19 (日)	04:58	10:25	16:04	22:49
	121cm	52cm	131cm	2cm
大潮 出 06:22 入 17:23 出 06:13 入 17:46

日立（茨城）2034年02月19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
2/19 00:00	20.0	↑3.5
2/19 00:10	23.8	↑3.8
2/19 00:20	27.8	↑4.0
2/19 00:30	32.0	↑4.2
2/19 00:40	36.3	↑4.3
2/19 00:50	40.9	↑4.6
2/19 01:00	45.5	↑4.6
2/19 01:10	50.2	↑4.7
2/19 01:20	55.0	↑4.8
2/19 01:30	59.7	↑4.7
2/19 01:40	64.5	↑4.8
2/19 01:50	69.2	↑4.7
2/19 02:00	73.8	↑4.6
2/19 02:10	78.3	↑4.5
2/19 02:20	82.7	↑4.4
2/19 02:30	86.9	↑4.2
2/19 02:40	91.0	↑4.1
2/19 02:50	94.8	↑3.8
2/19 03:00	98.5	↑3.7
2/19 03:10	101.9	↑3.4
2/19 03:20	105.1	↑3.2
2/19 03:30	108.0	↑2.9
2/19 03:40	110.6	↑2.6
2/19 03:50	113.0	↑2.4
2/19 04:00	115.0	↑2.0
2/19 04:10	116.7	↑1.7
2/19 04:20	118.2	↑1.5
2/19 04:30	119.3	↑1.1
2/19 04:40	120.0	↑0.7
2/19 04:50	120.4	↑0.4	満潮
2/19 05:00	120.5	↑0.1
2/19 05:10	120.3	↓-0.2
2/19 05:20	119.7	↓-0.6
2/19 05:30	118.7	↓-1.0
2/19 05:40	117.5	↓-1.2
2/19 05:50	115.9	↓-1.6
2/19 06:00	114.0	↓-1.9
2/19 06:10	111.9	↓-2.1
2/19 06:20	109.5	↓-2.4
2/19 06:30	106.9	↓-2.6
2/19 06:40	104.1	↓-2.8
2/19 06:50	101.1	↓-3.0
2/19 07:00	98.0	↓-3.1
2/19 07:10	94.8	↓-3.2
2/19 07:20	91.5	↓-3.3
2/19 07:30	88.2	↓-3.3
2/19 07:40	84.9	↓-3.3
2/19 07:50	81.6	↓-3.3
2/19 08:00	78.3	↓-3.3
2/19 08:10	75.2	↓-3.1
2/19 08:20	72.1	↓-3.1
2/19 08:30	69.3	↓-2.8
2/19 08:40	66.5	↓-2.8
2/19 08:50	64.0	↓-2.5
2/19 09:00	61.6	↓-2.4
2/19 09:10	59.5	↓-2.1
2/19 09:20	57.6	↓-1.9
2/19 09:30	55.9	↓-1.7
2/19 09:40	54.5	↓-1.4
2/19 09:50	53.4	↓-1.1
2/19 10:00	52.6	↓-0.8
2/19 10:10	52.0	↓-0.6
2/19 10:20	51.7	↓-0.3	干潮
2/19 10:30	51.8	↑0.1
2/19 10:40	52.1	↑0.3
2/19 10:50	52.8	↑0.7
2/19 11:00	53.7	↑0.9
2/19 11:10	55.0	↑1.3
2/19 11:20	56.6	↑1.6
2/19 11:30	58.4	↑1.8
2/19 11:40	60.6	↑2.2
2/19 11:50	63.0	↑2.4
2/19 12:00	65.7	↑2.7
2/19 12:10	68.6	↑2.9
2/19 12:20	71.7	↑3.1
2/19 12:30	75.0	↑3.3
2/19 12:40	78.4	↑3.4
2/19 12:50	82.0	↑3.6
2/19 13:00	85.7	↑3.7
2/19 13:10	89.4	↑3.7
2/19 13:20	93.1	↑3.7
2/19 13:30	96.8	↑3.7
2/19 13:40	100.5	↑3.7
2/19 13:50	104.0	↑3.5
2/19 14:00	107.5	↑3.5
2/19 14:10	110.8	↑3.3
2/19 14:20	113.9	↑3.1
2/19 14:30	116.8	↑2.9
2/19 14:40	119.4	↑2.6
2/19 14:50	121.9	↑2.5
2/19 15:00	124.0	↑2.1
2/19 15:10	125.9	↑1.9
2/19 15:20	127.5	↑1.6
2/19 15:30	128.7	↑1.2
2/19 15:40	129.7	↑1.0
2/19 15:50	130.3	↑0.6
2/19 16:00	130.5	↑0.2	満潮
2/19 16:10	130.5	0
2/19 16:20	130.0	↓-0.5
2/19 16:30	129.2	↓-0.8
2/19 16:40	128.1	↓-1.1
2/19 16:50	126.6	↓-1.5
2/19 17:00	124.8	↓-1.8
2/19 17:10	122.6	↓-2.2
2/19 17:20	120.1	↓-2.5
2/19 17:30	117.2	↓-2.9
2/19 17:40	114.0	↓-3.2
2/19 17:50	110.5	↓-3.5
2/19 18:00	106.7	↓-3.8
2/19 18:10	102.6	↓-4.1
2/19 18:20	98.3	↓-4.3
2/19 18:30	93.8	↓-4.5
2/19 18:40	89.1	↓-4.7
2/19 18:50	84.2	↓-4.9
2/19 19:00	79.2	↓-5.0
2/19 19:10	74.1	↓-5.1
2/19 19:20	68.9	↓-5.2	最大潮位差
2/19 19:30	63.8	↓-5.1
2/19 19:40	58.6	↓-5.2	最大潮位差
2/19 19:50	53.5	↓-5.1
2/19 20:00	48.5	↓-5.0
2/19 20:10	43.7	↓-4.8
2/19 20:20	38.9	↓-4.8
2/19 20:30	34.4	↓-4.5
2/19 20:40	30.1	↓-4.3
2/19 20:50	26.0	↓-4.1
2/19 21:00	22.1	↓-3.9
2/19 21:10	18.6	↓-3.5
2/19 21:20	15.3	↓-3.3
2/19 21:30	12.3	↓-3.0
2/19 21:40	9.7	↓-2.6
2/19 21:50	7.4	↓-2.3
2/19 22:00	5.5	↓-1.9
2/19 22:10	3.9	↓-1.6
2/19 22:20	2.6	↓-1.3
2/19 22:30	1.8	↓-0.8
2/19 22:40	1.3	↓-0.5	干潮
2/19 22:50	1.2	↓-0.1
2/19 23:00	1.5	↑0.3
2/19 23:10	2.1	↑0.6
2/19 23:20	3.2	↑1.1
2/19 23:30	4.6	↑1.4
2/19 23:40	6.4	↑1.8
2/19 23:50	8.6	↑2.2