20 (水)	05:32	11:34	17:33	23:50
	194cm	59cm	193cm	37cm
大潮 出 05:28 入 17:42 出 06:59 入 18:14

第一海堡（千葉）2028年09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
9/20 00:00	49.8	↑1.9
9/20 00:10	52.2	↑2.4
9/20 00:20	55.1	↑2.9
9/20 00:30	58.5	↑3.4
9/20 00:40	62.2	↑3.7
9/20 00:50	66.4	↑4.2
9/20 01:00	71.0	↑4.6
9/20 01:10	75.9	↑4.9
9/20 01:20	81.1	↑5.2
9/20 01:30	86.6	↑5.5
9/20 01:40	92.3	↑5.7
9/20 01:50	98.2	↑5.9
9/20 02:00	104.3	↑6.1
9/20 02:10	110.4	↑6.1
9/20 02:20	116.7	↑6.3
9/20 02:30	122.9	↑6.2
9/20 02:40	129.2	↑6.3
9/20 02:50	135.3	↑6.1
9/20 03:00	141.4	↑6.1
9/20 03:10	147.2	↑5.8
9/20 03:20	152.9	↑5.7
9/20 03:30	158.4	↑5.5
9/20 03:40	163.5	↑5.1
9/20 03:50	168.4	↑4.9
9/20 04:00	172.9	↑4.5
9/20 04:10	177.0	↑4.1
9/20 04:20	180.7	↑3.7
9/20 04:30	184.0	↑3.3
9/20 04:40	186.9	↑2.9
9/20 04:50	189.2	↑2.3
9/20 05:00	191.1	↑1.9
9/20 05:10	192.4	↑1.3
9/20 05:20	193.2	↑0.8
9/20 05:30	193.6	↑0.4	満潮
9/20 05:40	193.4	↓-0.2
9/20 05:50	192.6	↓-0.8
9/20 06:00	191.4	↓-1.2
9/20 06:10	189.7	↓-1.7
9/20 06:20	187.5	↓-2.2
9/20 06:30	184.8	↓-2.7
9/20 06:40	181.7	↓-3.1
9/20 06:50	178.2	↓-3.5
9/20 07:00	174.2	↓-4.0
9/20 07:10	169.9	↓-4.3
9/20 07:20	165.3	↓-4.6
9/20 07:30	160.4	↓-4.9
9/20 07:40	155.2	↓-5.2
9/20 07:50	149.8	↓-5.4
9/20 08:00	144.2	↓-5.6
9/20 08:10	138.5	↓-5.7
9/20 08:20	132.6	↓-5.9
9/20 08:30	126.8	↓-5.8
9/20 08:40	120.9	↓-5.9
9/20 08:50	115.1	↓-5.8
9/20 09:00	109.3	↓-5.8
9/20 09:10	103.7	↓-5.6
9/20 09:20	98.2	↓-5.5
9/20 09:30	93.0	↓-5.2
9/20 09:40	88.0	↓-5.0
9/20 09:50	83.3	↓-4.7
9/20 10:00	78.9	↓-4.4
9/20 10:10	74.8	↓-4.1
9/20 10:20	71.2	↓-3.6
9/20 10:30	67.9	↓-3.3
9/20 10:40	65.1	↓-2.8
9/20 10:50	62.8	↓-2.3
9/20 11:00	60.9	↓-1.9
9/20 11:10	59.5	↓-1.4
9/20 11:20	58.6	↓-0.9
9/20 11:30	58.2	↓-0.4	干潮
9/20 11:40	58.3	↑0.1
9/20 11:50	58.9	↑0.6
9/20 12:00	60.0	↑1.1
9/20 12:10	61.6	↑1.6
9/20 12:20	63.7	↑2.1
9/20 12:30	66.3	↑2.6
9/20 12:40	69.3	↑3.0
9/20 12:50	72.7	↑3.4
9/20 13:00	76.5	↑3.8
9/20 13:10	80.7	↑4.2
9/20 13:20	85.3	↑4.6
9/20 13:30	90.1	↑4.8
9/20 13:40	95.2	↑5.1
9/20 13:50	100.5	↑5.3
9/20 14:00	106.1	↑5.6
9/20 14:10	111.7	↑5.6
9/20 14:20	117.5	↑5.8
9/20 14:30	123.3	↑5.8
9/20 14:40	129.2	↑5.9
9/20 14:50	135.0	↑5.8
9/20 15:00	140.7	↑5.7
9/20 15:10	146.4	↑5.7
9/20 15:20	151.8	↑5.4
9/20 15:30	157.1	↑5.3
9/20 15:40	162.1	↑5.0
9/20 15:50	166.9	↑4.8
9/20 16:00	171.3	↑4.4
9/20 16:10	175.4	↑4.1
9/20 16:20	179.1	↑3.7
9/20 16:30	182.3	↑3.2
9/20 16:40	185.2	↑2.9
9/20 16:50	187.6	↑2.4
9/20 17:00	189.5	↑1.9
9/20 17:10	190.9	↑1.4
9/20 17:20	191.7	↑0.8
9/20 17:30	192.1	↑0.4	満潮
9/20 17:40	192.0	↓-0.1
9/20 17:50	191.3	↓-0.7
9/20 18:00	190.1	↓-1.2
9/20 18:10	188.3	↓-1.8
9/20 18:20	186.1	↓-2.2
9/20 18:30	183.4	↓-2.7
9/20 18:40	180.2	↓-3.2
9/20 18:50	176.5	↓-3.7
9/20 19:00	172.4	↓-4.1
9/20 19:10	167.9	↓-4.5
9/20 19:20	163.1	↓-4.8
9/20 19:30	157.8	↓-5.3
9/20 19:40	152.3	↓-5.5
9/20 19:50	146.5	↓-5.8
9/20 20:00	140.5	↓-6.0
9/20 20:10	134.3	↓-6.2
9/20 20:20	128.0	↓-6.3
9/20 20:30	121.6	↓-6.4
9/20 20:40	115.1	↓-6.5	最大潮位差
9/20 20:50	108.6	↓-6.5	最大潮位差
9/20 21:00	102.1	↓-6.5	最大潮位差
9/20 21:10	95.8	↓-6.3
9/20 21:20	89.5	↓-6.3
9/20 21:30	83.4	↓-6.1
9/20 21:40	77.6	↓-5.8
9/20 21:50	71.9	↓-5.7
9/20 22:00	66.6	↓-5.3
9/20 22:10	61.6	↓-5.0
9/20 22:20	57.0	↓-4.6
9/20 22:30	52.8	↓-4.2
9/20 22:40	49.0	↓-3.8
9/20 22:50	45.7	↓-3.3
9/20 23:00	42.8	↓-2.9
9/20 23:10	40.4	↓-2.4
9/20 23:20	38.6	↓-1.8
9/20 23:30	37.3	↓-1.3
9/20 23:40	36.5	↓-0.8	干潮
9/20 23:50	36.3	↓-0.2	干潮