20 (水)	05:15	11:16	17:13	23:36
	165cm	48cm	165cm	21cm
大潮 出 05:26 入 17:39 出 06:56 入 18:11

上総勝浦（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	39.5	↑2.6
9/20 00:10	42.6	↑3.1
9/20 00:20	46.0	↑3.4
9/20 00:30	49.8	↑3.8
9/20 00:40	53.9	↑4.1
9/20 00:50	58.3	↑4.4
9/20 01:00	63.0	↑4.7
9/20 01:10	67.9	↑4.9
9/20 01:20	73.1	↑5.2
9/20 01:30	78.4	↑5.3
9/20 01:40	83.8	↑5.4
9/20 01:50	89.3	↑5.5
9/20 02:00	94.9	↑5.6
9/20 02:10	100.5	↑5.6
9/20 02:20	106.1	↑5.6
9/20 02:30	111.6	↑5.5
9/20 02:40	117.1	↑5.5
9/20 02:50	122.3	↑5.2
9/20 03:00	127.5	↑5.2
9/20 03:10	132.4	↑4.9
9/20 03:20	137.0	↑4.6
9/20 03:30	141.4	↑4.4
9/20 03:40	145.5	↑4.1
9/20 03:50	149.3	↑3.8
9/20 04:00	152.7	↑3.4
9/20 04:10	155.7	↑3.0
9/20 04:20	158.3	↑2.6
9/20 04:30	160.5	↑2.2
9/20 04:40	162.3	↑1.8
9/20 04:50	163.6	↑1.3
9/20 05:00	164.5	↑0.9
9/20 05:10	164.9	↑0.4	満潮
9/20 05:20	164.8	↓-0.1
9/20 05:30	164.3	↓-0.5
9/20 05:40	163.4	↓-0.9
9/20 05:50	162.0	↓-1.4
9/20 06:00	160.2	↓-1.8
9/20 06:10	158.0	↓-2.2
9/20 06:20	155.4	↓-2.6
9/20 06:30	152.4	↓-3.0
9/20 06:40	149.1	↓-3.3
9/20 06:50	145.4	↓-3.7
9/20 07:00	141.5	↓-3.9
9/20 07:10	137.3	↓-4.2
9/20 07:20	132.8	↓-4.5
9/20 07:30	128.2	↓-4.6
9/20 07:40	123.4	↓-4.8
9/20 07:50	118.5	↓-4.9
9/20 08:00	113.4	↓-5.1
9/20 08:10	108.3	↓-5.1
9/20 08:20	103.2	↓-5.1
9/20 08:30	98.2	↓-5.0
9/20 08:40	93.2	↓-5.0
9/20 08:50	88.2	↓-5.0
9/20 09:00	83.5	↓-4.7
9/20 09:10	78.8	↓-4.7
9/20 09:20	74.4	↓-4.4
9/20 09:30	70.3	↓-4.1
9/20 09:40	66.4	↓-3.9
9/20 09:50	62.8	↓-3.6
9/20 10:00	59.6	↓-3.2
9/20 10:10	56.6	↓-3.0
9/20 10:20	54.1	↓-2.5
9/20 10:30	52.0	↓-2.1
9/20 10:40	50.3	↓-1.7
9/20 10:50	49.0	↓-1.3
9/20 11:00	48.1	↓-0.9
9/20 11:10	47.7	↓-0.4	干潮
9/20 11:20	47.7	0
9/20 11:30	48.2	↑0.5
9/20 11:40	49.1	↑0.9
9/20 11:50	50.4	↑1.3
9/20 12:00	52.2	↑1.8
9/20 12:10	54.3	↑2.1
9/20 12:20	56.9	↑2.6
9/20 12:30	59.8	↑2.9
9/20 12:40	63.1	↑3.3
9/20 12:50	66.8	↑3.7
9/20 13:00	70.7	↑3.9
9/20 13:10	74.9	↑4.2
9/20 13:20	79.3	↑4.4
9/20 13:30	83.9	↑4.6
9/20 13:40	88.8	↑4.9
9/20 13:50	93.7	↑4.9
9/20 14:00	98.8	↑5.1
9/20 14:10	103.9	↑5.1
9/20 14:20	109.0	↑5.1
9/20 14:30	114.1	↑5.1
9/20 14:40	119.2	↑5.1
9/20 14:50	124.2	↑5.0
9/20 15:00	129.0	↑4.8
9/20 15:10	133.7	↑4.7
9/20 15:20	138.1	↑4.4
9/20 15:30	142.3	↑4.2
9/20 15:40	146.3	↑4.0
9/20 15:50	149.9	↑3.6
9/20 16:00	153.2	↑3.3
9/20 16:10	156.1	↑2.9
9/20 16:20	158.7	↑2.6
9/20 16:30	160.8	↑2.1
9/20 16:40	162.5	↑1.7
9/20 16:50	163.7	↑1.2
9/20 17:00	164.5	↑0.8
9/20 17:10	164.8	↑0.3	満潮
9/20 17:20	164.6	↓-0.2
9/20 17:30	164.0	↓-0.6
9/20 17:40	162.9	↓-1.1
9/20 17:50	161.3	↓-1.6
9/20 18:00	159.3	↓-2.0
9/20 18:10	156.8	↓-2.5
9/20 18:20	153.9	↓-2.9
9/20 18:30	150.6	↓-3.3
9/20 18:40	146.9	↓-3.7
9/20 18:50	142.8	↓-4.1
9/20 19:00	138.4	↓-4.4
9/20 19:10	133.6	↓-4.8
9/20 19:20	128.6	↓-5.0
9/20 19:30	123.4	↓-5.2
9/20 19:40	117.9	↓-5.5
9/20 19:50	112.3	↓-5.6
9/20 20:00	106.5	↓-5.8
9/20 20:10	100.6	↓-5.9	最大潮位差
9/20 20:20	94.7	↓-5.9	最大潮位差
9/20 20:30	88.8	↓-5.9	最大潮位差
9/20 20:40	82.9	↓-5.9	最大潮位差
9/20 20:50	77.0	↓-5.9	最大潮位差
9/20 21:00	71.3	↓-5.7
9/20 21:10	65.7	↓-5.6
9/20 21:20	60.3	↓-5.4
9/20 21:30	55.1	↓-5.2
9/20 21:40	50.1	↓-5.0
9/20 21:50	45.5	↓-4.6
9/20 22:00	41.1	↓-4.4
9/20 22:10	37.2	↓-3.9
9/20 22:20	33.6	↓-3.6
9/20 22:30	30.3	↓-3.3
9/20 22:40	27.6	↓-2.7
9/20 22:50	25.2	↓-2.4
9/20 23:00	23.3	↓-1.9
9/20 23:10	21.9	↓-1.4
9/20 23:20	20.9	↓-1.0
9/20 23:30	20.5	↓-0.4	干潮
9/20 23:40	20.5	0
9/20 23:50	21.0	↑0.5