.1	↑1.7
12/31 15:40	68.8	↑1.7
12/31 15:50	70.5	↑1.7
12/31 16:00	72.2	↑1.7
12/31 16:10	73.8	↑1.6
12/31 16:20	75.4	↑1.6
12/31 16:30	76.9	↑1.5
12/31 16:40	78.4	↑1.5
12/31 16:50	79.7	↑1.3
12/31 17:00	80.9	↑1.2
12/31 17:10	82.0	↑1.1
12/31 17:20	83.0	↑1.0
12/31 17:30	83.8	↑0.8
12/31 17:40	84.4	↑0.6
12/31 17:50	84.9	↑0.5
12/31 18:00	85.2	↑0.3
12/31 18:10	85.3	↑0.1	満潮
12/31 18:20	85.3	0
12/31 18:30	85.0	↓-0.3
12/31 18:40	84.6	↓-0.4
12/31 18:50	84.0	↓-0.6
12/31 19:00	83.2	↓-0.8
12/31 19:10	82.3	↓-0.9
12/31 19:20	81.2	↓-1.1
12/31 19:30	79.9	↓-1.3
12/31 19:40	78.5	↓-1.4
12/31 19:50	77.0	↓-1.5
12/31 20:00	75.3	↓-1.7
12/31 20:10	73.5	↓-1.8
12/31 20:20	71.7	↓-1.8
12/31 20:30	69.7	↓-2.0
12/31 20:40	67.6	↓-2.1
12/31 20:50	65.4	↓-2.2
12/31 21:00	63.2	↓-2.2
12/31 21:10	60.9	↓-2.3
12/31 21:20	58.6	↓-2.3
12/31 21:30	56.2	↓-2.4
12/31 21:40	53.7	↓-2.5
12/31 21:50	51.3	↓-2.4
12/31 22:00	48.8	↓-2.5
12/31 22:10	46.3	↓-2.5
12/31 22:20	43.8	↓-2.5
12/31 22:30	41.4	↓-2.4
12/31 22:40	39.0	↓-2.4
12/31 22:50	36.6	↓-2.4
12/31 23:00	34.3	↓-2.3
12/31 23:10	32.1	↓-2.2
12/31 23:20	30.0	↓-2.1
12/31 23:30	28.0	↓-2.0
12/31 23:40	26.2	↓-1.8
12/31 23:50	24.5	↓-1.7