2 (月)	06:34	00:13	18:08	12:13
	137cm	43cm	151cm	72cm
中潮 出 05:10 入 18:06 出 09:35 入 20:17

日立（茨城）2030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	42.5	↓-0.6
9/2 00:10	42.3	↓-0.2	干潮
9/2 00:20	42.4	↑0.1
9/2 00:30	42.9	↑0.5
9/2 00:40	43.6	↑0.7
9/2 00:50	44.7	↑1.1
9/2 01:00	46.1	↑1.4
9/2 01:10	47.8	↑1.7
9/2 01:20	49.8	↑2.0
9/2 01:30	52.1	↑2.3
9/2 01:40	54.6	↑2.5
9/2 01:50	57.4	↑2.8
9/2 02:00	60.4	↑3.0
9/2 02:10	63.7	↑3.3
9/2 02:20	67.1	↑3.4
9/2 02:30	70.7	↑3.6
9/2 02:40	74.4	↑3.7
9/2 02:50	78.3	↑3.9
9/2 03:00	82.2	↑3.9
9/2 03:10	86.1	↑3.9
9/2 03:20	90.1	↑4.0
9/2 03:30	94.0	↑3.9
9/2 03:40	98.0	↑4.0
9/2 03:50	101.8	↑3.8
9/2 04:00	105.5	↑3.7
9/2 04:10	109.1	↑3.6
9/2 04:20	112.6	↑3.5
9/2 04:30	115.9	↑3.3
9/2 04:40	119.0	↑3.1
9/2 04:50	121.9	↑2.9
9/2 05:00	124.5	↑2.6
9/2 05:10	126.9	↑2.4
9/2 05:20	129.1	↑2.2
9/2 05:30	131.0	↑1.9
9/2 05:40	132.7	↑1.7
9/2 05:50	134.0	↑1.3
9/2 06:00	135.1	↑1.1
9/2 06:10	135.9	↑0.8
9/2 06:20	136.4	↑0.5
9/2 06:30	136.7	↑0.3	満潮
9/2 06:40	136.6	↓-0.1
9/2 06:50	136.3	↓-0.3
9/2 07:00	135.7	↓-0.6
9/2 07:10	134.8	↓-0.9
9/2 07:20	133.7	↓-1.1
9/2 07:30	132.3	↓-1.4
9/2 07:40	130.7	↓-1.6
9/2 07:50	128.8	↓-1.9
9/2 08:00	126.7	↓-2.1
9/2 08:10	124.4	↓-2.3
9/2 08:20	121.9	↓-2.5
9/2 08:30	119.3	↓-2.6
9/2 08:40	116.5	↓-2.8
9/2 08:50	113.7	↓-2.8
9/2 09:00	110.7	↓-3.0
9/2 09:10	107.7	↓-3.0
9/2 09:20	104.6	↓-3.1
9/2 09:30	101.6	↓-3.0
9/2 09:40	98.6	↓-3.0
9/2 09:50	95.6	↓-3.0
9/2 10:00	92.7	↓-2.9
9/2 10:10	89.9	↓-2.8
9/2 10:20	87.3	↓-2.6
9/2 10:30	84.8	↓-2.5
9/2 10:40	82.5	↓-2.3
9/2 10:50	80.3	↓-2.2
9/2 11:00	78.4	↓-1.9
9/2 11:10	76.7	↓-1.7
9/2 11:20	75.2	↓-1.5
9/2 11:30	74.0	↓-1.2
9/2 11:40	73.0	↓-1.0
9/2 11:50	72.2	↓-0.8
9/2 12:00	71.8	↓-0.4
9/2 12:10	71.6	↓-0.2	干潮
9/2 12:20	71.7	↑0.1
9/2 12:30	72.0	↑0.3
9/2 12:40	72.7	↑0.7
9/2 12:50	73.6	↑0.9
9/2 13:00	74.8	↑1.2
9/2 13:10	76.2	↑1.4
9/2 13:20	77.9	↑1.7
9/2 13:30	79.9	↑2.0
9/2 13:40	82.1	↑2.2
9/2 13:50	84.5	↑2.4
9/2 14:00	87.2	↑2.7
9/2 14:10	90.0	↑2.8
9/2 14:20	93.1	↑3.1
9/2 14:30	96.3	↑3.2
9/2 14:40	99.6	↑3.3
9/2 14:50	103.0	↑3.4
9/2 15:00	106.5	↑3.5
9/2 15:10	110.1	↑3.6
9/2 15:20	113.6	↑3.5
9/2 15:30	117.2	↑3.6
9/2 15:40	120.7	↑3.5
9/2 15:50	124.2	↑3.5
9/2 16:00	127.5	↑3.3
9/2 16:10	130.7	↑3.2
9/2 16:20	133.8	↑3.1
9/2 16:30	136.6	↑2.8
9/2 16:40	139.3	↑2.7
9/2 16:50	141.7	↑2.4
9/2 17:00	143.8	↑2.1
9/2 17:10	145.7	↑1.9
9/2 17:20	147.3	↑1.6
9/2 17:30	148.7	↑1.4
9/2 17:40	149.7	↑1.0
9/2 17:50	150.4	↑0.7
9/2 18:00	150.8	↑0.4	満潮
9/2 18:10	150.8	0
9/2 18:20	150.6	↓-0.2
9/2 18:30	150.0	↓-0.6
9/2 18:40	149.1	↓-0.9
9/2 18:50	147.9	↓-1.2
9/2 19:00	146.3	↓-1.6
9/2 19:10	144.5	↓-1.8
9/2 19:20	142.4	↓-2.1
9/2 19:30	139.9	↓-2.5
9/2 19:40	137.2	↓-2.7
9/2 19:50	134.3	↓-2.9
9/2 20:00	131.1	↓-3.2
9/2 20:10	127.7	↓-3.4
9/2 20:20	124.0	↓-3.7
9/2 20:30	120.2	↓-3.8
9/2 20:40	116.2	↓-4.0
9/2 20:50	112.1	↓-4.1
9/2 21:00	107.9	↓-4.2
9/2 21:10	103.6	↓-4.3
9/2 21:20	99.3	↓-4.3
9/2 21:30	94.9	↓-4.4	最大潮位差
9/2 21:40	90.6	↓-4.3
9/2 21:50	86.2	↓-4.4	最大潮位差
9/2 22:00	82.0	↓-4.2
9/2 22:10	77.8	↓-4.2
9/2 22:20	73.8	↓-4.0
9/2 22:30	69.9	↓-3.9
9/2 22:40	66.2	↓-3.7
9/2 22:50	62.7	↓-3.5
9/2 23:00	59.4	↓-3.3
9/2 23:10	56.3	↓-3.1
9/2 23:20	53.4	↓-2.9
9/2 23:30	50.8	↓-2.6
9/2 23:40	48.5	↓-2.3
9/2 23:50	46.5	↓-2.0