20 (金)	04:23	10:06	15:31	22:36
	190cm	140cm	185cm	72cm
長潮 出 05:46 入 18:57 出 12:06 入 01:56

黒子島（長崎）2040年04月20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
4/20 00:00	118.1	↑4.0
4/20 00:10	122.1	↑4.0
4/20 00:20	126.2	↑4.1
4/20 00:30	130.3	↑4.1
4/20 00:40	134.4	↑4.1
4/20 00:50	138.5	↑4.1
4/20 01:00	142.5	↑4.0
4/20 01:10	146.5	↑4.0
4/20 01:20	150.4	↑3.9
4/20 01:30	154.1	↑3.7
4/20 01:40	157.8	↑3.7
4/20 01:50	161.3	↑3.5
4/20 02:00	164.7	↑3.4
4/20 02:10	167.9	↑3.2
4/20 02:20	170.9	↑3.0
4/20 02:30	173.7	↑2.8
4/20 02:40	176.3	↑2.6
4/20 02:50	178.7	↑2.4
4/20 03:00	180.8	↑2.1
4/20 03:10	182.7	↑1.9
4/20 03:20	184.4	↑1.7
4/20 03:30	185.9	↑1.5
4/20 03:40	187.0	↑1.1
4/20 03:50	188.0	↑1.0
4/20 04:00	188.6	↑0.6
4/20 04:10	189.1	↑0.5
4/20 04:20	189.2	↑0.1	満潮
4/20 04:30	189.2	0
4/20 04:40	188.9	↓-0.3
4/20 04:50	188.4	↓-0.5
4/20 05:00	187.6	↓-0.8
4/20 05:10	186.7	↓-0.9
4/20 05:20	185.5	↓-1.2
4/20 05:30	184.2	↓-1.3
4/20 05:40	182.7	↓-1.5
4/20 05:50	181.1	↓-1.6
4/20 06:00	179.3	↓-1.8
4/20 06:10	177.4	↓-1.9
4/20 06:20	175.4	↓-2.0
4/20 06:30	173.3	↓-2.1
4/20 06:40	171.1	↓-2.2
4/20 06:50	168.9	↓-2.2
4/20 07:00	166.6	↓-2.3
4/20 07:10	164.4	↓-2.2
4/20 07:20	162.1	↓-2.3
4/20 07:30	159.9	↓-2.2
4/20 07:40	157.7	↓-2.2
4/20 07:50	155.5	↓-2.2
4/20 08:00	153.5	↓-2.0
4/20 08:10	151.5	↓-2.0
4/20 08:20	149.6	↓-1.9
4/20 08:30	147.9	↓-1.7
4/20 08:40	146.3	↓-1.6
4/20 08:50	144.8	↓-1.5
4/20 09:00	143.5	↓-1.3
4/20 09:10	142.4	↓-1.1
4/20 09:20	141.4	↓-1.0
4/20 09:30	140.6	↓-0.8
4/20 09:40	140.0	↓-0.6
4/20 09:50	139.7	↓-0.3
4/20 10:00	139.5	↓-0.2	干潮
4/20 10:10	139.4	↓-0.1
4/20 10:20	139.6	↑0.2
4/20 10:30	140.0	↑0.4
4/20 10:40	140.6	↑0.6
4/20 10:50	141.4	↑0.8
4/20 11:00	142.3	↑0.9
4/20 11:10	143.4	↑1.1
4/20 11:20	144.7	↑1.3
4/20 11:30	146.2	↑1.5
4/20 11:40	147.7	↑1.5
4/20 11:50	149.4	↑1.7
4/20 12:00	151.3	↑1.9
4/20 12:10	153.2	↑1.9
4/20 12:20	155.2	↑2.0
4/20 12:30	157.2	↑2.0
4/20 12:40	159.3	↑2.1
4/20 12:50	161.4	↑2.1
4/20 13:00	163.6	↑2.2
4/20 13:10	165.7	↑2.1
4/20 13:20	167.8	↑2.1
4/20 13:30	169.9	↑2.1
4/20 13:40	171.9	↑2.0
4/20 13:50	173.8	↑1.9
4/20 14:00	175.5	↑1.7
4/20 14:10	177.2	↑1.7
4/20 14:20	178.7	↑1.5
4/20 14:30	180.1	↑1.4
4/20 14:40	181.3	↑1.2
4/20 14:50	182.3	↑1.0
4/20 15:00	183.1	↑0.8
4/20 15:10	183.7	↑0.6
4/20 15:20	184.1	↑0.4
4/20 15:30	184.2	↑0.1	満潮
4/20 15:40	184.1	↓-0.1
4/20 15:50	183.7	↓-0.4
4/20 16:00	183.1	↓-0.6
4/20 16:10	182.2	↓-0.9
4/20 16:20	181.1	↓-1.1
4/20 16:30	179.7	↓-1.4
4/20 16:40	178.0	↓-1.7
4/20 16:50	176.1	↓-1.9
4/20 17:00	173.9	↓-2.2
4/20 17:10	171.5	↓-2.4
4/20 17:20	168.8	↓-2.7
4/20 17:30	166.0	↓-2.8
4/20 17:40	162.9	↓-3.1
4/20 17:50	159.6	↓-3.3
4/20 18:00	156.1	↓-3.5
4/20 18:10	152.5	↓-3.6
4/20 18:20	148.7	↓-3.8
4/20 18:30	144.8	↓-3.9
4/20 18:40	140.8	↓-4.0
4/20 18:50	136.7	↓-4.1
4/20 19:00	132.5	↓-4.2	最大潮位差
4/20 19:10	128.3	↓-4.2	最大潮位差
4/20 19:20	124.1	↓-4.2	最大潮位差
4/20 19:30	119.9	↓-4.2	最大潮位差
4/20 19:40	115.7	↓-4.2	最大潮位差
4/20 19:50	111.6	↓-4.1
4/20 20:00	107.6	↓-4.0
4/20 20:10	103.6	↓-4.0
4/20 20:20	99.8	↓-3.8
4/20 20:30	96.2	↓-3.6
4/20 20:40	92.7	↓-3.5
4/20 20:50	89.4	↓-3.3
4/20 21:00	86.4	↓-3.0
4/20 21:10	83.6	↓-2.8
4/20 21:20	81.0	↓-2.6
4/20 21:30	78.7	↓-2.3
4/20 21:40	76.8	↓-1.9
4/20 21:50	75.1	↓-1.7
4/20 22:00	73.7	↓-1.4
4/20 22:10	72.7	↓-1.0
4/20 22:20	72.0	↓-0.7
4/20 22:30	71.6	↓-0.4	干潮
4/20 22:40	71.6	0
4/20 22:50	72.0	↑0.4
4/20 23:00	72.7	↑0.7
4/20 23:10	73.8	↑1.1
4/20 23:20	75.2	↑1.4
4/20 23:30	76.9	↑1.7
4/20 23:40	79.0	↑2.1
4/20 23:50	81.4	↑2.4