20 (木)	06:17	12:27	18:26	-
	223cm	87cm	218cm	-
若潮 出 05:47 入 18:58 出 03:08 入 14:52

志々伎湾（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	71.9	↑0.5
4/20 00:10	72.9	↑1.0
4/20 00:20	74.3	↑1.4
4/20 00:30	76.2	↑1.9
4/20 00:40	78.5	↑2.3
4/20 00:50	81.3	↑2.8
4/20 01:00	84.5	↑3.2
4/20 01:10	88.0	↑3.5
4/20 01:20	92.0	↑4.0
4/20 01:30	96.3	↑4.3
4/20 01:40	100.9	↑4.6
4/20 01:50	105.8	↑4.9
4/20 02:00	111.0	↑5.2
4/20 02:10	116.4	↑5.4
4/20 02:20	122.0	↑5.6
4/20 02:30	127.8	↑5.8
4/20 02:40	133.7	↑5.9
4/20 02:50	139.7	↑6.0
4/20 03:00	145.8	↑6.1
4/20 03:10	151.8	↑6.0
4/20 03:20	157.9	↑6.1
4/20 03:30	163.8	↑5.9
4/20 03:40	169.7	↑5.9
4/20 03:50	175.4	↑5.7
4/20 04:00	181.0	↑5.6
4/20 04:10	186.3	↑5.3
4/20 04:20	191.3	↑5.0
4/20 04:30	196.1	↑4.8
4/20 04:40	200.6	↑4.5
4/20 04:50	204.7	↑4.1
4/20 05:00	208.4	↑3.7
4/20 05:10	211.7	↑3.3
4/20 05:20	214.6	↑2.9
4/20 05:30	217.1	↑2.5
4/20 05:40	219.1	↑2.0
4/20 05:50	220.6	↑1.5
4/20 06:00	221.6	↑1.0
4/20 06:10	222.2	↑0.6	満潮
4/20 06:20	222.3	↑0.1
4/20 06:30	221.8	↓-0.5
4/20 06:40	220.9	↓-0.9
4/20 06:50	219.5	↓-1.4
4/20 07:00	217.7	↓-1.8
4/20 07:10	215.4	↓-2.3
4/20 07:20	212.6	↓-2.8
4/20 07:30	209.4	↓-3.2
4/20 07:40	205.9	↓-3.5
4/20 07:50	201.9	↓-4.0
4/20 08:00	197.7	↓-4.2
4/20 08:10	193.1	↓-4.6
4/20 08:20	188.2	↓-4.9
4/20 08:30	183.1	↓-5.1
4/20 08:40	177.8	↓-5.3
4/20 08:50	172.3	↓-5.5
4/20 09:00	166.7	↓-5.6
4/20 09:10	161.0	↓-5.7
4/20 09:20	155.2	↓-5.8
4/20 09:30	149.5	↓-5.7
4/20 09:40	143.7	↓-5.8
4/20 09:50	138.1	↓-5.6
4/20 10:00	132.6	↓-5.5
4/20 10:10	127.2	↓-5.4
4/20 10:20	122.0	↓-5.2
4/20 10:30	117.1	↓-4.9
4/20 10:40	112.4	↓-4.7
4/20 10:50	108.1	↓-4.3
4/20 11:00	104.0	↓-4.1
4/20 11:10	100.4	↓-3.6
4/20 11:20	97.1	↓-3.3
4/20 11:30	94.2	↓-2.9
4/20 11:40	91.8	↓-2.4
4/20 11:50	89.8	↓-2.0
4/20 12:00	88.3	↓-1.5
4/20 12:10	87.3	↓-1.0
4/20 12:20	86.8	↓-0.5	干潮
4/20 12:30	86.7	↓-0.1
4/20 12:40	87.2	↑0.5
4/20 12:50	88.1	↑0.9
4/20 13:00	89.5	↑1.4
4/20 13:10	91.4	↑1.9
4/20 13:20	93.7	↑2.3
4/20 13:30	96.5	↑2.8
4/20 13:40	99.7	↑3.2
4/20 13:50	103.3	↑3.6
4/20 14:00	107.2	↑3.9
4/20 14:10	111.5	↑4.3
4/20 14:20	116.1	↑4.6
4/20 14:30	121.0	↑4.9
4/20 14:40	126.1	↑5.1
4/20 14:50	131.4	↑5.3
4/20 15:00	136.9	↑5.5
4/20 15:10	142.5	↑5.6
4/20 15:20	148.1	↑5.6
4/20 15:30	153.8	↑5.7
4/20 15:40	159.5	↑5.7
4/20 15:50	165.2	↑5.7
4/20 16:00	170.7	↑5.5
4/20 16:10	176.1	↑5.4
4/20 16:20	181.3	↑5.2
4/20 16:30	186.3	↑5.0
4/20 16:40	191.0	↑4.7
4/20 16:50	195.5	↑4.5
4/20 17:00	199.6	↑4.1
4/20 17:10	203.3	↑3.7
4/20 17:20	206.7	↑3.4
4/20 17:30	209.6	↑2.9
4/20 17:40	212.0	↑2.4
4/20 17:50	214.0	↑2.0
4/20 18:00	215.6	↑1.6
4/20 18:10	216.6	↑1.0
4/20 18:20	217.1	↑0.5	満潮
4/20 18:30	217.1	0
4/20 18:40	216.5	↓-0.6
4/20 18:50	215.5	↓-1.0
4/20 19:00	213.9	↓-1.6
4/20 19:10	211.8	↓-2.1
4/20 19:20	209.2	↓-2.6
4/20 19:30	206.2	↓-3.0
4/20 19:40	202.6	↓-3.6
4/20 19:50	198.7	↓-3.9
4/20 20:00	194.3	↓-4.4
4/20 20:10	189.5	↓-4.8
4/20 20:20	184.4	↓-5.1
4/20 20:30	179.0	↓-5.4
4/20 20:40	173.3	↓-5.7
4/20 20:50	167.3	↓-6.0
4/20 21:00	161.1	↓-6.2
4/20 21:10	154.8	↓-6.3
4/20 21:20	148.4	↓-6.4
4/20 21:30	141.9	↓-6.5	最大潮位差
4/20 21:40	135.4	↓-6.5	最大潮位差
4/20 21:50	128.9	↓-6.5	最大潮位差
4/20 22:00	122.5	↓-6.4
4/20 22:10	116.2	↓-6.3
4/20 22:20	110.1	↓-6.1
4/20 22:30	104.1	↓-6.0
4/20 22:40	98.5	↓-5.6
4/20 22:50	93.1	↓-5.4
4/20 23:00	88.1	↓-5.0
4/20 23:10	83.4	↓-4.7
4/20 23:20	79.2	↓-4.2
4/20 23:30	75.3	↓-3.9
4/20 23:40	72.0	↓-3.3
4/20 23:50	69.2	↓-2.8