20 (金)	07:35	01:10	19:39	13:42
	142cm	43cm	133cm	56cm
中潮 出 06:22 入 17:30 出 09:06 入 21:57

館山（千葉）2037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	50.0	↓-2.4
2/20 00:10	47.9	↓-2.1
2/20 00:20	46.0	↓-1.9
2/20 00:30	44.6	↓-1.4
2/20 00:40	43.4	↓-1.2
2/20 00:50	42.6	↓-0.8
2/20 01:00	42.1	↓-0.5	干潮
2/20 01:10	42.0	↓-0.1	干潮
2/20 01:20	42.2	↑0.2
2/20 01:30	42.8	↑0.6
2/20 01:40	43.7	↑0.9
2/20 01:50	44.9	↑1.2
2/20 02:00	46.4	↑1.5
2/20 02:10	48.2	↑1.8
2/20 02:20	50.3	↑2.1
2/20 02:30	52.6	↑2.3
2/20 02:40	55.2	↑2.6
2/20 02:50	58.1	↑2.9
2/20 03:00	61.1	↑3.0
2/20 03:10	64.4	↑3.3
2/20 03:20	67.8	↑3.4
2/20 03:30	71.3	↑3.5
2/20 03:40	75.0	↑3.7
2/20 03:50	78.9	↑3.9
2/20 04:00	82.8	↑3.9
2/20 04:10	86.7	↑3.9
2/20 04:20	90.7	↑4.0
2/20 04:30	94.8	↑4.1	最大潮位差
2/20 04:40	98.8	↑4.0
2/20 04:50	102.8	↑4.0
2/20 05:00	106.7	↑3.9
2/20 05:10	110.5	↑3.8
2/20 05:20	114.2	↑3.7
2/20 05:30	117.8	↑3.6
2/20 05:40	121.2	↑3.4
2/20 05:50	124.4	↑3.2
2/20 06:00	127.4	↑3.0
2/20 06:10	130.1	↑2.7
2/20 06:20	132.6	↑2.5
2/20 06:30	134.9	↑2.3
2/20 06:40	136.8	↑1.9
2/20 06:50	138.4	↑1.6
2/20 07:00	139.7	↑1.3
2/20 07:10	140.7	↑1.0
2/20 07:20	141.3	↑0.6
2/20 07:30	141.6	↑0.3	満潮
2/20 07:40	141.6	0
2/20 07:50	141.2	↓-0.4
2/20 08:00	140.6	↓-0.6
2/20 08:10	139.6	↓-1.0
2/20 08:20	138.3	↓-1.3
2/20 08:30	136.7	↓-1.6
2/20 08:40	134.9	↓-1.8
2/20 08:50	132.7	↓-2.2
2/20 09:00	130.4	↓-2.3
2/20 09:10	127.8	↓-2.6
2/20 09:20	125.0	↓-2.8
2/20 09:30	122.0	↓-3.0
2/20 09:40	118.8	↓-3.2
2/20 09:50	115.5	↓-3.3
2/20 10:00	112.0	↓-3.5
2/20 10:10	108.5	↓-3.5
2/20 10:20	104.9	↓-3.6
2/20 10:30	101.2	↓-3.7
2/20 10:40	97.5	↓-3.7
2/20 10:50	93.8	↓-3.7
2/20 11:00	90.1	↓-3.7
2/20 11:10	86.5	↓-3.6
2/20 11:20	83.0	↓-3.5
2/20 11:30	79.6	↓-3.4
2/20 11:40	76.3	↓-3.3
2/20 11:50	73.2	↓-3.1
2/20 12:00	70.3	↓-2.9
2/20 12:10	67.6	↓-2.7
2/20 12:20	65.1	↓-2.5
2/20 12:30	62.8	↓-2.3
2/20 12:40	60.9	↓-1.9
2/20 12:50	59.2	↓-1.7
2/20 13:00	57.8	↓-1.4
2/20 13:10	56.7	↓-1.1
2/20 13:20	55.9	↓-0.8
2/20 13:30	55.4	↓-0.5
2/20 13:40	55.2	↓-0.2	干潮
2/20 13:50	55.3	↑0.1
2/20 14:00	55.7	↑0.4
2/20 14:10	56.4	↑0.7
2/20 14:20	57.4	↑1.0
2/20 14:30	58.7	↑1.3
2/20 14:40	60.2	↑1.5
2/20 14:50	61.9	↑1.7
2/20 15:00	63.9	↑2.0
2/20 15:10	66.2	↑2.3
2/20 15:20	68.6	↑2.4
2/20 15:30	71.2	↑2.6
2/20 15:40	73.9	↑2.7
2/20 15:50	76.8	↑2.9
2/20 16:00	79.9	↑3.1
2/20 16:10	83.0	↑3.1
2/20 16:20	86.3	↑3.3
2/20 16:30	89.6	↑3.3
2/20 16:40	92.9	↑3.3
2/20 16:50	96.3	↑3.4
2/20 17:00	99.7	↑3.4
2/20 17:10	103.0	↑3.3
2/20 17:20	106.3	↑3.3
2/20 17:30	109.4	↑3.1
2/20 17:40	112.5	↑3.1
2/20 17:50	115.4	↑2.9
2/20 18:00	118.2	↑2.8
2/20 18:10	120.8	↑2.6
2/20 18:20	123.1	↑2.3
2/20 18:30	125.2	↑2.1
2/20 18:40	127.1	↑1.9
2/20 18:50	128.7	↑1.6
2/20 19:00	130.0	↑1.3
2/20 19:10	131.0	↑1.0
2/20 19:20	131.7	↑0.7
2/20 19:30	132.1	↑0.4	満潮
2/20 19:40	132.2	↑0.1
2/20 19:50	132.0	↓-0.2
2/20 20:00	131.4	↓-0.6
2/20 20:10	130.6	↓-0.8
2/20 20:20	129.5	↓-1.1
2/20 20:30	128.1	↓-1.4
2/20 20:40	126.4	↓-1.7
2/20 20:50	124.4	↓-2.0
2/20 21:00	122.3	↓-2.1
2/20 21:10	119.9	↓-2.4
2/20 21:20	117.3	↓-2.6
2/20 21:30	114.5	↓-2.8
2/20 21:40	111.6	↓-2.9
2/20 21:50	108.5	↓-3.1
2/20 22:00	105.3	↓-3.2
2/20 22:10	102.0	↓-3.3
2/20 22:20	98.7	↓-3.3
2/20 22:30	95.3	↓-3.4
2/20 22:40	91.9	↓-3.4
2/20 22:50	88.5	↓-3.4
2/20 23:00	85.1	↓-3.4
2/20 23:10	81.8	↓-3.3
2/20 23:20	78.5	↓-3.3
2/20 23:30	75.4	↓-3.1
2/20 23:40	72.4	↓-3.0
2/20 23:50	69.6	↓-2.8