11 (火)	06:14	11:24	17:06	23:56
	115cm	63cm	123cm	4cm
中潮 出 06:31 入 17:15 出 19:32 入 07:56

那珂湊（茨城）2020年02月11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
2/11 00:00	-1.1	↑1.4
2/11 00:10	0.7	↑1.8
2/11 00:20	2.7	↑2.0
2/11 00:30	5.1	↑2.4
2/11 00:40	7.7	↑2.6
2/11 00:50	10.6	↑2.9
2/11 01:00	13.8	↑3.2
2/11 01:10	17.2	↑3.4
2/11 01:20	20.9	↑3.7
2/11 01:30	24.7	↑3.8
2/11 01:40	28.7	↑4.0
2/11 01:50	32.8	↑4.1
2/11 02:00	37.0	↑4.2
2/11 02:10	41.4	↑4.4
2/11 02:20	45.8	↑4.4
2/11 02:30	50.2	↑4.4
2/11 02:40	54.7	↑4.5
2/11 02:50	59.2	↑4.5
2/11 03:00	63.7	↑4.5
2/11 03:10	68.1	↑4.4
2/11 03:20	72.4	↑4.3
2/11 03:30	76.6	↑4.2
2/11 03:40	80.7	↑4.1
2/11 03:50	84.6	↑3.9
2/11 04:00	88.4	↑3.8
2/11 04:10	92.0	↑3.6
2/11 04:20	95.3	↑3.3
2/11 04:30	98.5	↑3.2
2/11 04:40	101.4	↑2.9
2/11 04:50	104.0	↑2.6
2/11 05:00	106.4	↑2.4
2/11 05:10	108.4	↑2.0
2/11 05:20	110.2	↑1.8
2/11 05:30	111.7	↑1.5
2/11 05:40	112.9	↑1.2
2/11 05:50	113.7	↑0.8
2/11 06:00	114.3	↑0.6
2/11 06:10	114.5	↑0.2	満潮
2/11 06:20	114.4	↓-0.1
2/11 06:30	114.1	↓-0.3
2/11 06:40	113.4	↓-0.7
2/11 06:50	112.5	↓-0.9
2/11 07:00	111.3	↓-1.2
2/11 07:10	109.9	↓-1.4
2/11 07:20	108.2	↓-1.7
2/11 07:30	106.3	↓-1.9
2/11 07:40	104.3	↓-2.0
2/11 07:50	102.1	↓-2.2
2/11 08:00	99.7	↓-2.4
2/11 08:10	97.3	↓-2.4
2/11 08:20	94.7	↓-2.6
2/11 08:30	92.2	↓-2.5
2/11 08:40	89.5	↓-2.7
2/11 08:50	86.9	↓-2.6
2/11 09:00	84.3	↓-2.6
2/11 09:10	81.7	↓-2.6
2/11 09:20	79.3	↓-2.4
2/11 09:30	76.9	↓-2.4
2/11 09:40	74.6	↓-2.3
2/11 09:50	72.5	↓-2.1
2/11 10:00	70.5	↓-2.0
2/11 10:10	68.8	↓-1.7
2/11 10:20	67.2	↓-1.6
2/11 10:30	65.8	↓-1.4
2/11 10:40	64.6	↓-1.2
2/11 10:50	63.7	↓-0.9
2/11 11:00	63.0	↓-0.7
2/11 11:10	62.6	↓-0.4
2/11 11:20	62.4	↓-0.2	干潮
2/11 11:30	62.4	0
2/11 11:40	62.7	↑0.3
2/11 11:50	63.2	↑0.5
2/11 12:00	64.0	↑0.8
2/11 12:10	65.0	↑1.0
2/11 12:20	66.2	↑1.2
2/11 12:30	67.7	↑1.5
2/11 12:40	69.3	↑1.6
2/11 12:50	71.1	↑1.8
2/11 13:00	73.1	↑2.0
2/11 13:10	75.2	↑2.1
2/11 13:20	77.5	↑2.3
2/11 13:30	79.9	↑2.4
2/11 13:40	82.3	↑2.4
2/11 13:50	84.9	↑2.6
2/11 14:00	87.6	↑2.7
2/11 14:10	90.2	↑2.6
2/11 14:20	92.9	↑2.7
2/11 14:30	95.6	↑2.7
2/11 14:40	98.3	↑2.7
2/11 14:50	100.9	↑2.6
2/11 15:00	103.5	↑2.6
2/11 15:10	106.0	↑2.5
2/11 15:20	108.4	↑2.4
2/11 15:30	110.6	↑2.2
2/11 15:40	112.7	↑2.1
2/11 15:50	114.7	↑2.0
2/11 16:00	116.4	↑1.7
2/11 16:10	118.0	↑1.6
2/11 16:20	119.3	↑1.3
2/11 16:30	120.4	↑1.1
2/11 16:40	121.2	↑0.8
2/11 16:50	121.8	↑0.6
2/11 17:00	122.1	↑0.3	満潮
2/11 17:10	122.1	0
2/11 17:20	121.8	↓-0.3
2/11 17:30	121.2	↓-0.6
2/11 17:40	120.3	↓-0.9
2/11 17:50	119.1	↓-1.2
2/11 18:00	117.6	↓-1.5
2/11 18:10	115.8	↓-1.8
2/11 18:20	113.6	↓-2.2
2/11 18:30	111.2	↓-2.4
2/11 18:40	108.5	↓-2.7
2/11 18:50	105.5	↓-3.0
2/11 19:00	102.2	↓-3.3
2/11 19:10	98.7	↓-3.5
2/11 19:20	95.0	↓-3.7
2/11 19:30	91.0	↓-4.0
2/11 19:40	86.9	↓-4.1
2/11 19:50	82.6	↓-4.3
2/11 20:00	78.2	↓-4.4
2/11 20:10	73.7	↓-4.5
2/11 20:20	69.1	↓-4.6
2/11 20:30	64.5	↓-4.6
2/11 20:40	59.9	↓-4.6
2/11 20:50	55.2	↓-4.7	最大潮位差
2/11 21:00	50.6	↓-4.6
2/11 21:10	46.1	↓-4.5
2/11 21:20	41.7	↓-4.4
2/11 21:30	37.5	↓-4.2
2/11 21:40	33.3	↓-4.2
2/11 21:50	29.4	↓-3.9
2/11 22:00	25.7	↓-3.7
2/11 22:10	22.2	↓-3.5
2/11 22:20	19.0	↓-3.2
2/11 22:30	16.0	↓-3.0
2/11 22:40	13.4	↓-2.6
2/11 22:50	11.0	↓-2.4
2/11 23:00	9.0	↓-2.0
2/11 23:10	7.3	↓-1.7
2/11 23:20	5.9	↓-1.4
2/11 23:30	4.9	↓-1.0
2/11 23:40	4.2	↓-0.7
2/11 23:50	3.9	↓-0.3	干潮