20 (火)	04:13	10:34	17:04	22:45
	194cm	1cm	195cm	54cm
大潮 出 05:02 入 18:17 出 17:45 入 04:09 潮干狩り ◎ 08:35～12:34

姉崎（千葉）2027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	76.9	↑5.3
4/20 00:10	82.4	↑5.5
4/20 00:20	88.2	↑5.8
4/20 00:30	94.3	↑6.1
4/20 00:40	100.5	↑6.2
4/20 00:50	106.9	↑6.4
4/20 01:00	113.4	↑6.5
4/20 01:10	119.8	↑6.4
4/20 01:20	126.3	↑6.5
4/20 01:30	132.7	↑6.4
4/20 01:40	138.9	↑6.2
4/20 01:50	145.1	↑6.2
4/20 02:00	151.0	↑5.9
4/20 02:10	156.6	↑5.6
4/20 02:20	162.0	↑5.4
4/20 02:30	167.0	↑5.0
4/20 02:40	171.7	↑4.7
4/20 02:50	176.0	↑4.3
4/20 03:00	179.9	↑3.9
4/20 03:10	183.3	↑3.4
4/20 03:20	186.3	↑3.0
4/20 03:30	188.8	↑2.5
4/20 03:40	190.8	↑2.0
4/20 03:50	192.2	↑1.4
4/20 04:00	193.1	↑0.9
4/20 04:10	193.5	↑0.4	満潮
4/20 04:20	193.3	↓-0.2
4/20 04:30	192.6	↓-0.7
4/20 04:40	191.3	↓-1.3
4/20 04:50	189.4	↓-1.9
4/20 05:00	187.0	↓-2.4
4/20 05:10	184.0	↓-3.0
4/20 05:20	180.5	↓-3.5
4/20 05:30	176.4	↓-4.1
4/20 05:40	171.9	↓-4.5
4/20 05:50	166.8	↓-5.1
4/20 06:00	161.3	↓-5.5
4/20 06:10	155.3	↓-6.0
4/20 06:20	149.0	↓-6.3
4/20 06:30	142.2	↓-6.8
4/20 06:40	135.1	↓-7.1
4/20 06:50	127.8	↓-7.3
4/20 07:00	120.2	↓-7.6
4/20 07:10	112.4	↓-7.8
4/20 07:20	104.4	↓-8.0
4/20 07:30	96.4	↓-8.0
4/20 07:40	88.3	↓-8.1	最大潮位差
4/20 07:50	80.3	↓-8.0
4/20 08:00	72.4	↓-7.9
4/20 08:10	64.6	↓-7.8
4/20 08:20	57.0	↓-7.6
4/20 08:30	49.7	↓-7.3
4/20 08:40	42.7	↓-7.0
4/20 08:50	36.1	↓-6.6
4/20 09:00	29.9	↓-6.2
4/20 09:10	24.2	↓-5.7
4/20 09:20	19.0	↓-5.2
4/20 09:30	14.4	↓-4.6
4/20 09:40	10.4	↓-4.0
4/20 09:50	7.1	↓-3.3
4/20 10:00	4.4	↓-2.7
4/20 10:10	2.4	↓-2.0
4/20 10:20	1.1	↓-1.3
4/20 10:30	0.5	↓-0.6	干潮
4/20 10:40	0.7	↑0.2
4/20 10:50	1.5	↑0.8
4/20 11:00	3.1	↑1.6
4/20 11:10	5.3	↑2.2
4/20 11:20	8.2	↑2.9
4/20 11:30	11.7	↑3.5
4/20 11:40	15.8	↑4.1
4/20 11:50	20.5	↑4.7
4/20 12:00	25.8	↑5.3
4/20 12:10	31.5	↑5.7
4/20 12:20	37.6	↑6.1
4/20 12:30	44.2	↑6.6
4/20 12:40	51.1	↑6.9
4/20 12:50	58.2	↑7.1
4/20 13:00	65.7	↑7.5
4/20 13:10	73.2	↑7.5
4/20 13:20	80.9	↑7.7
4/20 13:30	88.7	↑7.8
4/20 13:40	96.6	↑7.9
4/20 13:50	104.3	↑7.7
4/20 14:00	112.0	↑7.7
4/20 14:10	119.6	↑7.6
4/20 14:20	127.0	↑7.4
4/20 14:30	134.2	↑7.2
4/20 14:40	141.2	↑7.0
4/20 14:50	147.9	↑6.7
4/20 15:00	154.2	↑6.3
4/20 15:10	160.2	↑6.0
4/20 15:20	165.7	↑5.5
4/20 15:30	170.9	↑5.2
4/20 15:40	175.6	↑4.7
4/20 15:50	179.8	↑4.2
4/20 16:00	183.6	↑3.8
4/20 16:10	186.8	↑3.2
4/20 16:20	189.5	↑2.7
4/20 16:30	191.6	↑2.1
4/20 16:40	193.2	↑1.6
4/20 16:50	194.3	↑1.1
4/20 17:00	194.8	↑0.5	満潮
4/20 17:10	194.7	↓-0.1
4/20 17:20	194.0	↓-0.7
4/20 17:30	192.8	↓-1.2
4/20 17:40	191.0	↓-1.8
4/20 17:50	188.7	↓-2.3
4/20 18:00	185.9	↓-2.8
4/20 18:10	182.5	↓-3.4
4/20 18:20	178.7	↓-3.8
4/20 18:30	174.4	↓-4.3
4/20 18:40	169.7	↓-4.7
4/20 18:50	164.6	↓-5.1
4/20 19:00	159.1	↓-5.5
4/20 19:10	153.4	↓-5.7
4/20 19:20	147.4	↓-6.0
4/20 19:30	141.1	↓-6.3
4/20 19:40	134.7	↓-6.4
4/20 19:50	128.2	↓-6.5
4/20 20:00	121.7	↓-6.5
4/20 20:10	115.1	↓-6.6
4/20 20:20	108.6	↓-6.5
4/20 20:30	102.2	↓-6.4
4/20 20:40	96.0	↓-6.2
4/20 20:50	90.1	↓-5.9
4/20 21:00	84.4	↓-5.7
4/20 21:10	79.1	↓-5.3
4/20 21:20	74.1	↓-5.0
4/20 21:30	69.6	↓-4.5
4/20 21:40	65.6	↓-4.0
4/20 21:50	62.1	↓-3.5
4/20 22:00	59.1	↓-3.0
4/20 22:10	56.7	↓-2.4
4/20 22:20	54.9	↓-1.8
4/20 22:30	53.7	↓-1.2
4/20 22:40	53.2	↓-0.5	干潮
4/20 22:50	53.3	↑0.1
4/20 23:00	54.0	↑0.7
4/20 23:10	55.3	↑1.3
4/20 23:20	57.2	↑1.9
4/20 23:30	59.7	↑2.5
4/20 23:40	62.8	↑3.1
4/20 23:50	66.3	↑3.5