20 (木)	07:00	00:31	19:03	13:05
	174cm	63cm	170cm	72cm
若潮 出 05:46 入 18:57 出 03:08 入 14:51

郷ノ浦／壱岐（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	63.6	↓-1.2
4/20 00:10	62.8	↓-0.8
4/20 00:20	62.2	↓-0.6
4/20 00:30	62.0	↓-0.2	干潮
4/20 00:40	62.2	↑0.2
4/20 00:50	62.7	↑0.5
4/20 01:00	63.6	↑0.9
4/20 01:10	64.8	↑1.2
4/20 01:20	66.3	↑1.5
4/20 01:30	68.2	↑1.9
4/20 01:40	70.3	↑2.1
4/20 01:50	72.8	↑2.5
4/20 02:00	75.6	↑2.8
4/20 02:10	78.6	↑3.0
4/20 02:20	81.9	↑3.3
4/20 02:30	85.5	↑3.6
4/20 02:40	89.2	↑3.7
4/20 02:50	93.1	↑3.9
4/20 03:00	97.2	↑4.1
4/20 03:10	101.5	↑4.3
4/20 03:20	105.8	↑4.3
4/20 03:30	110.2	↑4.4
4/20 03:40	114.7	↑4.5
4/20 03:50	119.2	↑4.5
4/20 04:00	123.7	↑4.5
4/20 04:10	128.2	↑4.5
4/20 04:20	132.6	↑4.4
4/20 04:30	136.9	↑4.3
4/20 04:40	141.1	↑4.2
4/20 04:50	145.1	↑4.0
4/20 05:00	148.9	↑3.8
4/20 05:10	152.6	↑3.7
4/20 05:20	156.0	↑3.4
4/20 05:30	159.2	↑3.2
4/20 05:40	162.1	↑2.9
4/20 05:50	164.7	↑2.6
4/20 06:00	167.0	↑2.3
4/20 06:10	169.0	↑2.0
4/20 06:20	170.6	↑1.6
4/20 06:30	171.8	↑1.2
4/20 06:40	172.7	↑0.9
4/20 06:50	173.3	↑0.6	満潮
4/20 07:00	173.4	↑0.1	満潮
4/20 07:10	173.2	↓-0.2
4/20 07:20	172.6	↓-0.6
4/20 07:30	171.6	↓-1.0
4/20 07:40	170.3	↓-1.3
4/20 07:50	168.6	↓-1.7
4/20 08:00	166.5	↓-2.1
4/20 08:10	164.1	↓-2.4
4/20 08:20	161.5	↓-2.6
4/20 08:30	158.5	↓-3.0
4/20 08:40	155.2	↓-3.3
4/20 08:50	151.8	↓-3.4
4/20 09:00	148.1	↓-3.7
4/20 09:10	144.2	↓-3.9
4/20 09:20	140.1	↓-4.1
4/20 09:30	135.9	↓-4.2
4/20 09:40	131.6	↓-4.3
4/20 09:50	127.3	↓-4.3
4/20 10:00	122.9	↓-4.4
4/20 10:10	118.5	↓-4.4
4/20 10:20	114.2	↓-4.3
4/20 10:30	109.9	↓-4.3
4/20 10:40	105.7	↓-4.2
4/20 10:50	101.6	↓-4.1
4/20 11:00	97.7	↓-3.9
4/20 11:10	94.0	↓-3.7
4/20 11:20	90.5	↓-3.5
4/20 11:30	87.2	↓-3.3
4/20 11:40	84.2	↓-3.0
4/20 11:50	81.5	↓-2.7
4/20 12:00	79.1	↓-2.4
4/20 12:10	77.0	↓-2.1
4/20 12:20	75.3	↓-1.7
4/20 12:30	73.8	↓-1.5
4/20 12:40	72.8	↓-1.0
4/20 12:50	72.1	↓-0.7
4/20 13:00	71.7	↓-0.4	干潮
4/20 13:10	71.8	↑0.1
4/20 13:20	72.2	↑0.4
4/20 13:30	72.9	↑0.7
4/20 13:40	74.0	↑1.1
4/20 13:50	75.5	↑1.5
4/20 14:00	77.3	↑1.8
4/20 14:10	79.4	↑2.1
4/20 14:20	81.8	↑2.4
4/20 14:30	84.5	↑2.7
4/20 14:40	87.5	↑3.0
4/20 14:50	90.7	↑3.2
4/20 15:00	94.2	↑3.5
4/20 15:10	97.8	↑3.6
4/20 15:20	101.7	↑3.9
4/20 15:30	105.6	↑3.9
4/20 15:40	109.7	↑4.1
4/20 15:50	113.9	↑4.2
4/20 16:00	118.1	↑4.2
4/20 16:10	122.4	↑4.3
4/20 16:20	126.6	↑4.2
4/20 16:30	130.9	↑4.3
4/20 16:40	135.0	↑4.1
4/20 16:50	139.0	↑4.0
4/20 17:00	142.9	↑3.9
4/20 17:10	146.7	↑3.8
4/20 17:20	150.2	↑3.5
4/20 17:30	153.5	↑3.3
4/20 17:40	156.6	↑3.1
4/20 17:50	159.4	↑2.8
4/20 18:00	161.8	↑2.4
4/20 18:10	164.0	↑2.2
4/20 18:20	165.8	↑1.8
4/20 18:30	167.3	↑1.5
4/20 18:40	168.3	↑1.0
4/20 18:50	169.0	↑0.7
4/20 19:00	169.3	↑0.3	満潮
4/20 19:10	169.2	↓-0.1
4/20 19:20	168.6	↓-0.6
4/20 19:30	167.7	↓-0.9
4/20 19:40	166.3	↓-1.4
4/20 19:50	164.6	↓-1.7
4/20 20:00	162.4	↓-2.2
4/20 20:10	159.9	↓-2.5
4/20 20:20	157.1	↓-2.8
4/20 20:30	153.9	↓-3.2
4/20 20:40	150.4	↓-3.5
4/20 20:50	146.6	↓-3.8
4/20 21:00	142.5	↓-4.1
4/20 21:10	138.2	↓-4.3
4/20 21:20	133.7	↓-4.5
4/20 21:30	129.0	↓-4.7
4/20 21:40	124.2	↓-4.8
4/20 21:50	119.3	↓-4.9
4/20 22:00	114.4	↓-4.9
4/20 22:10	109.4	↓-5.0	最大潮位差
4/20 22:20	104.4	↓-5.0	最大潮位差
4/20 22:30	99.5	↓-4.9
4/20 22:40	94.7	↓-4.8
4/20 22:50	90.0	↓-4.7
4/20 23:00	85.5	↓-4.5
4/20 23:10	81.2	↓-4.3
4/20 23:20	77.1	↓-4.1
4/20 23:30	73.3	↓-3.8
4/20 23:40	69.7	↓-3.6
4/20 23:50	66.5	↓-3.2