20 (木)	06:31	00:10	18:48	12:42
	164cm	51cm	166cm	51cm
若潮 出 05:46 入 18:59 出 03:09 入 14:51

万関瀬戸（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	50.5	↓-0.4	干潮
4/20 00:10	50.3	↓-0.2	干潮
4/20 00:20	50.6	↑0.3
4/20 00:30	51.2	↑0.6
4/20 00:40	52.1	↑0.9
4/20 00:50	53.5	↑1.4
4/20 01:00	55.1	↑1.6
4/20 01:10	57.2	↑2.1
4/20 01:20	59.5	↑2.3
4/20 01:30	62.2	↑2.7
4/20 01:40	65.2	↑3.0
4/20 01:50	68.5	↑3.3
4/20 02:00	72.0	↑3.5
4/20 02:10	75.7	↑3.7
4/20 02:20	79.7	↑4.0
4/20 02:30	83.9	↑4.2
4/20 02:40	88.2	↑4.3
4/20 02:50	92.7	↑4.5
4/20 03:00	97.2	↑4.5
4/20 03:10	101.9	↑4.7
4/20 03:20	106.5	↑4.6
4/20 03:30	111.2	↑4.7
4/20 03:40	115.9	↑4.7
4/20 03:50	120.5	↑4.6
4/20 04:00	125.0	↑4.5
4/20 04:10	129.4	↑4.4
4/20 04:20	133.6	↑4.2
4/20 04:30	137.7	↑4.1
4/20 04:40	141.5	↑3.8
4/20 04:50	145.1	↑3.6
4/20 05:00	148.5	↑3.4
4/20 05:10	151.6	↑3.1
4/20 05:20	154.3	↑2.7
4/20 05:30	156.8	↑2.5
4/20 05:40	158.9	↑2.1
4/20 05:50	160.6	↑1.7
4/20 06:00	162.0	↑1.4
4/20 06:10	163.0	↑1.0
4/20 06:20	163.5	↑0.5
4/20 06:30	163.7	↑0.2	満潮
4/20 06:40	163.5	↓-0.2
4/20 06:50	162.9	↓-0.6
4/20 07:00	162.0	↓-0.9
4/20 07:10	160.6	↓-1.4
4/20 07:20	158.8	↓-1.8
4/20 07:30	156.7	↓-2.1
4/20 07:40	154.2	↓-2.5
4/20 07:50	151.4	↓-2.8
4/20 08:00	148.3	↓-3.1
4/20 08:10	144.9	↓-3.4
4/20 08:20	141.2	↓-3.7
4/20 08:30	137.3	↓-3.9
4/20 08:40	133.1	↓-4.2
4/20 08:50	128.8	↓-4.3
4/20 09:00	124.3	↓-4.5
4/20 09:10	119.7	↓-4.6
4/20 09:20	114.9	↓-4.8
4/20 09:30	110.2	↓-4.7
4/20 09:40	105.4	↓-4.8
4/20 09:50	100.6	↓-4.8
4/20 10:00	95.8	↓-4.8
4/20 10:10	91.2	↓-4.6
4/20 10:20	86.6	↓-4.6
4/20 10:30	82.2	↓-4.4
4/20 10:40	78.0	↓-4.2
4/20 10:50	74.0	↓-4.0
4/20 11:00	70.2	↓-3.8
4/20 11:10	66.6	↓-3.6
4/20 11:20	63.4	↓-3.2
4/20 11:30	60.5	↓-2.9
4/20 11:40	57.9	↓-2.6
4/20 11:50	55.6	↓-2.3
4/20 12:00	53.8	↓-1.8
4/20 12:10	52.3	↓-1.5
4/20 12:20	51.2	↓-1.1
4/20 12:30	50.5	↓-0.7
4/20 12:40	50.3	↓-0.2	干潮
4/20 12:50	50.4	↑0.1
4/20 13:00	51.0	↑0.6
4/20 13:10	51.9	↑0.9
4/20 13:20	53.3	↑1.4
4/20 13:30	55.1	↑1.8
4/20 13:40	57.2	↑2.1
4/20 13:50	59.8	↑2.6
4/20 14:00	62.6	↑2.8
4/20 14:10	65.8	↑3.2
4/20 14:20	69.3	↑3.5
4/20 14:30	73.1	↑3.8
4/20 14:40	77.2	↑4.1
4/20 14:50	81.4	↑4.2
4/20 15:00	85.9	↑4.5
4/20 15:10	90.5	↑4.6
4/20 15:20	95.3	↑4.8
4/20 15:30	100.1	↑4.8
4/20 15:40	105.0	↑4.9
4/20 15:50	110.0	↑5.0
4/20 16:00	114.9	↑4.9
4/20 16:10	119.8	↑4.9
4/20 16:20	124.5	↑4.7
4/20 16:30	129.2	↑4.7
4/20 16:40	133.7	↑4.5
4/20 16:50	138.0	↑4.3
4/20 17:00	142.1	↑4.1
4/20 17:10	146.0	↑3.9
4/20 17:20	149.5	↑3.5
4/20 17:30	152.8	↑3.3
4/20 17:40	155.7	↑2.9
4/20 17:50	158.3	↑2.6
4/20 18:00	160.5	↑2.2
4/20 18:10	162.3	↑1.8
4/20 18:20	163.7	↑1.4
4/20 18:30	164.6	↑0.9
4/20 18:40	165.2	↑0.6	満潮
4/20 18:50	165.3	↑0.1
4/20 19:00	164.9	↓-0.4
4/20 19:10	164.1	↓-0.8
4/20 19:20	162.9	↓-1.2
4/20 19:30	161.3	↓-1.6
4/20 19:40	159.2	↓-2.1
4/20 19:50	156.8	↓-2.4
4/20 20:00	153.9	↓-2.9
4/20 20:10	150.7	↓-3.2
4/20 20:20	147.1	↓-3.6
4/20 20:30	143.3	↓-3.8
4/20 20:40	139.1	↓-4.2
4/20 20:50	134.6	↓-4.5
4/20 21:00	130.0	↓-4.6
4/20 21:10	125.1	↓-4.9
4/20 21:20	120.0	↓-5.1
4/20 21:30	114.8	↓-5.2
4/20 21:40	109.6	↓-5.2
4/20 21:50	104.2	↓-5.4	最大潮位差
4/20 22:00	98.9	↓-5.3
4/20 22:10	93.5	↓-5.4	最大潮位差
4/20 22:20	88.3	↓-5.2
4/20 22:30	83.1	↓-5.2
4/20 22:40	78.1	↓-5.0
4/20 22:50	73.2	↓-4.9
4/20 23:00	68.5	↓-4.7
4/20 23:10	64.1	↓-4.4
4/20 23:20	60.0	↓-4.1
4/20 23:30	56.1	↓-3.9
4/20 23:40	52.6	↓-3.5
4/20 23:50	49.5	↓-3.1