31 (日)	01:50	07:14	11:42	19:39
	61cm	52cm	66cm	20cm
長潮 出 05:24 入 18:02 出 03:05 入 12:58

函館（北海道）2019年03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
3/31 00:00	56.8	↑0.7
3/31 00:10	57.6	↑0.8
3/31 00:20	58.2	↑0.6
3/31 00:30	58.8	↑0.6
3/31 00:40	59.3	↑0.5
3/31 00:50	59.7	↑0.4
3/31 01:00	60.1	↑0.4
3/31 01:10	60.4	↑0.3
3/31 01:20	60.6	↑0.2
3/31 01:30	60.8	↑0.2
3/31 01:40	60.9	↑0.1	満潮
3/31 01:50	60.9	0	満潮
3/31 02:00	60.9	0
3/31 02:10	60.8	↓-0.1
3/31 02:20	60.6	↓-0.2
3/31 02:30	60.4	↓-0.2
3/31 02:40	60.2	↓-0.2
3/31 02:50	59.9	↓-0.3
3/31 03:00	59.5	↓-0.4
3/31 03:10	59.2	↓-0.3
3/31 03:20	58.8	↓-0.4
3/31 03:30	58.4	↓-0.4
3/31 03:40	58.0	↓-0.4
3/31 03:50	57.5	↓-0.5
3/31 04:00	57.1	↓-0.4
3/31 04:10	56.7	↓-0.4
3/31 04:20	56.3	↓-0.4
3/31 04:30	55.8	↓-0.5
3/31 04:40	55.4	↓-0.4
3/31 04:50	55.0	↓-0.4
3/31 05:00	54.6	↓-0.4
3/31 05:10	54.2	↓-0.4
3/31 05:20	53.8	↓-0.4
3/31 05:30	53.4	↓-0.4
3/31 05:40	53.1	↓-0.3
3/31 05:50	52.7	↓-0.4
3/31 06:00	52.4	↓-0.3
3/31 06:10	52.1	↓-0.3
3/31 06:20	51.8	↓-0.3
3/31 06:30	51.6	↓-0.2
3/31 06:40	51.3	↓-0.3
3/31 06:50	51.2	↓-0.1
3/31 07:00	51.1	↓-0.1
3/31 07:10	51.0	↓-0.1	干潮
3/31 07:20	51.0	0
3/31 07:30	51.1	↑0.1
3/31 07:40	51.3	↑0.2
3/31 07:50	51.5	↑0.2
3/31 08:00	51.8	↑0.3
3/31 08:10	52.2	↑0.4
3/31 08:20	52.7	↑0.5
3/31 08:30	53.3	↑0.6
3/31 08:40	53.9	↑0.6
3/31 08:50	54.6	↑0.7
3/31 09:00	55.4	↑0.8
3/31 09:10	56.2	↑0.8
3/31 09:20	57.0	↑0.8
3/31 09:30	57.9	↑0.9
3/31 09:40	58.7	↑0.8
3/31 09:50	59.6	↑0.9
3/31 10:00	60.4	↑0.8
3/31 10:10	61.2	↑0.8
3/31 10:20	61.9	↑0.7
3/31 10:30	62.6	↑0.7
3/31 10:40	63.2	↑0.6
3/31 10:50	63.8	↑0.6
3/31 11:00	64.2	↑0.4
3/31 11:10	64.6	↑0.4
3/31 11:20	64.8	↑0.2
3/31 11:30	65.0	↑0.2
3/31 11:40	65.1	↑0.1	満潮
3/31 11:50	65.0	↓-0.1
3/31 12:00	64.9	↓-0.1
3/31 12:10	64.6	↓-0.3
3/31 12:20	64.3	↓-0.3
3/31 12:30	63.9	↓-0.4
3/31 12:40	63.4	↓-0.5
3/31 12:50	62.8	↓-0.6
3/31 13:00	62.1	↓-0.7
3/31 13:10	61.3	↓-0.8
3/31 13:20	60.5	↓-0.8
3/31 13:30	59.6	↓-0.9
3/31 13:40	58.6	↓-1.0
3/31 13:50	57.5	↓-1.1
3/31 14:00	56.4	↓-1.1
3/31 14:10	55.2	↓-1.2
3/31 14:20	54.0	↓-1.2
3/31 14:30	52.7	↓-1.3
3/31 14:40	51.3	↓-1.4
3/31 14:50	50.0	↓-1.3
3/31 15:00	48.6	↓-1.4
3/31 15:10	47.1	↓-1.5
3/31 15:20	45.7	↓-1.4
3/31 15:30	44.2	↓-1.5
3/31 15:40	42.7	↓-1.5
3/31 15:50	41.2	↓-1.5
3/31 16:00	39.8	↓-1.4
3/31 16:10	38.3	↓-1.5
3/31 16:20	36.9	↓-1.4
3/31 16:30	35.5	↓-1.4
3/31 16:40	34.1	↓-1.4
3/31 16:50	32.8	↓-1.3
3/31 17:00	31.5	↓-1.3
3/31 17:10	30.2	↓-1.3
3/31 17:20	29.0	↓-1.2
3/31 17:30	27.8	↓-1.2
3/31 17:40	26.7	↓-1.1
3/31 17:50	25.7	↓-1.0
3/31 18:00	24.7	↓-1.0
3/31 18:10	23.8	↓-0.9
3/31 18:20	22.9	↓-0.9
3/31 18:30	22.1	↓-0.8
3/31 18:40	21.4	↓-0.7
3/31 18:50	20.8	↓-0.6
3/31 19:00	20.3	↓-0.5
3/31 19:10	19.9	↓-0.4
3/31 19:20	19.6	↓-0.3
3/31 19:30	19.5	↓-0.1	干潮
3/31 19:40	19.4	↓-0.1
3/31 19:50	19.5	↑0.1
3/31 20:00	19.8	↑0.3
3/31 20:10	20.2	↑0.4
3/31 20:20	20.7	↑0.5
3/31 20:30	21.4	↑0.7
3/31 20:40	22.3	↑0.9
3/31 20:50	23.3	↑1.0
3/31 21:00	24.4	↑1.1
3/31 21:10	25.7	↑1.3
3/31 21:20	27.1	↑1.4
3/31 21:30	28.7	↑1.6
3/31 21:40	30.3	↑1.6
3/31 21:50	32.0	↑1.7
3/31 22:00	33.8	↑1.8
3/31 22:10	35.6	↑1.8
3/31 22:20	37.5	↑1.9	最大潮位差
3/31 22:30	39.4	↑1.9	最大潮位差
3/31 22:40	41.3	↑1.9	最大潮位差
3/31 22:50	43.1	↑1.8
3/31 23:00	45.0	↑1.9	最大潮位差
3/31 23:10	46.8	↑1.8
3/31 23:20	48.5	↑1.7
3/31 23:30	50.2	↑1.7
3/31 23:40	51.8	↑1.6
3/31 23:50	53.4	↑1.6