20 (月)	11:27	05:34	-	18:04
	234cm	91cm	-	39cm
中潮 出 05:46 入 18:57 出 08:58 入 23:17 潮干狩り ○ 16:38～18:57

黒子島（長崎）2037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	231.3	↓-0.6
4/20 00:10	230.1	↓-1.2
4/20 00:20	228.3	↓-1.8
4/20 00:30	226.0	↓-2.3
4/20 00:40	223.1	↓-2.9
4/20 00:50	219.7	↓-3.4
4/20 01:00	215.8	↓-3.9
4/20 01:10	211.5	↓-4.3
4/20 01:20	206.7	↓-4.8
4/20 01:30	201.6	↓-5.1
4/20 01:40	196.1	↓-5.5
4/20 01:50	190.4	↓-5.7
4/20 02:00	184.4	↓-6.0
4/20 02:10	178.3	↓-6.1
4/20 02:20	172.0	↓-6.3
4/20 02:30	165.6	↓-6.4
4/20 02:40	159.2	↓-6.4
4/20 02:50	152.9	↓-6.3
4/20 03:00	146.6	↓-6.3
4/20 03:10	140.4	↓-6.2
4/20 03:20	134.5	↓-5.9
4/20 03:30	128.7	↓-5.8
4/20 03:40	123.2	↓-5.5
4/20 03:50	118.0	↓-5.2
4/20 04:00	113.1	↓-4.9
4/20 04:10	108.7	↓-4.4
4/20 04:20	104.7	↓-4.0
4/20 04:30	101.1	↓-3.6
4/20 04:40	98.0	↓-3.1
4/20 04:50	95.4	↓-2.6
4/20 05:00	93.3	↓-2.1
4/20 05:10	91.8	↓-1.5
4/20 05:20	90.8	↓-1.0
4/20 05:30	90.3	↓-0.5	干潮
4/20 05:40	90.5	↑0.2
4/20 05:50	91.2	↑0.7
4/20 06:00	92.4	↑1.2
4/20 06:10	94.2	↑1.8
4/20 06:20	96.5	↑2.3
4/20 06:30	99.3	↑2.8
4/20 06:40	102.7	↑3.4
4/20 06:50	106.4	↑3.7
4/20 07:00	110.7	↑4.3
4/20 07:10	115.3	↑4.6
4/20 07:20	120.2	↑4.9
4/20 07:30	125.5	↑5.3
4/20 07:40	131.1	↑5.6
4/20 07:50	137.0	↑5.9
4/20 08:00	143.0	↑6.0
4/20 08:10	149.2	↑6.2
4/20 08:20	155.4	↑6.2
4/20 08:30	161.8	↑6.4
4/20 08:40	168.1	↑6.3
4/20 08:50	174.4	↑6.3
4/20 09:00	180.6	↑6.2
4/20 09:10	186.7	↑6.1
4/20 09:20	192.5	↑5.8
4/20 09:30	198.1	↑5.6
4/20 09:40	203.5	↑5.4
4/20 09:50	208.5	↑5.0
4/20 10:00	213.2	↑4.7
4/20 10:10	217.4	↑4.2
4/20 10:20	221.2	↑3.8
4/20 10:30	224.6	↑3.4
4/20 10:40	227.4	↑2.8
4/20 10:50	229.7	↑2.3
4/20 11:00	231.5	↑1.8
4/20 11:10	232.7	↑1.2
4/20 11:20	233.4	↑0.7	満潮
4/20 11:30	233.4	0
4/20 11:40	232.9	↓-0.5
4/20 11:50	231.8	↓-1.1
4/20 12:00	230.1	↓-1.7
4/20 12:10	227.8	↓-2.3
4/20 12:20	224.9	↓-2.9
4/20 12:30	221.5	↓-3.4
4/20 12:40	217.5	↓-4.0
4/20 12:50	213.0	↓-4.5
4/20 13:00	208.1	↓-4.9
4/20 13:10	202.7	↓-5.4
4/20 13:20	196.8	↓-5.9
4/20 13:30	190.6	↓-6.2
4/20 13:40	184.0	↓-6.6
4/20 13:50	177.1	↓-6.9
4/20 14:00	170.0	↓-7.1
4/20 14:10	162.6	↓-7.4
4/20 14:20	155.1	↓-7.5
4/20 14:30	147.4	↓-7.7
4/20 14:40	139.7	↓-7.7
4/20 14:50	131.9	↓-7.8	最大潮位差
4/20 15:00	124.2	↓-7.7
4/20 15:10	116.5	↓-7.7
4/20 15:20	109.0	↓-7.5
4/20 15:30	101.6	↓-7.4
4/20 15:40	94.5	↓-7.1
4/20 15:50	87.6	↓-6.9
4/20 16:00	81.0	↓-6.6
4/20 16:10	74.8	↓-6.2
4/20 16:20	68.9	↓-5.9
4/20 16:30	63.5	↓-5.4
4/20 16:40	58.6	↓-4.9
4/20 16:50	54.1	↓-4.5
4/20 17:00	50.1	↓-4.0
4/20 17:10	46.7	↓-3.4
4/20 17:20	43.9	↓-2.8
4/20 17:30	41.6	↓-2.3
4/20 17:40	39.9	↓-1.7
4/20 17:50	38.8	↓-1.1
4/20 18:00	38.3	↓-0.5	干潮
4/20 18:10	38.4	↑0.1
4/20 18:20	39.1	↑0.7
4/20 18:30	40.3	↑1.2
4/20 18:40	42.2	↑1.9
4/20 18:50	44.6	↑2.4
4/20 19:00	47.6	↑3.0
4/20 19:10	51.1	↑3.5
4/20 19:20	55.0	↑3.9
4/20 19:30	59.5	↑4.5
4/20 19:40	64.4	↑4.9
4/20 19:50	69.6	↑5.2
4/20 20:00	75.3	↑5.7
4/20 20:10	81.2	↑5.9
4/20 20:20	87.5	↑6.3
4/20 20:30	94.0	↑6.5
4/20 20:40	100.7	↑6.7
4/20 20:50	107.5	↑6.8
4/20 21:00	114.4	↑6.9
4/20 21:10	121.4	↑7.0
4/20 21:20	128.5	↑7.1
4/20 21:30	135.4	↑6.9
4/20 21:40	142.4	↑7.0
4/20 21:50	149.1	↑6.7
4/20 22:00	155.8	↑6.7
4/20 22:10	162.2	↑6.4
4/20 22:20	168.4	↑6.2
4/20 22:30	174.3	↑5.9
4/20 22:40	179.9	↑5.6
4/20 22:50	185.1	↑5.2
4/20 23:00	190.0	↑4.9
4/20 23:10	194.4	↑4.4
4/20 23:20	198.4	↑4.0
4/20 23:30	202.0	↑3.6
4/20 23:40	205.1	↑3.1
4/20 23:50	207.8	↑2.7