20 (木)	04:36	10:54	17:13	23:00
	152cm	18cm	147cm	49cm
大潮 出 05:05 入 18:18 出 05:02 入 18:25 潮干狩り ◎ 09:16～12:33

館山（千葉）2023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	54.2	↑3.3
4/20 00:10	57.7	↑3.5
4/20 00:20	61.5	↑3.8
4/20 00:30	65.6	↑4.1
4/20 00:40	69.8	↑4.2
4/20 00:50	74.2	↑4.4
4/20 01:00	78.8	↑4.6
4/20 01:10	83.4	↑4.6
4/20 01:20	88.1	↑4.7
4/20 01:30	92.9	↑4.8
4/20 01:40	97.7	↑4.8
4/20 01:50	102.5	↑4.8
4/20 02:00	107.2	↑4.7
4/20 02:10	111.9	↑4.7
4/20 02:20	116.4	↑4.5
4/20 02:30	120.8	↑4.4
4/20 02:40	125.0	↑4.2
4/20 02:50	129.0	↑4.0
4/20 03:00	132.8	↑3.8
4/20 03:10	136.3	↑3.5
4/20 03:20	139.5	↑3.2
4/20 03:30	142.4	↑2.9
4/20 03:40	144.9	↑2.5
4/20 03:50	147.0	↑2.1
4/20 04:00	148.7	↑1.7
4/20 04:10	150.1	↑1.4
4/20 04:20	150.9	↑0.8
4/20 04:30	151.4	↑0.5	満潮
4/20 04:40	151.4	0
4/20 04:50	150.9	↓-0.5
4/20 05:00	150.1	↓-0.8
4/20 05:10	148.7	↓-1.4
4/20 05:20	146.9	↓-1.8
4/20 05:30	144.8	↓-2.1
4/20 05:40	142.1	↓-2.7
4/20 05:50	139.2	↓-2.9
4/20 06:00	135.8	↓-3.4
4/20 06:10	132.1	↓-3.7
4/20 06:20	128.1	↓-4.0
4/20 06:30	123.7	↓-4.4
4/20 06:40	119.1	↓-4.6
4/20 06:50	114.3	↓-4.8
4/20 07:00	109.3	↓-5.0
4/20 07:10	104.1	↓-5.2
4/20 07:20	98.7	↓-5.4
4/20 07:30	93.3	↓-5.4
4/20 07:40	87.7	↓-5.6	最大潮位差
4/20 07:50	82.2	↓-5.5
4/20 08:00	76.6	↓-5.6	最大潮位差
4/20 08:10	71.1	↓-5.5
4/20 08:20	65.7	↓-5.4
4/20 08:30	60.4	↓-5.3
4/20 08:40	55.2	↓-5.2
4/20 08:50	50.2	↓-5.0
4/20 09:00	45.5	↓-4.7
4/20 09:10	41.0	↓-4.5
4/20 09:20	36.9	↓-4.1
4/20 09:30	33.0	↓-3.9
4/20 09:40	29.5	↓-3.5
4/20 09:50	26.4	↓-3.1
4/20 10:00	23.8	↓-2.6
4/20 10:10	21.5	↓-2.3
4/20 10:20	19.7	↓-1.8
4/20 10:30	18.4	↓-1.3
4/20 10:40	17.5	↓-0.9
4/20 10:50	17.1	↓-0.4	干潮
4/20 11:00	17.2	↑0.1
4/20 11:10	17.8	↑0.6
4/20 11:20	18.8	↑1.0
4/20 11:30	20.3	↑1.5
4/20 11:40	22.2	↑1.9
4/20 11:50	24.6	↑2.4
4/20 12:00	27.3	↑2.7
4/20 12:10	30.4	↑3.1
4/20 12:20	33.9	↑3.5
4/20 12:30	37.6	↑3.7
4/20 12:40	41.7	↑4.1
4/20 12:50	46.1	↑4.4
4/20 13:00	50.6	↑4.5
4/20 13:10	55.4	↑4.8
4/20 13:20	60.4	↑5.0
4/20 13:30	65.5	↑5.1
4/20 13:40	70.6	↑5.1
4/20 13:50	75.9	↑5.3
4/20 14:00	81.2	↑5.3
4/20 14:10	86.5	↑5.3
4/20 14:20	91.8	↑5.3
4/20 14:30	97.0	↑5.2
4/20 14:40	102.1	↑5.1
4/20 14:50	107.0	↑4.9
4/20 15:00	111.8	↑4.8
4/20 15:10	116.4	↑4.6
4/20 15:20	120.8	↑4.4
4/20 15:30	124.9	↑4.1
4/20 15:40	128.7	↑3.8
4/20 15:50	132.2	↑3.5
4/20 16:00	135.3	↑3.1
4/20 16:10	138.1	↑2.8
4/20 16:20	140.4	↑2.3
4/20 16:30	142.4	↑2.0
4/20 16:40	144.0	↑1.6
4/20 16:50	145.1	↑1.1
4/20 17:00	145.8	↑0.7
4/20 17:10	146.1	↑0.3	満潮
4/20 17:20	146.0	↓-0.1
4/20 17:30	145.4	↓-0.6
4/20 17:40	144.4	↓-1.0
4/20 17:50	143.1	↓-1.3
4/20 18:00	141.3	↓-1.8
4/20 18:10	139.2	↓-2.1
4/20 18:20	136.8	↓-2.4
4/20 18:30	134.0	↓-2.8
4/20 18:40	131.0	↓-3.0
4/20 18:50	127.7	↓-3.3
4/20 19:00	124.1	↓-3.6
4/20 19:10	120.4	↓-3.7
4/20 19:20	116.5	↓-3.9
4/20 19:30	112.4	↓-4.1
4/20 19:40	108.2	↓-4.2
4/20 19:50	103.9	↓-4.3
4/20 20:00	99.6	↓-4.3
4/20 20:10	95.2	↓-4.4
4/20 20:20	90.9	↓-4.3
4/20 20:30	86.6	↓-4.3
4/20 20:40	82.4	↓-4.2
4/20 20:50	78.3	↓-4.1
4/20 21:00	74.4	↓-3.9
4/20 21:10	70.6	↓-3.8
4/20 21:20	67.1	↓-3.5
4/20 21:30	63.8	↓-3.3
4/20 21:40	60.7	↓-3.1
4/20 21:50	58.0	↓-2.7
4/20 22:00	55.6	↓-2.4
4/20 22:10	53.5	↓-2.1
4/20 22:20	51.8	↓-1.7
4/20 22:30	50.5	↓-1.3
4/20 22:40	49.5	↓-1.0
4/20 22:50	49.0	↓-0.5	干潮
4/20 23:00	48.8	↓-0.2	干潮
4/20 23:10	49.1	↑0.3
4/20 23:20	49.7	↑0.6
4/20 23:30	50.8	↑1.1
4/20 23:40	52.2	↑1.4
4/20 23:50	54.0	↑1.8