1 (金)	05:21	10:08	15:19	22:44
	123cm	82cm	136cm	-19cm
大潮 出 06:39 入 17:05 出 06:53 入 16:55

日立（茨城）2041年02月1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
2/1 00:00	8.0	↑3.9
2/1 00:10	12.2	↑4.2
2/1 00:20	16.6	↑4.4
2/1 00:30	21.2	↑4.6
2/1 00:40	25.9	↑4.7
2/1 00:50	30.8	↑4.9
2/1 01:00	35.7	↑4.9
2/1 01:10	40.7	↑5.0
2/1 01:20	45.8	↑5.1
2/1 01:30	50.9	↑5.1
2/1 01:40	55.9	↑5.0
2/1 01:50	60.9	↑5.0
2/1 02:00	65.8	↑4.9
2/1 02:10	70.7	↑4.9
2/1 02:20	75.4	↑4.7
2/1 02:30	80.0	↑4.6
2/1 02:40	84.4	↑4.4
2/1 02:50	88.7	↑4.3
2/1 03:00	92.8	↑4.1
2/1 03:10	96.6	↑3.8
2/1 03:20	100.3	↑3.7
2/1 03:30	103.7	↑3.4
2/1 03:40	106.8	↑3.1
2/1 03:50	109.7	↑2.9
2/1 04:00	112.3	↑2.6
2/1 04:10	114.7	↑2.4
2/1 04:20	116.7	↑2.0
2/1 04:30	118.4	↑1.7
2/1 04:40	119.8	↑1.4
2/1 04:50	120.9	↑1.1
2/1 05:00	121.7	↑0.8
2/1 05:10	122.1	↑0.4
2/1 05:20	122.3	↑0.2	満潮
2/1 05:30	122.1	↓-0.2
2/1 05:40	121.6	↓-0.5
2/1 05:50	120.9	↓-0.7
2/1 06:00	119.9	↓-1.0
2/1 06:10	118.7	↓-1.2
2/1 06:20	117.3	↓-1.4
2/1 06:30	115.6	↓-1.7
2/1 06:40	113.8	↓-1.8
2/1 06:50	111.9	↓-1.9
2/1 07:00	109.9	↓-2.0
2/1 07:10	107.8	↓-2.1
2/1 07:20	105.6	↓-2.2
2/1 07:30	103.4	↓-2.2
2/1 07:40	101.2	↓-2.2
2/1 07:50	99.0	↓-2.2
2/1 08:00	96.9	↓-2.1
2/1 08:10	94.8	↓-2.1
2/1 08:20	92.9	↓-1.9
2/1 08:30	91.0	↓-1.9
2/1 08:40	89.3	↓-1.7
2/1 08:50	87.7	↓-1.6
2/1 09:00	86.2	↓-1.5
2/1 09:10	84.9	↓-1.3
2/1 09:20	83.8	↓-1.1
2/1 09:30	82.9	↓-0.9
2/1 09:40	82.2	↓-0.7
2/1 09:50	81.7	↓-0.5
2/1 10:00	81.5	↓-0.2	干潮
2/1 10:10	81.4	↓-0.1
2/1 10:20	81.6	↑0.2
2/1 10:30	82.0	↑0.4
2/1 10:40	82.7	↑0.7
2/1 10:50	83.5	↑0.8
2/1 11:00	84.7	↑1.2
2/1 11:10	86.0	↑1.3
2/1 11:20	87.6	↑1.6
2/1 11:30	89.4	↑1.8
2/1 11:40	91.4	↑2.0
2/1 11:50	93.5	↑2.1
2/1 12:00	95.9	↑2.4
2/1 12:10	98.3	↑2.4
2/1 12:20	100.9	↑2.6
2/1 12:30	103.6	↑2.7
2/1 12:40	106.3	↑2.7
2/1 12:50	109.0	↑2.7
2/1 13:00	111.8	↑2.8
2/1 13:10	114.5	↑2.7
2/1 13:20	117.1	↑2.6
2/1 13:30	119.7	↑2.6
2/1 13:40	122.1	↑2.4
2/1 13:50	124.4	↑2.3
2/1 14:00	126.5	↑2.1
2/1 14:10	128.5	↑2.0
2/1 14:20	130.2	↑1.7
2/1 14:30	131.7	↑1.5
2/1 14:40	132.9	↑1.2
2/1 14:50	133.9	↑1.0
2/1 15:00	134.5	↑0.6
2/1 15:10	134.9	↑0.4	満潮
2/1 15:20	135.0	↑0.1
2/1 15:30	134.8	↓-0.2
2/1 15:40	134.3	↓-0.5
2/1 15:50	133.5	↓-0.8
2/1 16:00	132.3	↓-1.2
2/1 16:10	130.8	↓-1.5
2/1 16:20	129.0	↓-1.8
2/1 16:30	126.9	↓-2.1
2/1 16:40	124.4	↓-2.5
2/1 16:50	121.6	↓-2.8
2/1 17:00	118.4	↓-3.2
2/1 17:10	115.0	↓-3.4
2/1 17:20	111.2	↓-3.8
2/1 17:30	107.2	↓-4.0
2/1 17:40	102.9	↓-4.3
2/1 17:50	98.3	↓-4.6
2/1 18:00	93.5	↓-4.8
2/1 18:10	88.4	↓-5.1
2/1 18:20	83.2	↓-5.2
2/1 18:30	77.8	↓-5.4
2/1 18:40	72.3	↓-5.5
2/1 18:50	66.7	↓-5.6
2/1 19:00	61.1	↓-5.6
2/1 19:10	55.4	↓-5.7	最大潮位差
2/1 19:20	49.8	↓-5.6
2/1 19:30	44.1	↓-5.7	最大潮位差
2/1 19:40	38.6	↓-5.5
2/1 19:50	33.2	↓-5.4
2/1 20:00	27.9	↓-5.3
2/1 20:10	22.8	↓-5.1
2/1 20:20	17.9	↓-4.9
2/1 20:30	13.2	↓-4.7
2/1 20:40	8.7	↓-4.5
2/1 20:50	4.5	↓-4.2
2/1 21:00	0.6	↓-3.9
2/1 21:10	-3.0	↓-3.6
2/1 21:20	-6.3	↓-3.3
2/1 21:30	-9.2	↓-2.9
2/1 21:40	-11.9	↓-2.7
2/1 21:50	-14.1	↓-2.2
2/1 22:00	-16.0	↓-1.9
2/1 22:10	-17.5	↓-1.5
2/1 22:20	-18.6	↓-1.1
2/1 22:30	-19.4	↓-0.8
2/1 22:40	-19.7	↓-0.3	干潮
2/1 22:50	-19.6	↑0.1
2/1 23:00	-19.1	↑0.5
2/1 23:10	-18.2	↑0.9
2/1 23:20	-16.9	↑1.3
2/1 23:30	-15.2	↑1.7
2/1 23:40	-13.1	↑2.1
2/1 23:50	-10.6	↑2.5