20 (木)	02:47	08:43	14:32	20:40
	152cm	74cm	143cm	63cm
若潮 出 04:59 入 18:15 出 02:24 入 14:04

千葉灯標（千葉）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	122.0	↑3.1
4/20 00:10	125.0	↑3.0
4/20 00:20	127.9	↑2.9
4/20 00:30	130.8	↑2.9
4/20 00:40	133.5	↑2.7
4/20 00:50	136.0	↑2.5
4/20 01:00	138.4	↑2.4
4/20 01:10	140.7	↑2.3
4/20 01:20	142.8	↑2.1
4/20 01:30	144.7	↑1.9
4/20 01:40	146.4	↑1.7
4/20 01:50	147.8	↑1.4
4/20 02:00	149.1	↑1.3
4/20 02:10	150.1	↑1.0
4/20 02:20	150.9	↑0.8
4/20 02:30	151.4	↑0.5
4/20 02:40	151.7	↑0.3	満潮
4/20 02:50	151.7	0
4/20 03:00	151.5	↓-0.2
4/20 03:10	151.0	↓-0.5
4/20 03:20	150.2	↓-0.8
4/20 03:30	149.2	↓-1.0
4/20 03:40	147.9	↓-1.3
4/20 03:50	146.4	↓-1.5
4/20 04:00	144.6	↓-1.8
4/20 04:10	142.6	↓-2.0
4/20 04:20	140.3	↓-2.3
4/20 04:30	137.9	↓-2.4
4/20 04:40	135.2	↓-2.7
4/20 04:50	132.4	↓-2.8
4/20 05:00	129.4	↓-3.0
4/20 05:10	126.2	↓-3.2
4/20 05:20	123.0	↓-3.2
4/20 05:30	119.6	↓-3.4
4/20 05:40	116.2	↓-3.4
4/20 05:50	112.7	↓-3.5
4/20 06:00	109.2	↓-3.5
4/20 06:10	105.7	↓-3.5
4/20 06:20	102.3	↓-3.4
4/20 06:30	98.9	↓-3.4
4/20 06:40	95.6	↓-3.3
4/20 06:50	92.5	↓-3.1
4/20 07:00	89.5	↓-3.0
4/20 07:10	86.7	↓-2.8
4/20 07:20	84.1	↓-2.6
4/20 07:30	81.7	↓-2.4
4/20 07:40	79.7	↓-2.0
4/20 07:50	77.8	↓-1.9
4/20 08:00	76.3	↓-1.5
4/20 08:10	75.1	↓-1.2
4/20 08:20	74.2	↓-0.9
4/20 08:30	73.7	↓-0.5
4/20 08:40	73.4	↓-0.3	干潮
4/20 08:50	73.5	↑0.1
4/20 09:00	74.0	↑0.5
4/20 09:10	74.7	↑0.7
4/20 09:20	75.8	↑1.1
4/20 09:30	77.1	↑1.3
4/20 09:40	78.7	↑1.6
4/20 09:50	80.6	↑1.9
4/20 10:00	82.7	↑2.1
4/20 10:10	85.0	↑2.3
4/20 10:20	87.5	↑2.5
4/20 10:30	90.2	↑2.7
4/20 10:40	93.0	↑2.8
4/20 10:50	95.9	↑2.9
4/20 11:00	98.9	↑3.0
4/20 11:10	101.9	↑3.0
4/20 11:20	105.0	↑3.1
4/20 11:30	108.1	↑3.1
4/20 11:40	111.1	↑3.0
4/20 11:50	114.2	↑3.1
4/20 12:00	117.1	↑2.9
4/20 12:10	120.0	↑2.9
4/20 12:20	122.8	↑2.8
4/20 12:30	125.5	↑2.7
4/20 12:40	128.0	↑2.5
4/20 12:50	130.4	↑2.4
4/20 13:00	132.6	↑2.2
4/20 13:10	134.6	↑2.0
4/20 13:20	136.5	↑1.9
4/20 13:30	138.1	↑1.6
4/20 13:40	139.5	↑1.4
4/20 13:50	140.6	↑1.1
4/20 14:00	141.5	↑0.9
4/20 14:10	142.2	↑0.7
4/20 14:20	142.6	↑0.4
4/20 14:30	142.8	↑0.2	満潮
4/20 14:40	142.7	↓-0.1
4/20 14:50	142.3	↓-0.4
4/20 15:00	141.6	↓-0.7
4/20 15:10	140.7	↓-0.9
4/20 15:20	139.6	↓-1.1
4/20 15:30	138.2	↓-1.4
4/20 15:40	136.6	↓-1.6
4/20 15:50	134.7	↓-1.9
4/20 16:00	132.6	↓-2.1
4/20 16:10	130.3	↓-2.3
4/20 16:20	127.8	↓-2.5
4/20 16:30	125.1	↓-2.7
4/20 16:40	122.3	↓-2.8
4/20 16:50	119.3	↓-3.0
4/20 17:00	116.2	↓-3.1
4/20 17:10	112.9	↓-3.3
4/20 17:20	109.6	↓-3.3
4/20 17:30	106.3	↓-3.3
4/20 17:40	102.8	↓-3.5
4/20 17:50	99.4	↓-3.4
4/20 18:00	96.0	↓-3.4
4/20 18:10	92.6	↓-3.4
4/20 18:20	89.2	↓-3.4
4/20 18:30	86.0	↓-3.2
4/20 18:40	82.8	↓-3.2
4/20 18:50	79.8	↓-3.0
4/20 19:00	77.0	↓-2.8
4/20 19:10	74.3	↓-2.7
4/20 19:20	71.9	↓-2.4
4/20 19:30	69.6	↓-2.3
4/20 19:40	67.7	↓-1.9
4/20 19:50	66.0	↓-1.7
4/20 20:00	64.6	↓-1.4
4/20 20:10	63.5	↓-1.1
4/20 20:20	62.7	↓-0.8
4/20 20:30	62.2	↓-0.5	干潮
4/20 20:40	62.1	↓-0.1	干潮
4/20 20:50	62.3	↑0.2
4/20 21:00	62.8	↑0.5
4/20 21:10	63.7	↑0.9
4/20 21:20	64.9	↑1.2
4/20 21:30	66.4	↑1.5
4/20 21:40	68.2	↑1.8
4/20 21:50	70.3	↑2.1
4/20 22:00	72.6	↑2.3
4/20 22:10	75.2	↑2.6
4/20 22:20	78.0	↑2.8
4/20 22:30	81.0	↑3.0
4/20 22:40	84.2	↑3.2
4/20 22:50	87.5	↑3.3
4/20 23:00	91.0	↑3.5
4/20 23:10	94.6	↑3.6
4/20 23:20	98.3	↑3.7
4/20 23:30	102.0	↑3.7
4/20 23:40	105.8	↑3.8	最大潮位差
4/20 23:50	109.5	↑3.7