14 (火)	05:55	11:14	16:50	23:42
	121cm	56cm	133cm	-2cm
中潮 出 06:28 入 17:18 出 07:45 入 19:06

日立（茨城）2040年02月14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
2/14 00:00	-5.8	↑2.0
2/14 00:10	-3.5	↑2.3
2/14 00:20	-0.8	↑2.7
2/14 00:30	2.3	↑3.1
2/14 00:40	5.7	↑3.4
2/14 00:50	9.4	↑3.7
2/14 01:00	13.3	↑3.9
2/14 01:10	17.6	↑4.3
2/14 01:20	22.0	↑4.4
2/14 01:30	26.7	↑4.7
2/14 01:40	31.5	↑4.8
2/14 01:50	36.4	↑4.9
2/14 02:00	41.4	↑5.0
2/14 02:10	46.5	↑5.1
2/14 02:20	51.6	↑5.1
2/14 02:30	56.6	↑5.0
2/14 02:40	61.7	↑5.1
2/14 02:50	66.7	↑5.0
2/14 03:00	71.6	↑4.9
2/14 03:10	76.3	↑4.7
2/14 03:20	81.0	↑4.7
2/14 03:30	85.4	↑4.4
2/14 03:40	89.7	↑4.3
2/14 03:50	93.8	↑4.1
2/14 04:00	97.6	↑3.8
2/14 04:10	101.2	↑3.6
2/14 04:20	104.5	↑3.3
2/14 04:30	107.6	↑3.1
2/14 04:40	110.3	↑2.7
2/14 04:50	112.7	↑2.4
2/14 05:00	114.8	↑2.1
2/14 05:10	116.6	↑1.8
2/14 05:20	118.0	↑1.4
2/14 05:30	119.1	↑1.1
2/14 05:40	119.7	↑0.6
2/14 05:50	120.1	↑0.4	満潮
2/14 06:00	120.1	0
2/14 06:10	119.7	↓-0.4
2/14 06:20	118.9	↓-0.8
2/14 06:30	117.9	↓-1.0
2/14 06:40	116.5	↓-1.4
2/14 06:50	114.8	↓-1.7
2/14 07:00	112.8	↓-2.0
2/14 07:10	110.6	↓-2.2
2/14 07:20	108.2	↓-2.4
2/14 07:30	105.5	↓-2.7
2/14 07:40	102.7	↓-2.8
2/14 07:50	99.8	↓-2.9
2/14 08:00	96.7	↓-3.1
2/14 08:10	93.6	↓-3.1
2/14 08:20	90.4	↓-3.2
2/14 08:30	87.2	↓-3.2
2/14 08:40	84.1	↓-3.1
2/14 08:50	81.0	↓-3.1
2/14 09:00	77.9	↓-3.1
2/14 09:10	75.0	↓-2.9
2/14 09:20	72.2	↓-2.8
2/14 09:30	69.5	↓-2.7
2/14 09:40	67.0	↓-2.5
2/14 09:50	64.7	↓-2.3
2/14 10:00	62.6	↓-2.1
2/14 10:10	60.8	↓-1.8
2/14 10:20	59.1	↓-1.7
2/14 10:30	57.8	↓-1.3
2/14 10:40	56.7	↓-1.1
2/14 10:50	55.8	↓-0.9
2/14 11:00	55.3	↓-0.5
2/14 11:10	55.1	↓-0.2	干潮
2/14 11:20	55.1	0
2/14 11:30	55.5	↑0.4
2/14 11:40	56.2	↑0.7
2/14 11:50	57.2	↑1.0
2/14 12:00	58.6	↑1.4
2/14 12:10	60.2	↑1.6
2/14 12:20	62.1	↑1.9
2/14 12:30	64.3	↑2.2
2/14 12:40	66.8	↑2.5
2/14 12:50	69.5	↑2.7
2/14 13:00	72.5	↑3.0
2/14 13:10	75.6	↑3.1
2/14 13:20	78.9	↑3.3
2/14 13:30	82.3	↑3.4
2/14 13:40	85.9	↑3.6
2/14 13:50	89.5	↑3.6
2/14 14:00	93.1	↑3.6
2/14 14:10	96.8	↑3.7
2/14 14:20	100.4	↑3.6
2/14 14:30	104.0	↑3.6
2/14 14:40	107.4	↑3.4
2/14 14:50	110.7	↑3.3
2/14 15:00	113.9	↑3.2
2/14 15:10	116.9	↑3.0
2/14 15:20	119.6	↑2.7
2/14 15:30	122.2	↑2.6
2/14 15:40	124.5	↑2.3
2/14 15:50	126.5	↑2.0
2/14 16:00	128.3	↑1.8
2/14 16:10	129.7	↑1.4
2/14 16:20	130.9	↑1.2
2/14 16:30	131.7	↑0.8
2/14 16:40	132.1	↑0.4	満潮
2/14 16:50	132.3	↑0.2	満潮
2/14 17:00	132.1	↓-0.2
2/14 17:10	131.5	↓-0.6
2/14 17:20	130.6	↓-0.9
2/14 17:30	129.3	↓-1.3
2/14 17:40	127.6	↓-1.7
2/14 17:50	125.6	↓-2.0
2/14 18:00	123.2	↓-2.4
2/14 18:10	120.5	↓-2.7
2/14 18:20	117.5	↓-3.0
2/14 18:30	114.1	↓-3.4
2/14 18:40	110.4	↓-3.7
2/14 18:50	106.4	↓-4.0
2/14 19:00	102.2	↓-4.2
2/14 19:10	97.7	↓-4.5
2/14 19:20	93.0	↓-4.7
2/14 19:30	88.2	↓-4.8
2/14 19:40	83.2	↓-5.0
2/14 19:50	78.0	↓-5.2
2/14 20:00	72.8	↓-5.2
2/14 20:10	67.6	↓-5.2
2/14 20:20	62.4	↓-5.2
2/14 20:30	57.1	↓-5.3	最大潮位差
2/14 20:40	52.0	↓-5.1
2/14 20:50	46.9	↓-5.1
2/14 21:00	42.0	↓-4.9
2/14 21:10	37.2	↓-4.8
2/14 21:20	32.5	↓-4.7
2/14 21:30	28.1	↓-4.4
2/14 21:40	23.9	↓-4.2
2/14 21:50	20.0	↓-3.9
2/14 22:00	16.3	↓-3.7
2/14 22:10	12.9	↓-3.4
2/14 22:20	9.8	↓-3.1
2/14 22:30	7.0	↓-2.8
2/14 22:40	4.6	↓-2.4
2/14 22:50	2.5	↓-2.1
2/14 23:00	0.7	↓-1.8
2/14 23:10	-0.7	↓-1.4
2/14 23:20	-1.7	↓-1.0
2/14 23:30	-2.3	↓-0.6
2/14 23:40	-2.6	↓-0.3	干潮
2/14 23:50	-2.4	↑0.2