20 (水)	07:07	00:44	19:09	13:10
	237cm	45cm	240cm	68cm
中潮 出 05:47 入 18:57 出 04:24 入 16:00

黒子島（長崎）2039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	50.6	↓-2.8
4/20 00:10	48.3	↓-2.3
4/20 00:20	46.6	↓-1.7
4/20 00:30	45.5	↓-1.1
4/20 00:40	45.0	↓-0.5	干潮
4/20 00:50	45.1	↑0.1
4/20 01:00	45.9	↑0.8
4/20 01:10	47.3	↑1.4
4/20 01:20	49.3	↑2.0
4/20 01:30	52.0	↑2.7
4/20 01:40	55.2	↑3.2
4/20 01:50	59.0	↑3.8
4/20 02:00	63.3	↑4.3
4/20 02:10	68.1	↑4.8
4/20 02:20	73.5	↑5.4
4/20 02:30	79.3	↑5.8
4/20 02:40	85.5	↑6.2
4/20 02:50	92.1	↑6.6
4/20 03:00	99.0	↑6.9
4/20 03:10	106.2	↑7.2
4/20 03:20	113.6	↑7.4
4/20 03:30	121.2	↑7.6
4/20 03:40	129.0	↑7.8
4/20 03:50	136.8	↑7.8
4/20 04:00	144.7	↑7.9
4/20 04:10	152.5	↑7.8
4/20 04:20	160.3	↑7.8
4/20 04:30	167.9	↑7.6
4/20 04:40	175.4	↑7.5
4/20 04:50	182.6	↑7.2
4/20 05:00	189.5	↑6.9
4/20 05:10	196.1	↑6.6
4/20 05:20	202.4	↑6.3
4/20 05:30	208.2	↑5.8
4/20 05:40	213.6	↑5.4
4/20 05:50	218.4	↑4.8
4/20 06:00	222.8	↑4.4
4/20 06:10	226.6	↑3.8
4/20 06:20	229.8	↑3.2
4/20 06:30	232.4	↑2.6
4/20 06:40	234.4	↑2.0
4/20 06:50	235.8	↑1.4
4/20 07:00	236.5	↑0.7	満潮
4/20 07:10	236.6	↑0.1
4/20 07:20	236.0	↓-0.6
4/20 07:30	234.9	↓-1.1
4/20 07:40	233.1	↓-1.8
4/20 07:50	230.6	↓-2.5
4/20 08:00	227.6	↓-3.0
4/20 08:10	224.1	↓-3.5
4/20 08:20	219.9	↓-4.2
4/20 08:30	215.3	↓-4.6
4/20 08:40	210.2	↓-5.1
4/20 08:50	204.7	↓-5.5
4/20 09:00	198.8	↓-5.9
4/20 09:10	192.5	↓-6.3
4/20 09:20	185.9	↓-6.6
4/20 09:30	179.1	↓-6.8
4/20 09:40	172.1	↓-7.0
4/20 09:50	164.9	↓-7.2
4/20 10:00	157.6	↓-7.3
4/20 10:10	150.3	↓-7.3
4/20 10:20	143.0	↓-7.3
4/20 10:30	135.8	↓-7.2
4/20 10:40	128.7	↓-7.1
4/20 10:50	121.7	↓-7.0
4/20 11:00	115.0	↓-6.7
4/20 11:10	108.6	↓-6.4
4/20 11:20	102.5	↓-6.1
4/20 11:30	96.7	↓-5.8
4/20 11:40	91.4	↓-5.3
4/20 11:50	86.6	↓-4.8
4/20 12:00	82.2	↓-4.4
4/20 12:10	78.3	↓-3.9
4/20 12:20	75.1	↓-3.2
4/20 12:30	72.3	↓-2.8
4/20 12:40	70.2	↓-2.1
4/20 12:50	68.7	↓-1.5
4/20 13:00	67.9	↓-0.8	干潮
4/20 13:10	67.7	↓-0.2	干潮
4/20 13:20	68.1	↑0.4
4/20 13:30	69.1	↑1.0
4/20 13:40	70.8	↑1.7
4/20 13:50	73.1	↑2.3
4/20 14:00	76.0	↑2.9
4/20 14:10	79.5	↑3.5
4/20 14:20	83.6	↑4.1
4/20 14:30	88.1	↑4.5
4/20 14:40	93.2	↑5.1
4/20 14:50	98.7	↑5.5
4/20 15:00	104.7	↑6.0
4/20 15:10	111.0	↑6.3
4/20 15:20	117.6	↑6.6
4/20 15:30	124.5	↑6.9
4/20 15:40	131.7	↑7.2
4/20 15:50	139.0	↑7.3
4/20 16:00	146.4	↑7.4
4/20 16:10	153.9	↑7.5
4/20 16:20	161.4	↑7.5
4/20 16:30	168.9	↑7.5
4/20 16:40	176.2	↑7.3
4/20 16:50	183.4	↑7.2
4/20 17:00	190.3	↑6.9
4/20 17:10	197.0	↑6.7
4/20 17:20	203.4	↑6.4
4/20 17:30	209.4	↑6.0
4/20 17:40	214.9	↑5.5
4/20 17:50	220.0	↑5.1
4/20 18:00	224.6	↑4.6
4/20 18:10	228.6	↑4.0
4/20 18:20	232.1	↑3.5
4/20 18:30	235.0	↑2.9
4/20 18:40	237.2	↑2.2
4/20 18:50	238.7	↑1.5
4/20 19:00	239.7	↑1.0	満潮
4/20 19:10	239.9	↑0.2
4/20 19:20	239.4	↓-0.5
4/20 19:30	238.3	↓-1.1
4/20 19:40	236.4	↓-1.9
4/20 19:50	233.9	↓-2.5
4/20 20:00	230.8	↓-3.1
4/20 20:10	227.0	↓-3.8
4/20 20:20	222.6	↓-4.4
4/20 20:30	217.6	↓-5.0
4/20 20:40	212.0	↓-5.6
4/20 20:50	205.9	↓-6.1
4/20 21:00	199.3	↓-6.6
4/20 21:10	192.3	↓-7.0
4/20 21:20	185.0	↓-7.3
4/20 21:30	177.2	↓-7.8
4/20 21:40	169.2	↓-8.0
4/20 21:50	161.0	↓-8.2
4/20 22:00	152.6	↓-8.4
4/20 22:10	144.1	↓-8.5
4/20 22:20	135.5	↓-8.6	最大潮位差
4/20 22:30	127.0	↓-8.5
4/20 22:40	118.5	↓-8.5
4/20 22:50	110.1	↓-8.4
4/20 23:00	101.9	↓-8.2
4/20 23:10	94.0	↓-7.9
4/20 23:20	86.4	↓-7.6
4/20 23:30	79.1	↓-7.3
4/20 23:40	72.3	↓-6.8
4/20 23:50	65.9	↓-6.4