23 (土)	05:53	11:40	17:34	23:59
	138cm	62cm	132cm	31cm
中潮 出 05:27 入 17:35 出 19:32 入 08:22

那珂湊（茨城）2051年09月23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
9/23 00:00	37.4	↑1.3
9/23 00:10	38.9	↑1.5
9/23 00:20	40.8	↑1.9
9/23 00:30	43.0	↑2.2
9/23 00:40	45.4	↑2.4
9/23 00:50	48.1	↑2.7
9/23 01:00	51.0	↑2.9
9/23 01:10	54.1	↑3.1
9/23 01:20	57.5	↑3.4
9/23 01:30	61.0	↑3.5
9/23 01:40	64.6	↑3.6
9/23 01:50	68.4	↑3.8
9/23 02:00	72.3	↑3.9
9/23 02:10	76.3	↑4.0
9/23 02:20	80.3	↑4.0
9/23 02:30	84.4	↑4.1
9/23 02:40	88.4	↑4.0
9/23 02:50	92.5	↑4.1
9/23 03:00	96.5	↑4.0
9/23 03:10	100.5	↑4.0
9/23 03:20	104.3	↑3.8
9/23 03:30	108.0	↑3.7
9/23 03:40	111.6	↑3.6
9/23 03:50	115.1	↑3.5
9/23 04:00	118.4	↑3.3
9/23 04:10	121.4	↑3.0
9/23 04:20	124.3	↑2.9
9/23 04:30	126.9	↑2.6
9/23 04:40	129.2	↑2.3
9/23 04:50	131.3	↑2.1
9/23 05:00	133.1	↑1.8
9/23 05:10	134.6	↑1.5
9/23 05:20	135.7	↑1.1
9/23 05:30	136.6	↑0.9
9/23 05:40	137.2	↑0.6
9/23 05:50	137.4	↑0.2	満潮
9/23 06:00	137.3	↓-0.1
9/23 06:10	136.9	↓-0.4
9/23 06:20	136.2	↓-0.7
9/23 06:30	135.1	↓-1.1
9/23 06:40	133.8	↓-1.3
9/23 06:50	132.1	↓-1.7
9/23 07:00	130.2	↓-1.9
9/23 07:10	128.1	↓-2.1
9/23 07:20	125.7	↓-2.4
9/23 07:30	123.1	↓-2.6
9/23 07:40	120.2	↓-2.9
9/23 07:50	117.3	↓-2.9
9/23 08:00	114.1	↓-3.2
9/23 08:10	110.9	↓-3.2
9/23 08:20	107.5	↓-3.4
9/23 08:30	104.1	↓-3.4
9/23 08:40	100.7	↓-3.4
9/23 08:50	97.3	↓-3.4
9/23 09:00	93.9	↓-3.4
9/23 09:10	90.5	↓-3.4
9/23 09:20	87.2	↓-3.3
9/23 09:30	84.1	↓-3.1
9/23 09:40	81.0	↓-3.1
9/23 09:50	78.1	↓-2.9
9/23 10:00	75.4	↓-2.7
9/23 10:10	73.0	↓-2.4
9/23 10:20	70.7	↓-2.3
9/23 10:30	68.6	↓-2.1
9/23 10:40	66.8	↓-1.8
9/23 10:50	65.3	↓-1.5
9/23 11:00	64.1	↓-1.2
9/23 11:10	63.1	↓-1.0
9/23 11:20	62.4	↓-0.7
9/23 11:30	62.0	↓-0.4	干潮
9/23 11:40	61.9	↓-0.1	干潮
9/23 11:50	62.0	↑0.1
9/23 12:00	62.5	↑0.5
9/23 12:10	63.2	↑0.7
9/23 12:20	64.2	↑1.0
9/23 12:30	65.4	↑1.2
9/23 12:40	66.9	↑1.5
9/23 12:50	68.6	↑1.7
9/23 13:00	70.5	↑1.9
9/23 13:10	72.6	↑2.1
9/23 13:20	74.9	↑2.3
9/23 13:30	77.4	↑2.5
9/23 13:40	80.0	↑2.6
9/23 13:50	82.8	↑2.8
9/23 14:00	85.6	↑2.8
9/23 14:10	88.5	↑2.9
9/23 14:20	91.5	↑3.0
9/23 14:30	94.5	↑3.0
9/23 14:40	97.6	↑3.1
9/23 14:50	100.6	↑3.0
9/23 15:00	103.6	↑3.0
9/23 15:10	106.6	↑3.0
9/23 15:20	109.5	↑2.9
9/23 15:30	112.3	↑2.8
9/23 15:40	114.9	↑2.6
9/23 15:50	117.5	↑2.6
9/23 16:00	119.9	↑2.4
9/23 16:10	122.1	↑2.2
9/23 16:20	124.1	↑2.0
9/23 16:30	125.9	↑1.8
9/23 16:40	127.5	↑1.6
9/23 16:50	128.9	↑1.4
9/23 17:00	129.9	↑1.0
9/23 17:10	130.7	↑0.8
9/23 17:20	131.3	↑0.6
9/23 17:30	131.5	↑0.2	満潮
9/23 17:40	131.4	↓-0.1
9/23 17:50	131.0	↓-0.4
9/23 18:00	130.4	↓-0.6
9/23 18:10	129.4	↓-1.0
9/23 18:20	128.1	↓-1.3
9/23 18:30	126.5	↓-1.6
9/23 18:40	124.6	↓-1.9
9/23 18:50	122.4	↓-2.2
9/23 19:00	119.9	↓-2.5
9/23 19:10	117.2	↓-2.7
9/23 19:20	114.2	↓-3.0
9/23 19:30	111.0	↓-3.2
9/23 19:40	107.6	↓-3.4
9/23 19:50	104.0	↓-3.6
9/23 20:00	100.2	↓-3.8
9/23 20:10	96.3	↓-3.9
9/23 20:20	92.3	↓-4.0
9/23 20:30	88.2	↓-4.1
9/23 20:40	84.1	↓-4.1
9/23 20:50	79.9	↓-4.2	最大潮位差
9/23 21:00	75.8	↓-4.1
9/23 21:10	71.6	↓-4.2	最大潮位差
9/23 21:20	67.6	↓-4.0
9/23 21:30	63.6	↓-4.0
9/23 21:40	59.8	↓-3.8
9/23 21:50	56.1	↓-3.7
9/23 22:00	52.6	↓-3.5
9/23 22:10	49.3	↓-3.3
9/23 22:20	46.2	↓-3.1
9/23 22:30	43.3	↓-2.9
9/23 22:40	40.8	↓-2.5
9/23 22:50	38.5	↓-2.3
9/23 23:00	36.4	↓-2.1
9/23 23:10	34.7	↓-1.7
9/23 23:20	33.3	↓-1.4
9/23 23:30	32.3	↓-1.0
9/23 23:40	31.5	↓-0.8
9/23 23:50	31.1	↓-0.4	干潮