2 (火)	03:57	10:25	16:45	22:40
	152cm	35cm	146cm	50cm
大潮 出 05:10 入 18:06 出 18:20 入 05:50

日立（茨城）2031年09月2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
9/2 00:00	82.8	↑3.5
9/2 00:10	86.5	↑3.7
9/2 00:20	90.3	↑3.8
9/2 00:30	94.2	↑3.9
9/2 00:40	98.3	↑4.1
9/2 00:50	102.4	↑4.1
9/2 01:00	106.5	↑4.1
9/2 01:10	110.6	↑4.1
9/2 01:20	114.6	↑4.0
9/2 01:30	118.6	↑4.0
9/2 01:40	122.4	↑3.8
9/2 01:50	126.1	↑3.7
9/2 02:00	129.6	↑3.5
9/2 02:10	132.9	↑3.3
9/2 02:20	136.0	↑3.1
9/2 02:30	138.8	↑2.8
9/2 02:40	141.4	↑2.6
9/2 02:50	143.7	↑2.3
9/2 03:00	145.7	↑2.0
9/2 03:10	147.4	↑1.7
9/2 03:20	148.8	↑1.4
9/2 03:30	149.9	↑1.1
9/2 03:40	150.6	↑0.7
9/2 03:50	151.0	↑0.4	満潮
9/2 04:00	151.0	0
9/2 04:10	150.7	↓-0.3
9/2 04:20	150.0	↓-0.7
9/2 04:30	148.9	↓-1.1
9/2 04:40	147.5	↓-1.4
9/2 04:50	145.7	↓-1.8
9/2 05:00	143.6	↓-2.1
9/2 05:10	141.1	↓-2.5
9/2 05:20	138.3	↓-2.8
9/2 05:30	135.2	↓-3.1
9/2 05:40	131.8	↓-3.4
9/2 05:50	128.1	↓-3.7
9/2 06:00	124.1	↓-4.0
9/2 06:10	120.0	↓-4.1
9/2 06:20	115.6	↓-4.4
9/2 06:30	111.1	↓-4.5
9/2 06:40	106.5	↓-4.6
9/2 06:50	101.7	↓-4.8	最大潮位差
9/2 07:00	97.0	↓-4.7
9/2 07:10	92.2	↓-4.8	最大潮位差
9/2 07:20	87.4	↓-4.8	最大潮位差
9/2 07:30	82.7	↓-4.7
9/2 07:40	78.1	↓-4.6
9/2 07:50	73.6	↓-4.5
9/2 08:00	69.2	↓-4.4
9/2 08:10	65.0	↓-4.2
9/2 08:20	61.0	↓-4.0
9/2 08:30	57.2	↓-3.8
9/2 08:40	53.7	↓-3.5
9/2 08:50	50.4	↓-3.3
9/2 09:00	47.5	↓-2.9
9/2 09:10	44.8	↓-2.7
9/2 09:20	42.4	↓-2.4
9/2 09:30	40.3	↓-2.1
9/2 09:40	38.5	↓-1.8
9/2 09:50	37.1	↓-1.4
9/2 10:00	36.1	↓-1.0
9/2 10:10	35.4	↓-0.7
9/2 10:20	35.0	↓-0.4	干潮
9/2 10:30	35.1	↑0.1
9/2 10:40	35.5	↑0.4
9/2 10:50	36.2	↑0.7
9/2 11:00	37.4	↑1.2
9/2 11:10	38.9	↑1.5
9/2 11:20	40.8	↑1.9
9/2 11:30	43.0	↑2.2
9/2 11:40	45.6	↑2.6
9/2 11:50	48.5	↑2.9
9/2 12:00	51.7	↑3.2
9/2 12:10	55.2	↑3.5
9/2 12:20	58.9	↑3.7
9/2 12:30	62.9	↑4.0
9/2 12:40	67.1	↑4.2
9/2 12:50	71.4	↑4.3
9/2 13:00	75.8	↑4.4
9/2 13:10	80.3	↑4.5
9/2 13:20	84.9	↑4.6
9/2 13:30	89.5	↑4.6
9/2 13:40	94.1	↑4.6
9/2 13:50	98.7	↑4.6
9/2 14:00	103.2	↑4.5
9/2 14:10	107.5	↑4.3
9/2 14:20	111.8	↑4.3
9/2 14:30	115.8	↑4.0
9/2 14:40	119.7	↑3.9
9/2 14:50	123.4	↑3.7
9/2 15:00	126.8	↑3.4
9/2 15:10	130.1	↑3.3
9/2 15:20	133.0	↑2.9
9/2 15:30	135.7	↑2.7
9/2 15:40	138.0	↑2.3
9/2 15:50	140.1	↑2.1
9/2 16:00	141.8	↑1.7
9/2 16:10	143.2	↑1.4
9/2 16:20	144.2	↑1.0
9/2 16:30	144.9	↑0.7
9/2 16:40	145.3	↑0.4	満潮
9/2 16:50	145.2	↓-0.1
9/2 17:00	144.8	↓-0.4
9/2 17:10	144.0	↓-0.8
9/2 17:20	142.8	↓-1.2
9/2 17:30	141.3	↓-1.5
9/2 17:40	139.4	↓-1.9
9/2 17:50	137.2	↓-2.2
9/2 18:00	134.7	↓-2.5
9/2 18:10	131.8	↓-2.9
9/2 18:20	128.7	↓-3.1
9/2 18:30	125.3	↓-3.4
9/2 18:40	121.6	↓-3.7
9/2 18:50	117.8	↓-3.8
9/2 19:00	113.8	↓-4.0
9/2 19:10	109.7	↓-4.1
9/2 19:20	105.5	↓-4.2
9/2 19:30	101.2	↓-4.3
9/2 19:40	97.0	↓-4.2
9/2 19:50	92.7	↓-4.3
9/2 20:00	88.5	↓-4.2
9/2 20:10	84.4	↓-4.1
9/2 20:20	80.4	↓-4.0
9/2 20:30	76.5	↓-3.9
9/2 20:40	72.8	↓-3.7
9/2 20:50	69.3	↓-3.5
9/2 21:00	66.0	↓-3.3
9/2 21:10	63.0	↓-3.0
9/2 21:20	60.3	↓-2.7
9/2 21:30	57.8	↓-2.5
9/2 21:40	55.6	↓-2.2
9/2 21:50	53.7	↓-1.9
9/2 22:00	52.1	↓-1.6
9/2 22:10	50.9	↓-1.2
9/2 22:20	50.0	↓-0.9
9/2 22:30	49.5	↓-0.5	干潮
9/2 22:40	49.3	↓-0.2	干潮
9/2 22:50	49.5	↑0.2
9/2 23:00	50.1	↑0.6
9/2 23:10	51.1	↑1.0
9/2 23:20	52.4	↑1.3
9/2 23:30	54.1	↑1.7
9/2 23:40	56.1	↑2.0
9/2 23:50	58.5	↑2.4