20 (木)	06:40	00:18	18:58	12:53
	171cm	56cm	171cm	54cm
若潮 出 05:46 入 18:59 出 03:09 入 14:51

大山浦（長崎）2028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	55.7	↓-0.8
4/20 00:10	55.3	↓-0.4	干潮
4/20 00:20	55.3	0
4/20 00:30	55.6	↑0.3
4/20 00:40	56.2	↑0.6
4/20 00:50	57.3	↑1.1
4/20 01:00	58.7	↑1.4
4/20 01:10	60.5	↑1.8
4/20 01:20	62.6	↑2.1
4/20 01:30	65.0	↑2.4
4/20 01:40	67.8	↑2.8
4/20 01:50	70.8	↑3.0
4/20 02:00	74.2	↑3.4
4/20 02:10	77.8	↑3.6
4/20 02:20	81.6	↑3.8
4/20 02:30	85.7	↑4.1
4/20 02:40	89.9	↑4.2
4/20 02:50	94.3	↑4.4
4/20 03:00	98.9	↑4.6
4/20 03:10	103.5	↑4.6
4/20 03:20	108.2	↑4.7
4/20 03:30	113.0	↑4.8
4/20 03:40	117.7	↑4.7
4/20 03:50	122.4	↑4.7
4/20 04:00	127.1	↑4.7
4/20 04:10	131.7	↑4.6
4/20 04:20	136.1	↑4.4
4/20 04:30	140.4	↑4.3
4/20 04:40	144.5	↑4.1
4/20 04:50	148.4	↑3.9
4/20 05:00	152.0	↑3.6
4/20 05:10	155.4	↑3.4
4/20 05:20	158.5	↑3.1
4/20 05:30	161.3	↑2.8
4/20 05:40	163.8	↑2.5
4/20 05:50	165.8	↑2.0
4/20 06:00	167.6	↑1.8
4/20 06:10	168.9	↑1.3
4/20 06:20	169.9	↑1.0
4/20 06:30	170.4	↑0.5	満潮
4/20 06:40	170.6	↑0.2	満潮
4/20 06:50	170.4	↓-0.2
4/20 07:00	169.7	↓-0.7
4/20 07:10	168.7	↓-1.0
4/20 07:20	167.2	↓-1.5
4/20 07:30	165.4	↓-1.8
4/20 07:40	163.2	↓-2.2
4/20 07:50	160.6	↓-2.6
4/20 08:00	157.7	↓-2.9
4/20 08:10	154.5	↓-3.2
4/20 08:20	151.0	↓-3.5
4/20 08:30	147.2	↓-3.8
4/20 08:40	143.2	↓-4.0
4/20 08:50	138.9	↓-4.3
4/20 09:00	134.4	↓-4.5
4/20 09:10	129.8	↓-4.6
4/20 09:20	125.1	↓-4.7
4/20 09:30	120.2	↓-4.9
4/20 09:40	115.4	↓-4.8
4/20 09:50	110.4	↓-5.0
4/20 10:00	105.5	↓-4.9
4/20 10:10	100.7	↓-4.8
4/20 10:20	95.9	↓-4.8
4/20 10:30	91.2	↓-4.7
4/20 10:40	86.7	↓-4.5
4/20 10:50	82.3	↓-4.4
4/20 11:00	78.2	↓-4.1
4/20 11:10	74.3	↓-3.9
4/20 11:20	70.7	↓-3.6
4/20 11:30	67.4	↓-3.3
4/20 11:40	64.4	↓-3.0
4/20 11:50	61.7	↓-2.7
4/20 12:00	59.4	↓-2.3
4/20 12:10	57.5	↓-1.9
4/20 12:20	56.0	↓-1.5
4/20 12:30	54.8	↓-1.2
4/20 12:40	54.1	↓-0.7
4/20 12:50	53.8	↓-0.3	干潮
4/20 13:00	54.0	↑0.2
4/20 13:10	54.5	↑0.5
4/20 13:20	55.5	↑1.0
4/20 13:30	56.9	↑1.4
4/20 13:40	58.7	↑1.8
4/20 13:50	60.9	↑2.2
4/20 14:00	63.4	↑2.5
4/20 14:10	66.3	↑2.9
4/20 14:20	69.6	↑3.3
4/20 14:30	73.2	↑3.6
4/20 14:40	77.0	↑3.8
4/20 14:50	81.1	↑4.1
4/20 15:00	85.5	↑4.4
4/20 15:10	90.0	↑4.5
4/20 15:20	94.7	↑4.7
4/20 15:30	99.6	↑4.9
4/20 15:40	104.5	↑4.9
4/20 15:50	109.5	↑5.0
4/20 16:00	114.5	↑5.0
4/20 16:10	119.5	↑5.0
4/20 16:20	124.5	↑5.0
4/20 16:30	129.4	↑4.9
4/20 16:40	134.1	↑4.7
4/20 16:50	138.7	↑4.6
4/20 17:00	143.1	↑4.4
4/20 17:10	147.3	↑4.2
4/20 17:20	151.2	↑3.9
4/20 17:30	154.8	↑3.6
4/20 17:40	158.1	↑3.3
4/20 17:50	161.1	↑3.0
4/20 18:00	163.7	↑2.6
4/20 18:10	165.9	↑2.2
4/20 18:20	167.7	↑1.8
4/20 18:30	169.1	↑1.4
4/20 18:40	170.1	↑1.0
4/20 18:50	170.6	↑0.5	満潮
4/20 19:00	170.7	↑0.1
4/20 19:10	170.3	↓-0.4
4/20 19:20	169.5	↓-0.8
4/20 19:30	168.3	↓-1.2
4/20 19:40	166.6	↓-1.7
4/20 19:50	164.5	↓-2.1
4/20 20:00	162.0	↓-2.5
4/20 20:10	159.1	↓-2.9
4/20 20:20	155.8	↓-3.3
4/20 20:30	152.1	↓-3.7
4/20 20:40	148.2	↓-3.9
4/20 20:50	143.9	↓-4.3
4/20 21:00	139.4	↓-4.5
4/20 21:10	134.6	↓-4.8
4/20 21:20	129.6	↓-5.0
4/20 21:30	124.5	↓-5.1
4/20 21:40	119.2	↓-5.3
4/20 21:50	113.8	↓-5.4
4/20 22:00	108.4	↓-5.4
4/20 22:10	103.0	↓-5.4
4/20 22:20	97.5	↓-5.5	最大潮位差
4/20 22:30	92.2	↓-5.3
4/20 22:40	86.9	↓-5.3
4/20 22:50	81.8	↓-5.1
4/20 23:00	76.9	↓-4.9
4/20 23:10	72.2	↓-4.7
4/20 23:20	67.7	↓-4.5
4/20 23:30	63.6	↓-4.1
4/20 23:40	59.7	↓-3.9
4/20 23:50	56.2	↓-3.5