23 (月)	07:48	01:39	22:57	15:26
	76cm	49cm	59cm	16cm
小潮 出 04:47 入 18:27 出 10:57 入 00:50 潮干狩り ○ 13:52～17:13

函館（北海道）2018年04月23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
4/23 00:00	52.1	↓-0.7
4/23 00:10	51.5	↓-0.6
4/23 00:20	50.9	↓-0.6
4/23 00:30	50.3	↓-0.6
4/23 00:40	49.8	↓-0.5
4/23 00:50	49.3	↓-0.5
4/23 01:00	48.9	↓-0.4
4/23 01:10	48.6	↓-0.3
4/23 01:20	48.4	↓-0.2
4/23 01:30	48.3	↓-0.1	干潮
4/23 01:40	48.2	↓-0.1
4/23 01:50	48.3	↑0.1
4/23 02:00	48.5	↑0.2
4/23 02:10	48.7	↑0.2
4/23 02:20	49.1	↑0.4
4/23 02:30	49.6	↑0.5
4/23 02:40	50.2	↑0.6
4/23 02:50	50.9	↑0.7
4/23 03:00	51.7	↑0.8
4/23 03:10	52.6	↑0.9
4/23 03:20	53.5	↑0.9
4/23 03:30	54.5	↑1.0
4/23 03:40	55.5	↑1.0
4/23 03:50	56.6	↑1.1
4/23 04:00	57.7	↑1.1
4/23 04:10	58.8	↑1.1
4/23 04:20	59.9	↑1.1
4/23 04:30	61.0	↑1.1
4/23 04:40	62.1	↑1.1
4/23 04:50	63.2	↑1.1
4/23 05:00	64.3	↑1.1
4/23 05:10	65.4	↑1.1
4/23 05:20	66.4	↑1.0
4/23 05:30	67.4	↑1.0
4/23 05:40	68.3	↑0.9
4/23 05:50	69.2	↑0.9
4/23 06:00	70.1	↑0.9
4/23 06:10	70.9	↑0.8
4/23 06:20	71.7	↑0.8
4/23 06:30	72.4	↑0.7
4/23 06:40	73.1	↑0.7
4/23 06:50	73.6	↑0.5
4/23 07:00	74.1	↑0.5
4/23 07:10	74.6	↑0.5
4/23 07:20	74.9	↑0.3
4/23 07:30	75.1	↑0.2
4/23 07:40	75.3	↑0.2	満潮
4/23 07:50	75.3	0
4/23 08:00	75.2	↓-0.1
4/23 08:10	75.0	↓-0.2
4/23 08:20	74.7	↓-0.3
4/23 08:30	74.2	↓-0.5
4/23 08:40	73.6	↓-0.6
4/23 08:50	72.9	↓-0.7
4/23 09:00	72.1	↓-0.8
4/23 09:10	71.1	↓-1.0
4/23 09:20	70.0	↓-1.1
4/23 09:30	68.8	↓-1.2
4/23 09:40	67.5	↓-1.3
4/23 09:50	66.1	↓-1.4
4/23 10:00	64.6	↓-1.5
4/23 10:10	63.0	↓-1.6
4/23 10:20	61.3	↓-1.7
4/23 10:30	59.6	↓-1.7
4/23 10:40	57.8	↓-1.8
4/23 10:50	55.9	↓-1.9
4/23 11:00	54.0	↓-1.9
4/23 11:10	52.0	↓-2.0
4/23 11:20	50.0	↓-2.0
4/23 11:30	48.0	↓-2.0
4/23 11:40	46.0	↓-2.0
4/23 11:50	43.9	↓-2.1	最大潮位差
4/23 12:00	41.8	↓-2.1	最大潮位差
4/23 12:10	39.8	↓-2.0
4/23 12:20	37.8	↓-2.0
4/23 12:30	35.7	↓-2.1	最大潮位差
4/23 12:40	33.8	↓-1.9
4/23 12:50	31.8	↓-2.0
4/23 13:00	30.0	↓-1.8
4/23 13:10	28.2	↓-1.8
4/23 13:20	26.5	↓-1.7
4/23 13:30	24.8	↓-1.7
4/23 13:40	23.3	↓-1.5
4/23 13:50	21.9	↓-1.4
4/23 14:00	20.6	↓-1.3
4/23 14:10	19.5	↓-1.1
4/23 14:20	18.5	↓-1.0
4/23 14:30	17.6	↓-0.9
4/23 14:40	16.9	↓-0.7
4/23 14:50	16.3	↓-0.6
4/23 15:00	15.9	↓-0.4
4/23 15:10	15.6	↓-0.3
4/23 15:20	15.5	↓-0.1	干潮
4/23 15:30	15.5	0
4/23 15:40	15.6	↑0.1
4/23 15:50	15.9	↑0.3
4/23 16:00	16.3	↑0.4
4/23 16:10	16.7	↑0.4
4/23 16:20	17.3	↑0.6
4/23 16:30	18.0	↑0.7
4/23 16:40	18.7	↑0.7
4/23 16:50	19.6	↑0.9
4/23 17:00	20.5	↑0.9
4/23 17:10	21.5	↑1.0
4/23 17:20	22.5	↑1.0
4/23 17:30	23.6	↑1.1
4/23 17:40	24.8	↑1.2
4/23 17:50	26.1	↑1.3
4/23 18:00	27.4	↑1.3
4/23 18:10	28.7	↑1.3
4/23 18:20	30.1	↑1.4
4/23 18:30	31.5	↑1.4
4/23 18:40	33.0	↑1.5
4/23 18:50	34.5	↑1.5
4/23 19:00	36.1	↑1.6
4/23 19:10	37.6	↑1.5
4/23 19:20	39.2	↑1.6
4/23 19:30	40.8	↑1.6
4/23 19:40	42.3	↑1.5
4/23 19:50	43.8	↑1.5
4/23 20:00	45.3	↑1.5
4/23 20:10	46.8	↑1.5
4/23 20:20	48.2	↑1.4
4/23 20:30	49.5	↑1.3
4/23 20:40	50.8	↑1.3
4/23 20:50	51.9	↑1.1
4/23 21:00	53.0	↑1.1
4/23 21:10	54.0	↑1.0
4/23 21:20	54.9	↑0.9
4/23 21:30	55.7	↑0.8
4/23 21:40	56.4	↑0.7
4/23 21:50	57.0	↑0.6
4/23 22:00	57.5	↑0.5
4/23 22:10	58.0	↑0.5
4/23 22:20	58.3	↑0.3
4/23 22:30	58.5	↑0.2
4/23 22:40	58.7	↑0.2
4/23 22:50	58.8	↑0.1	満潮
4/23 23:00	58.8	0
4/23 23:10	58.7	↓-0.1
4/23 23:20	58.6	↓-0.1
4/23 23:30	58.4	↓-0.2
4/23 23:40	58.1	↓-0.3
4/23 23:50	57.9	↓-0.2