20 (土)	05:09	10:42	16:12	22:54
	161cm	79cm	162cm	5cm
大潮 出 06:23 入 17:29 出 16:43 入 05:43

第一海堡（千葉）2027年02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
2/20 00:00	29.6	↑4.1
2/20 00:10	34.0	↑4.4
2/20 00:20	38.7	↑4.7
2/20 00:30	43.7	↑5.0
2/20 00:40	49.0	↑5.3
2/20 00:50	54.4	↑5.4
2/20 01:00	60.1	↑5.7
2/20 01:10	65.8	↑5.7
2/20 01:20	71.7	↑5.9
2/20 01:30	77.6	↑5.9
2/20 01:40	83.6	↑6.0
2/20 01:50	89.5	↑5.9
2/20 02:00	95.5	↑6.0
2/20 02:10	101.3	↑5.8
2/20 02:20	107.0	↑5.7
2/20 02:30	112.6	↑5.6
2/20 02:40	118.0	↑5.4
2/20 02:50	123.2	↑5.2
2/20 03:00	128.2	↑5.0
2/20 03:10	132.8	↑4.6
2/20 03:20	137.2	↑4.4
2/20 03:30	141.3	↑4.1
2/20 03:40	145.0	↑3.7
2/20 03:50	148.4	↑3.4
2/20 04:00	151.4	↑3.0
2/20 04:10	154.0	↑2.6
2/20 04:20	156.2	↑2.2
2/20 04:30	157.9	↑1.7
2/20 04:40	159.3	↑1.4
2/20 04:50	160.3	↑1.0
2/20 05:00	160.8	↑0.5	満潮
2/20 05:10	161.0	↑0.2
2/20 05:20	160.7	↓-0.3
2/20 05:30	160.0	↓-0.7
2/20 05:40	159.0	↓-1.0
2/20 05:50	157.5	↓-1.5
2/20 06:00	155.8	↓-1.7
2/20 06:10	153.7	↓-2.1
2/20 06:20	151.3	↓-2.4
2/20 06:30	148.6	↓-2.7
2/20 06:40	145.6	↓-3.0
2/20 06:50	142.5	↓-3.1
2/20 07:00	139.1	↓-3.4
2/20 07:10	135.6	↓-3.5
2/20 07:20	131.9	↓-3.7
2/20 07:30	128.1	↓-3.8
2/20 07:40	124.3	↓-3.8
2/20 07:50	120.4	↓-3.9
2/20 08:00	116.5	↓-3.9
2/20 08:10	112.7	↓-3.8
2/20 08:20	108.9	↓-3.8
2/20 08:30	105.2	↓-3.7
2/20 08:40	101.6	↓-3.6
2/20 08:50	98.2	↓-3.4
2/20 09:00	95.0	↓-3.2
2/20 09:10	92.0	↓-3.0
2/20 09:20	89.3	↓-2.7
2/20 09:30	86.8	↓-2.5
2/20 09:40	84.6	↓-2.2
2/20 09:50	82.7	↓-1.9
2/20 10:00	81.1	↓-1.6
2/20 10:10	79.8	↓-1.3
2/20 10:20	78.9	↓-0.9
2/20 10:30	78.4	↓-0.5
2/20 10:40	78.2	↓-0.2	干潮
2/20 10:50	78.3	↑0.1
2/20 11:00	78.8	↑0.5
2/20 11:10	79.7	↑0.9
2/20 11:20	80.9	↑1.2
2/20 11:30	82.4	↑1.5
2/20 11:40	84.3	↑1.9
2/20 11:50	86.5	↑2.2
2/20 12:00	88.9	↑2.4
2/20 12:10	91.7	↑2.8
2/20 12:20	94.7	↑3.0
2/20 12:30	97.9	↑3.2
2/20 12:40	101.3	↑3.4
2/20 12:50	104.8	↑3.5
2/20 13:00	108.5	↑3.7
2/20 13:10	112.3	↑3.8
2/20 13:20	116.2	↑3.9
2/20 13:30	120.1	↑3.9
2/20 13:40	124.1	↑4.0
2/20 13:50	128.0	↑3.9
2/20 14:00	131.8	↑3.8
2/20 14:10	135.5	↑3.7
2/20 14:20	139.1	↑3.6
2/20 14:30	142.6	↑3.5
2/20 14:40	145.8	↑3.2
2/20 14:50	148.8	↑3.0
2/20 15:00	151.5	↑2.7
2/20 15:10	154.0	↑2.5
2/20 15:20	156.1	↑2.1
2/20 15:30	157.9	↑1.8
2/20 15:40	159.4	↑1.5
2/20 15:50	160.5	↑1.1
2/20 16:00	161.1	↑0.6
2/20 16:10	161.4	↑0.3	満潮
2/20 16:20	161.2	↓-0.2
2/20 16:30	160.7	↓-0.5
2/20 16:40	159.7	↓-1.0
2/20 16:50	158.2	↓-1.5
2/20 17:00	156.3	↓-1.9
2/20 17:10	154.0	↓-2.3
2/20 17:20	151.3	↓-2.7
2/20 17:30	148.2	↓-3.1
2/20 17:40	144.7	↓-3.5
2/20 17:50	140.8	↓-3.9
2/20 18:00	136.5	↓-4.3
2/20 18:10	131.9	↓-4.6
2/20 18:20	127.1	↓-4.8
2/20 18:30	121.9	↓-5.2
2/20 18:40	116.5	↓-5.4
2/20 18:50	110.8	↓-5.7
2/20 19:00	105.0	↓-5.8
2/20 19:10	99.0	↓-6.0
2/20 19:20	92.9	↓-6.1
2/20 19:30	86.7	↓-6.2	最大潮位差
2/20 19:40	80.5	↓-6.2	最大潮位差
2/20 19:50	74.3	↓-6.2	最大潮位差
2/20 20:00	68.2	↓-6.1
2/20 20:10	62.1	↓-6.1
2/20 20:20	56.1	↓-6.0
2/20 20:30	50.3	↓-5.8
2/20 20:40	44.7	↓-5.6
2/20 20:50	39.4	↓-5.3
2/20 21:00	34.3	↓-5.1
2/20 21:10	29.5	↓-4.8
2/20 21:20	25.0	↓-4.5
2/20 21:30	21.0	↓-4.0
2/20 21:40	17.3	↓-3.7
2/20 21:50	14.0	↓-3.3
2/20 22:00	11.2	↓-2.8
2/20 22:10	8.8	↓-2.4
2/20 22:20	6.9	↓-1.9
2/20 22:30	5.5	↓-1.4
2/20 22:40	4.6	↓-0.9
2/20 22:50	4.2	↓-0.4	干潮
2/20 23:00	4.3	↑0.1
2/20 23:10	4.9	↑0.6
2/20 23:20	6.1	↑1.2
2/20 23:30	7.7	↑1.6
2/20 23:40	9.8	↑2.1
2/20 23:50	12.4	↑2.6