18 (土)	03:21	07:25	12:05	20:15
	63cm	59cm	75cm	7cm
中潮 出 05:46 入 17:48 出 04:01 入 13:15

函館（北海道）2023年03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
3/18 00:00	49.5	↑1.5
3/18 00:10	50.9	↑1.4
3/18 00:20	52.2	↑1.3
3/18 00:30	53.4	↑1.2
3/18 00:40	54.5	↑1.1
3/18 00:50	55.6	↑1.1
3/18 01:00	56.5	↑0.9
3/18 01:10	57.5	↑1.0
3/18 01:20	58.3	↑0.8
3/18 01:30	59.0	↑0.7
3/18 01:40	59.7	↑0.7
3/18 01:50	60.3	↑0.6
3/18 02:00	60.9	↑0.6
3/18 02:10	61.3	↑0.4
3/18 02:20	61.7	↑0.4
3/18 02:30	62.1	↑0.4
3/18 02:40	62.3	↑0.2
3/18 02:50	62.5	↑0.2
3/18 03:00	62.7	↑0.2
3/18 03:10	62.8	↑0.1
3/18 03:20	62.8	0	満潮
3/18 03:30	62.8	0
3/18 03:40	62.7	↓-0.1
3/18 03:50	62.6	↓-0.1
3/18 04:00	62.4	↓-0.2
3/18 04:10	62.2	↓-0.2
3/18 04:20	62.0	↓-0.2
3/18 04:30	61.8	↓-0.2
3/18 04:40	61.6	↓-0.2
3/18 04:50	61.3	↓-0.3
3/18 05:00	61.0	↓-0.3
3/18 05:10	60.8	↓-0.2
3/18 05:20	60.5	↓-0.3
3/18 05:30	60.2	↓-0.3
3/18 05:40	59.9	↓-0.3
3/18 05:50	59.7	↓-0.2
3/18 06:00	59.4	↓-0.3
3/18 06:10	59.2	↓-0.2
3/18 06:20	58.9	↓-0.3
3/18 06:30	58.7	↓-0.2
3/18 06:40	58.5	↓-0.2
3/18 06:50	58.4	↓-0.1
3/18 07:00	58.2	↓-0.2
3/18 07:10	58.1	↓-0.1
3/18 07:20	58.1	0	干潮
3/18 07:30	58.1	0
3/18 07:40	58.2	↑0.1
3/18 07:50	58.3	↑0.1
3/18 08:00	58.5	↑0.2
3/18 08:10	58.7	↑0.2
3/18 08:20	59.1	↑0.4
3/18 08:30	59.5	↑0.4
3/18 08:40	60.0	↑0.5
3/18 08:50	60.6	↑0.6
3/18 09:00	61.3	↑0.7
3/18 09:10	62.0	↑0.7
3/18 09:20	62.9	↑0.9
3/18 09:30	63.7	↑0.8
3/18 09:40	64.7	↑1.0
3/18 09:50	65.6	↑0.9
3/18 10:00	66.6	↑1.0
3/18 10:10	67.6	↑1.0
3/18 10:20	68.6	↑1.0
3/18 10:30	69.5	↑0.9
3/18 10:40	70.4	↑0.9
3/18 10:50	71.3	↑0.9
3/18 11:00	72.1	↑0.8
3/18 11:10	72.8	↑0.7
3/18 11:20	73.4	↑0.6
3/18 11:30	73.9	↑0.5
3/18 11:40	74.2	↑0.3
3/18 11:50	74.5	↑0.3
3/18 12:00	74.6	↑0.1	満潮
3/18 12:10	74.6	0
3/18 12:20	74.4	↓-0.2
3/18 12:30	74.2	↓-0.2
3/18 12:40	73.7	↓-0.5
3/18 12:50	73.2	↓-0.5
3/18 13:00	72.5	↓-0.7
3/18 13:10	71.7	↓-0.8
3/18 13:20	70.8	↓-0.9
3/18 13:30	69.7	↓-1.1
3/18 13:40	68.6	↓-1.1
3/18 13:50	67.3	↓-1.3
3/18 14:00	65.9	↓-1.4
3/18 14:10	64.5	↓-1.4
3/18 14:20	62.9	↓-1.6
3/18 14:30	61.3	↓-1.6
3/18 14:40	59.6	↓-1.7
3/18 14:50	57.8	↓-1.8
3/18 15:00	56.0	↓-1.8
3/18 15:10	54.0	↓-2.0
3/18 15:20	52.1	↓-1.9
3/18 15:30	50.1	↓-2.0
3/18 15:40	48.0	↓-2.1
3/18 15:50	45.9	↓-2.1
3/18 16:00	43.8	↓-2.1
3/18 16:10	41.7	↓-2.1
3/18 16:20	39.5	↓-2.2
3/18 16:30	37.4	↓-2.1
3/18 16:40	35.3	↓-2.1
3/18 16:50	33.1	↓-2.2
3/18 17:00	31.1	↓-2.0
3/18 17:10	29.0	↓-2.1
3/18 17:20	27.0	↓-2.0
3/18 17:30	25.1	↓-1.9
3/18 17:40	23.2	↓-1.9
3/18 17:50	21.3	↓-1.9
3/18 18:00	19.6	↓-1.7
3/18 18:10	17.9	↓-1.7
3/18 18:20	16.3	↓-1.6
3/18 18:30	14.8	↓-1.5
3/18 18:40	13.4	↓-1.4
3/18 18:50	12.2	↓-1.2
3/18 19:00	11.0	↓-1.2
3/18 19:10	9.9	↓-1.1
3/18 19:20	9.0	↓-0.9
3/18 19:30	8.2	↓-0.8
3/18 19:40	7.6	↓-0.6
3/18 19:50	7.1	↓-0.5
3/18 20:00	6.8	↓-0.3
3/18 20:10	6.6	↓-0.2	干潮
3/18 20:20	6.6	0
3/18 20:30	6.8	↑0.2
3/18 20:40	7.2	↑0.4
3/18 20:50	7.8	↑0.6
3/18 21:00	8.6	↑0.8
3/18 21:10	9.6	↑1.0
3/18 21:20	10.7	↑1.1
3/18 21:30	12.0	↑1.3
3/18 21:40	13.5	↑1.5
3/18 21:50	15.2	↑1.7
3/18 22:00	17.1	↑1.9
3/18 22:10	19.0	↑1.9
3/18 22:20	21.1	↑2.1
3/18 22:30	23.3	↑2.2
3/18 22:40	25.6	↑2.3
3/18 22:50	27.9	↑2.3
3/18 23:00	30.3	↑2.4	最大潮位差
3/18 23:10	32.7	↑2.4	最大潮位差
3/18 23:20	35.1	↑2.4	最大潮位差
3/18 23:30	37.5	↑2.4	最大潮位差
3/18 23:40	39.9	↑2.4	最大潮位差
3/18 23:50	42.2	↑2.3