31 (日)	05:26	10:44	15:50	22:49
	153cm	100cm	148cm	1cm
大潮 出 06:48 入 16:42 出 16:13 入 06:13

館山（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	28.9	↑4.0
12/31 00:10	33.2	↑4.3
12/31 00:20	37.7	↑4.5
12/31 00:30	42.4	↑4.7
12/31 00:40	47.3	↑4.9
12/31 00:50	52.3	↑5.0
12/31 01:00	57.4	↑5.1
12/31 01:10	62.7	↑5.3
12/31 01:20	68.0	↑5.3
12/31 01:30	73.3	↑5.3
12/31 01:40	78.7	↑5.4
12/31 01:50	84.0	↑5.3
12/31 02:00	89.3	↑5.3
12/31 02:10	94.6	↑5.3
12/31 02:20	99.7	↑5.1
12/31 02:30	104.8	↑5.1
12/31 02:40	109.7	↑4.9
12/31 02:50	114.4	↑4.7
12/31 03:00	119.0	↑4.6
12/31 03:10	123.3	↑4.3
12/31 03:20	127.4	↑4.1
12/31 03:30	131.2	↑3.8
12/31 03:40	134.8	↑3.6
12/31 03:50	138.1	↑3.3
12/31 04:00	141.0	↑2.9
12/31 04:10	143.7	↑2.7
12/31 04:20	146.0	↑2.3
12/31 04:30	148.0	↑2.0
12/31 04:40	149.6	↑1.6
12/31 04:50	150.9	↑1.3
12/31 05:00	151.9	↑1.0
12/31 05:10	152.5	↑0.6
12/31 05:20	152.8	↑0.3	満潮
12/31 05:30	152.9	↑0.1
12/31 05:40	152.6	↓-0.3
12/31 05:50	152.0	↓-0.6
12/31 06:00	151.1	↓-0.9
12/31 06:10	150.0	↓-1.1
12/31 06:20	148.7	↓-1.3
12/31 06:30	147.1	↓-1.6
12/31 06:40	145.4	↓-1.7
12/31 06:50	143.5	↓-1.9
12/31 07:00	141.4	↓-2.1
12/31 07:10	139.2	↓-2.2
12/31 07:20	136.8	↓-2.4
12/31 07:30	134.4	↓-2.4
12/31 07:40	131.9	↓-2.5
12/31 07:50	129.3	↓-2.6
12/31 08:00	126.7	↓-2.6
12/31 08:10	124.1	↓-2.6
12/31 08:20	121.6	↓-2.5
12/31 08:30	119.0	↓-2.6
12/31 08:40	116.5	↓-2.5
12/31 08:50	114.2	↓-2.3
12/31 09:00	111.9	↓-2.3
12/31 09:10	109.7	↓-2.2
12/31 09:20	107.7	↓-2.0
12/31 09:30	105.9	↓-1.8
12/31 09:40	104.3	↓-1.6
12/31 09:50	102.9	↓-1.4
12/31 10:00	101.7	↓-1.2
12/31 10:10	100.7	↓-1.0
12/31 10:20	100.0	↓-0.7
12/31 10:30	99.5	↓-0.5
12/31 10:40	99.3	↓-0.2	干潮
12/31 10:50	99.4	↑0.1
12/31 11:00	99.7	↑0.3
12/31 11:10	100.2	↑0.5
12/31 11:20	101.0	↑0.8
12/31 11:30	102.0	↑1.0
12/31 11:40	103.3	↑1.3
12/31 11:50	104.7	↑1.4
12/31 12:00	106.3	↑1.6
12/31 12:10	108.1	↑1.8
12/31 12:20	110.0	↑1.9
12/31 12:30	112.0	↑2.0
12/31 12:40	114.2	↑2.2
12/31 12:50	116.4	↑2.2
12/31 13:00	118.7	↑2.3
12/31 13:10	121.1	↑2.4
12/31 13:20	123.4	↑2.3
12/31 13:30	125.8	↑2.4
12/31 13:40	128.2	↑2.4
12/31 13:50	130.5	↑2.3
12/31 14:00	132.7	↑2.2
12/31 14:10	134.9	↑2.2
12/31 14:20	137.0	↑2.1
12/31 14:30	138.9	↑1.9
12/31 14:40	140.7	↑1.8
12/31 14:50	142.3	↑1.6
12/31 15:00	143.7	↑1.4
12/31 15:10	144.9	↑1.2
12/31 15:20	145.8	↑0.9
12/31 15:30	146.5	↑0.7
12/31 15:40	147.0	↑0.5	満潮
12/31 15:50	147.1	↑0.1	満潮
12/31 16:00	146.9	↓-0.2
12/31 16:10	146.4	↓-0.5
12/31 16:20	145.5	↓-0.9
12/31 16:30	144.3	↓-1.2
12/31 16:40	142.7	↓-1.6
12/31 16:50	140.8	↓-1.9
12/31 17:00	138.6	↓-2.2
12/31 17:10	136.0	↓-2.6
12/31 17:20	133.0	↓-3.0
12/31 17:30	129.8	↓-3.2
12/31 17:40	126.2	↓-3.6
12/31 17:50	122.3	↓-3.9
12/31 18:00	118.1	↓-4.2
12/31 18:10	113.7	↓-4.4
12/31 18:20	109.0	↓-4.7
12/31 18:30	104.2	↓-4.8
12/31 18:40	99.1	↓-5.1
12/31 18:50	93.9	↓-5.2
12/31 19:00	88.6	↓-5.3
12/31 19:10	83.2	↓-5.4
12/31 19:20	77.7	↓-5.5
12/31 19:30	72.2	↓-5.5
12/31 19:40	66.6	↓-5.6	最大潮位差
12/31 19:50	61.1	↓-5.5
12/31 20:00	55.7	↓-5.4
12/31 20:10	50.3	↓-5.4
12/31 20:20	45.1	↓-5.2
12/31 20:30	40.0	↓-5.1
12/31 20:40	35.1	↓-4.9
12/31 20:50	30.4	↓-4.7
12/31 21:00	25.9	↓-4.5
12/31 21:10	21.8	↓-4.1
12/31 21:20	17.9	↓-3.9
12/31 21:30	14.4	↓-3.5
12/31 21:40	11.2	↓-3.2
12/31 21:50	8.4	↓-2.8
12/31 22:00	6.1	↓-2.3
12/31 22:10	4.1	↓-2.0
12/31 22:20	2.6	↓-1.5
12/31 22:30	1.5	↓-1.1
12/31 22:40	0.9	↓-0.6	干潮
12/31 22:50	0.8	↓-0.1
12/31 23:00	1.1	↑0.3
12/31 23:10	1.9	↑0.8
12/31 23:20	3.1	↑1.2
12/31 23:30	4.8	↑1.7
12/31 23:40	6.9	↑2.1
12/31 23:50	9.5	↑2.6