31 (日)	05:40	10:52	16:08	23:12
	167cm	103cm	171cm	-4cm
大潮 出 06:50 入 16:40 出 16:12 入 06:15

第一海堡（千葉）2028年12月31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
12/31 00:00	17.3	↑3.7
12/31 00:10	21.4	↑4.1
12/31 00:20	25.8	↑4.4
12/31 00:30	30.5	↑4.7
12/31 00:40	35.6	↑5.1
12/31 00:50	40.9	↑5.3
12/31 01:00	46.4	↑5.5
12/31 01:10	52.2	↑5.8
12/31 01:20	58.1	↑5.9
12/31 01:30	64.2	↑6.1
12/31 01:40	70.3	↑6.1
12/31 01:50	76.5	↑6.2
12/31 02:00	82.8	↑6.3
12/31 02:10	89.0	↑6.2
12/31 02:20	95.2	↑6.2
12/31 02:30	101.3	↑6.1
12/31 02:40	107.3	↑6.0
12/31 02:50	113.1	↑5.8
12/31 03:00	118.8	↑5.7
12/31 03:10	124.2	↑5.4
12/31 03:20	129.4	↑5.2
12/31 03:30	134.4	↑5.0
12/31 03:40	139.0	↑4.6
12/31 03:50	143.4	↑4.4
12/31 04:00	147.4	↑4.0
12/31 04:10	151.0	↑3.6
12/31 04:20	154.3	↑3.3
12/31 04:30	157.2	↑2.9
12/31 04:40	159.8	↑2.6
12/31 04:50	161.9	↑2.1
12/31 05:00	163.6	↑1.7
12/31 05:10	165.0	↑1.4
12/31 05:20	165.9	↑0.9
12/31 05:30	166.4	↑0.5	満潮
12/31 05:40	166.6	↑0.2	満潮
12/31 05:50	166.4	↓-0.2
12/31 06:00	165.8	↓-0.6
12/31 06:10	164.9	↓-0.9
12/31 06:20	163.6	↓-1.3
12/31 06:30	162.1	↓-1.5
12/31 06:40	160.2	↓-1.9
12/31 06:50	158.1	↓-2.1
12/31 07:00	155.8	↓-2.3
12/31 07:10	153.2	↓-2.6
12/31 07:20	150.5	↓-2.7
12/31 07:30	147.6	↓-2.9
12/31 07:40	144.6	↓-3.0
12/31 07:50	141.5	↓-3.1
12/31 08:00	138.4	↓-3.1
12/31 08:10	135.2	↓-3.2
12/31 08:20	132.0	↓-3.2
12/31 08:30	128.8	↓-3.2
12/31 08:40	125.8	↓-3.0
12/31 08:50	122.8	↓-3.0
12/31 09:00	119.9	↓-2.9
12/31 09:10	117.2	↓-2.7
12/31 09:20	114.6	↓-2.6
12/31 09:30	112.3	↓-2.3
12/31 09:40	110.1	↓-2.2
12/31 09:50	108.2	↓-1.9
12/31 10:00	106.6	↓-1.6
12/31 10:10	105.2	↓-1.4
12/31 10:20	104.1	↓-1.1
12/31 10:30	103.3	↓-0.8
12/31 10:40	102.9	↓-0.4
12/31 10:50	102.7	↓-0.2	干潮
12/31 11:00	102.8	↑0.1
12/31 11:10	103.3	↑0.5
12/31 11:20	104.0	↑0.7
12/31 11:30	105.1	↑1.1
12/31 11:40	106.4	↑1.3
12/31 11:50	108.0	↑1.6
12/31 12:00	109.9	↑1.9
12/31 12:10	112.1	↑2.2
12/31 12:20	114.4	↑2.3
12/31 12:30	117.0	↑2.6
12/31 12:40	119.8	↑2.8
12/31 12:50	122.7	↑2.9
12/31 13:00	125.8	↑3.1
12/31 13:10	129.0	↑3.2
12/31 13:20	132.2	↑3.2
12/31 13:30	135.6	↑3.4
12/31 13:40	138.9	↑3.3
12/31 13:50	142.2	↑3.3
12/31 14:00	145.5	↑3.3
12/31 14:10	148.7	↑3.2
12/31 14:20	151.8	↑3.1
12/31 14:30	154.7	↑2.9
12/31 14:40	157.5	↑2.8
12/31 14:50	160.1	↑2.6
12/31 15:00	162.4	↑2.3
12/31 15:10	164.5	↑2.1
12/31 15:20	166.3	↑1.8
12/31 15:30	167.8	↑1.5
12/31 15:40	169.0	↑1.2
12/31 15:50	169.9	↑0.9
12/31 16:00	170.3	↑0.4	満潮
12/31 16:10	170.4	↑0.1
12/31 16:20	170.1	↓-0.3
12/31 16:30	169.4	↓-0.7
12/31 16:40	168.2	↓-1.2
12/31 16:50	166.7	↓-1.5
12/31 17:00	164.7	↓-2.0
12/31 17:10	162.3	↓-2.4
12/31 17:20	159.5	↓-2.8
12/31 17:30	156.3	↓-3.2
12/31 17:40	152.7	↓-3.6
12/31 17:50	148.8	↓-3.9
12/31 18:00	144.5	↓-4.3
12/31 18:10	139.8	↓-4.7
12/31 18:20	134.8	↓-5.0
12/31 18:30	129.5	↓-5.3
12/31 18:40	123.9	↓-5.6
12/31 18:50	118.1	↓-5.8
12/31 19:00	112.1	↓-6.0
12/31 19:10	105.9	↓-6.2
12/31 19:20	99.6	↓-6.3
12/31 19:30	93.1	↓-6.5
12/31 19:40	86.6	↓-6.5
12/31 19:50	80.1	↓-6.5
12/31 20:00	73.5	↓-6.6	最大潮位差
12/31 20:10	67.0	↓-6.5
12/31 20:20	60.5	↓-6.5
12/31 20:30	54.2	↓-6.3
12/31 20:40	48.1	↓-6.1
12/31 20:50	42.1	↓-6.0
12/31 21:00	36.4	↓-5.7
12/31 21:10	30.9	↓-5.5
12/31 21:20	25.7	↓-5.2
12/31 21:30	20.8	↓-4.9
12/31 21:40	16.3	↓-4.5
12/31 21:50	12.2	↓-4.1
12/31 22:00	8.5	↓-3.7
12/31 22:10	5.3	↓-3.2
12/31 22:20	2.5	↓-2.8
12/31 22:30	0.1	↓-2.4
12/31 22:40	-1.7	↓-1.8
12/31 22:50	-3.1	↓-1.4
12/31 23:00	-3.9	↓-0.8
12/31 23:10	-4.2	↓-0.3	干潮
12/31 23:20	-4.0	↑0.2
12/31 23:30	-3.3	↑0.7
12/31 23:40	-2.1	↑1.2
12/31 23:50	-0.4	↑1.7