20 (月)	05:24	11:02	16:47	23:22
	124cm	43cm	132cm	7cm
大潮 出 06:20 入 17:24 出 06:53 入 18:54

日立（茨城）2034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	11.2	↑2.6
2/20 00:10	14.1	↑2.9
2/20 00:20	17.3	↑3.2
2/20 00:30	20.8	↑3.5
2/20 00:40	24.6	↑3.8
2/20 00:50	28.7	↑4.1
2/20 01:00	33.0	↑4.3
2/20 01:10	37.5	↑4.5
2/20 01:20	42.1	↑4.6
2/20 01:30	46.9	↑4.8
2/20 01:40	51.8	↑4.9
2/20 01:50	56.7	↑4.9
2/20 02:00	61.6	↑4.9
2/20 02:10	66.6	↑5.0
2/20 02:20	71.4	↑4.8
2/20 02:30	76.2	↑4.8
2/20 02:40	80.9	↑4.7
2/20 02:50	85.5	↑4.6
2/20 03:00	89.8	↑4.3
2/20 03:10	94.0	↑4.2
2/20 03:20	98.0	↑4.0
2/20 03:30	101.7	↑3.7
2/20 03:40	105.2	↑3.5
2/20 03:50	108.5	↑3.3
2/20 04:00	111.4	↑2.9
2/20 04:10	114.1	↑2.7
2/20 04:20	116.4	↑2.3
2/20 04:30	118.4	↑2.0
2/20 04:40	120.1	↑1.7
2/20 04:50	121.5	↑1.4
2/20 05:00	122.5	↑1.0
2/20 05:10	123.1	↑0.6
2/20 05:20	123.4	↑0.3	満潮
2/20 05:30	123.3	↓-0.1
2/20 05:40	122.9	↓-0.4
2/20 05:50	122.1	↓-0.8
2/20 06:00	120.9	↓-1.2
2/20 06:10	119.4	↓-1.5
2/20 06:20	117.6	↓-1.8
2/20 06:30	115.5	↓-2.1
2/20 06:40	113.0	↓-2.5
2/20 06:50	110.3	↓-2.7
2/20 07:00	107.4	↓-2.9
2/20 07:10	104.2	↓-3.2
2/20 07:20	100.9	↓-3.3
2/20 07:30	97.3	↓-3.6
2/20 07:40	93.7	↓-3.6
2/20 07:50	90.0	↓-3.7
2/20 08:00	86.2	↓-3.8
2/20 08:10	82.4	↓-3.8
2/20 08:20	78.7	↓-3.7
2/20 08:30	75.0	↓-3.7
2/20 08:40	71.4	↓-3.6
2/20 08:50	67.9	↓-3.5
2/20 09:00	64.5	↓-3.4
2/20 09:10	61.3	↓-3.2
2/20 09:20	58.3	↓-3.0
2/20 09:30	55.5	↓-2.8
2/20 09:40	53.0	↓-2.5
2/20 09:50	50.7	↓-2.3
2/20 10:00	48.7	↓-2.0
2/20 10:10	46.9	↓-1.8
2/20 10:20	45.4	↓-1.5
2/20 10:30	44.3	↓-1.1
2/20 10:40	43.5	↓-0.8
2/20 10:50	42.9	↓-0.6
2/20 11:00	42.8	↓-0.1	干潮
2/20 11:10	42.9	↑0.1
2/20 11:20	43.4	↑0.5
2/20 11:30	44.2	↑0.8
2/20 11:40	45.4	↑1.2
2/20 11:50	46.9	↑1.5
2/20 12:00	48.7	↑1.8
2/20 12:10	50.9	↑2.2
2/20 12:20	53.3	↑2.4
2/20 12:30	56.0	↑2.7
2/20 12:40	59.0	↑3.0
2/20 12:50	62.3	↑3.3
2/20 13:00	65.8	↑3.5
2/20 13:10	69.4	↑3.6
2/20 13:20	73.3	↑3.9
2/20 13:30	77.2	↑3.9
2/20 13:40	81.2	↑4.0
2/20 13:50	85.3	↑4.1
2/20 14:00	89.4	↑4.1
2/20 14:10	93.5	↑4.1
2/20 14:20	97.5	↑4.0
2/20 14:30	101.4	↑3.9
2/20 14:40	105.2	↑3.8
2/20 14:50	108.8	↑3.6
2/20 15:00	112.2	↑3.4
2/20 15:10	115.4	↑3.2
2/20 15:20	118.4	↑3.0
2/20 15:30	121.1	↑2.7
2/20 15:40	123.5	↑2.4
2/20 15:50	125.6	↑2.1
2/20 16:00	127.4	↑1.8
2/20 16:10	128.8	↑1.4
2/20 16:20	129.9	↑1.1
2/20 16:30	130.7	↑0.8
2/20 16:40	131.1	↑0.4	満潮
2/20 16:50	131.1	0
2/20 17:00	130.8	↓-0.3
2/20 17:10	130.1	↓-0.7
2/20 17:20	129.1	↓-1.0
2/20 17:30	127.7	↓-1.4
2/20 17:40	125.9	↓-1.8
2/20 17:50	123.7	↓-2.2
2/20 18:00	121.2	↓-2.5
2/20 18:10	118.4	↓-2.8
2/20 18:20	115.2	↓-3.2
2/20 18:30	111.7	↓-3.5
2/20 18:40	108.0	↓-3.7
2/20 18:50	103.9	↓-4.1
2/20 19:00	99.6	↓-4.3
2/20 19:10	95.1	↓-4.5
2/20 19:20	90.4	↓-4.7
2/20 19:30	85.6	↓-4.8
2/20 19:40	80.7	↓-4.9
2/20 19:50	75.6	↓-5.1	最大潮位差
2/20 20:00	70.6	↓-5.0
2/20 20:10	65.5	↓-5.1	最大潮位差
2/20 20:20	60.4	↓-5.1	最大潮位差
2/20 20:30	55.4	↓-5.0
2/20 20:40	50.6	↓-4.8
2/20 20:50	45.8	↓-4.8
2/20 21:00	41.2	↓-4.6
2/20 21:10	36.9	↓-4.3
2/20 21:20	32.7	↓-4.2
2/20 21:30	28.8	↓-3.9
2/20 21:40	25.1	↓-3.7
2/20 21:50	21.8	↓-3.3
2/20 22:00	18.7	↓-3.1
2/20 22:10	16.0	↓-2.7
2/20 22:20	13.6	↓-2.4
2/20 22:30	11.5	↓-2.1
2/20 22:40	9.8	↓-1.7
2/20 22:50	8.5	↓-1.3
2/20 23:00	7.5	↓-1.0
2/20 23:10	6.9	↓-0.6
2/20 23:20	6.7	↓-0.2	干潮
2/20 23:30	6.9	↑0.2
2/20 23:40	7.5	↑0.6
2/20 23:50	8.4	↑0.9