31 (日)	06:56	00:14	17:38	12:09
	80cm	10cm	89cm	51cm
中潮 出 07:04 入 16:18 出 20:19 入 09:57

函館（北海道）2023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	9.7	↓-0.5
12/31 00:10	9.5	↓-0.2	干潮
12/31 00:20	9.5	0
12/31 00:30	9.8	↑0.3
12/31 00:40	10.4	↑0.6
12/31 00:50	11.1	↑0.7
12/31 01:00	12.1	↑1.0
12/31 01:10	13.4	↑1.3
12/31 01:20	14.8	↑1.4
12/31 01:30	16.5	↑1.7
12/31 01:40	18.3	↑1.8
12/31 01:50	20.3	↑2.0
12/31 02:00	22.5	↑2.2
12/31 02:10	24.8	↑2.3
12/31 02:20	27.3	↑2.5
12/31 02:30	29.9	↑2.6
12/31 02:40	32.5	↑2.6
12/31 02:50	35.3	↑2.8
12/31 03:00	38.1	↑2.8
12/31 03:10	40.9	↑2.8
12/31 03:20	43.8	↑2.9	最大潮位差
12/31 03:30	46.6	↑2.8
12/31 03:40	49.4	↑2.8
12/31 03:50	52.2	↑2.8
12/31 04:00	54.9	↑2.7
12/31 04:10	57.6	↑2.7
12/31 04:20	60.1	↑2.5
12/31 04:30	62.5	↑2.4
12/31 04:40	64.8	↑2.3
12/31 04:50	66.9	↑2.1
12/31 05:00	68.8	↑1.9
12/31 05:10	70.7	↑1.9
12/31 05:20	72.3	↑1.6
12/31 05:30	73.8	↑1.5
12/31 05:40	75.0	↑1.2
12/31 05:50	76.2	↑1.2
12/31 06:00	77.1	↑0.9
12/31 06:10	77.9	↑0.8
12/31 06:20	78.5	↑0.6
12/31 06:30	78.9	↑0.4
12/31 06:40	79.2	↑0.3
12/31 06:50	79.4	↑0.2	満潮
12/31 07:00	79.4	0
12/31 07:10	79.3	↓-0.1
12/31 07:20	79.0	↓-0.3
12/31 07:30	78.6	↓-0.4
12/31 07:40	78.1	↓-0.5
12/31 07:50	77.5	↓-0.6
12/31 08:00	76.7	↓-0.8
12/31 08:10	75.9	↓-0.8
12/31 08:20	75.0	↓-0.9
12/31 08:30	73.9	↓-1.1
12/31 08:40	72.8	↓-1.1
12/31 08:50	71.6	↓-1.2
12/31 09:00	70.4	↓-1.2
12/31 09:10	69.1	↓-1.3
12/31 09:20	67.7	↓-1.4
12/31 09:30	66.3	↓-1.4
12/31 09:40	64.9	↓-1.4
12/31 09:50	63.4	↓-1.5
12/31 10:00	62.0	↓-1.4
12/31 10:10	60.6	↓-1.4
12/31 10:20	59.2	↓-1.4
12/31 10:30	57.9	↓-1.3
12/31 10:40	56.7	↓-1.2
12/31 10:50	55.5	↓-1.2
12/31 11:00	54.5	↓-1.0
12/31 11:10	53.5	↓-1.0
12/31 11:20	52.7	↓-0.8
12/31 11:30	52.1	↓-0.6
12/31 11:40	51.5	↓-0.6
12/31 11:50	51.2	↓-0.3
12/31 12:00	50.9	↓-0.3	干潮
12/31 12:10	50.9	0
12/31 12:20	51.0	↑0.1
12/31 12:30	51.3	↑0.3
12/31 12:40	51.7	↑0.4
12/31 12:50	52.3	↑0.6
12/31 13:00	53.0	↑0.7
12/31 13:10	53.9	↑0.9
12/31 13:20	54.9	↑1.0
12/31 13:30	56.0	↑1.1
12/31 13:40	57.3	↑1.3
12/31 13:50	58.6	↑1.3
12/31 14:00	60.1	↑1.5
12/31 14:10	61.6	↑1.5
12/31 14:20	63.3	↑1.7
12/31 14:30	64.9	↑1.6
12/31 14:40	66.6	↑1.7
12/31 14:50	68.4	↑1.8
12/31 15:00	70.2	↑1.8
12/31 15:10	71.9	↑1.7
12/31 15:20	73.7	↑1.8
12/31 15:30	75.4	↑1.7
12/31 15:40	77.1	↑1.7
12/31 15:50	78.7	↑1.6
12/31 16:00	80.2	↑1.5
12/31 16:10	81.6	↑1.4
12/31 16:20	82.9	↑1.3
12/31 16:30	84.1	↑1.2
12/31 16:40	85.2	↑1.1
12/31 16:50	86.1	↑0.9
12/31 17:00	86.8	↑0.7
12/31 17:10	87.4	↑0.6
12/31 17:20	87.8	↑0.4
12/31 17:30	88.0	↑0.2	満潮
12/31 17:40	88.1	↑0.1
12/31 17:50	87.9	↓-0.2
12/31 18:00	87.6	↓-0.3
12/31 18:10	87.0	↓-0.6
12/31 18:20	86.3	↓-0.7
12/31 18:30	85.5	↓-0.8
12/31 18:40	84.4	↓-1.1
12/31 18:50	83.2	↓-1.2
12/31 19:00	81.8	↓-1.4
12/31 19:10	80.3	↓-1.5
12/31 19:20	78.7	↓-1.6
12/31 19:30	76.9	↓-1.8
12/31 19:40	75.0	↓-1.9
12/31 19:50	73.0	↓-2.0
12/31 20:00	70.9	↓-2.1
12/31 20:10	68.7	↓-2.2
12/31 20:20	66.4	↓-2.3
12/31 20:30	64.0	↓-2.4
12/31 20:40	61.6	↓-2.4
12/31 20:50	59.1	↓-2.5
12/31 21:00	56.5	↓-2.6
12/31 21:10	53.8	↓-2.7
12/31 21:20	51.2	↓-2.6
12/31 21:30	48.5	↓-2.7
12/31 21:40	45.8	↓-2.7
12/31 21:50	43.1	↓-2.7
12/31 22:00	40.4	↓-2.7
12/31 22:10	37.7	↓-2.7
12/31 22:20	35.1	↓-2.6
12/31 22:30	32.6	↓-2.5
12/31 22:40	30.1	↓-2.5
12/31 22:50	27.8	↓-2.3
12/31 23:00	25.6	↓-2.2
12/31 23:10	23.5	↓-2.1
12/31 23:20	21.6	↓-1.9
12/31 23:30	19.8	↓-1.8
12/31 23:40	18.2	↓-1.6
12/31 23:50	16.9	↓-1.3