01 (水)	03:58	09:59	15:58	22:19
	147cm	56cm	146cm	31cm
大潮 出 05:33 入 17:23 出 17:26 入 05:44

日立（茨城）2031年10月01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
10/1 00:00	73.1	↑4.2
10/1 00:10	77.4	↑4.3
10/1 00:20	81.8	↑4.4
10/1 00:30	86.2	↑4.4
10/1 00:40	90.8	↑4.6
10/1 00:50	95.3	↑4.5
10/1 01:00	99.8	↑4.5
10/1 01:10	104.2	↑4.4
10/1 01:20	108.5	↑4.3
10/1 01:30	112.7	↑4.2
10/1 01:40	116.8	↑4.1
10/1 01:50	120.6	↑3.8
10/1 02:00	124.3	↑3.7
10/1 02:10	127.8	↑3.5
10/1 02:20	131.0	↑3.2
10/1 02:30	133.9	↑2.9
10/1 02:40	136.6	↑2.7
10/1 02:50	139.0	↑2.4
10/1 03:00	141.1	↑2.1
10/1 03:10	142.8	↑1.7
10/1 03:20	144.3	↑1.5
10/1 03:30	145.4	↑1.1
10/1 03:40	146.2	↑0.8
10/1 03:50	146.6	↑0.4	満潮
10/1 04:00	146.7	↑0.1
10/1 04:10	146.4	↓-0.3
10/1 04:20	145.8	↓-0.6
10/1 04:30	144.8	↓-1.0
10/1 04:40	143.5	↓-1.3
10/1 04:50	141.8	↓-1.7
10/1 05:00	139.8	↓-2.0
10/1 05:10	137.5	↓-2.3
10/1 05:20	134.9	↓-2.6
10/1 05:30	132.1	↓-2.8
10/1 05:40	128.9	↓-3.2
10/1 05:50	125.6	↓-3.3
10/1 06:00	122.0	↓-3.6
10/1 06:10	118.3	↓-3.7
10/1 06:20	114.5	↓-3.8
10/1 06:30	110.6	↓-3.9
10/1 06:40	106.6	↓-4.0
10/1 06:50	102.6	↓-4.0
10/1 07:00	98.6	↓-4.0
10/1 07:10	94.6	↓-4.0
10/1 07:20	90.7	↓-3.9
10/1 07:30	86.9	↓-3.8
10/1 07:40	83.2	↓-3.7
10/1 07:50	79.7	↓-3.5
10/1 08:00	76.3	↓-3.4
10/1 08:10	73.2	↓-3.1
10/1 08:20	70.2	↓-3.0
10/1 08:30	67.5	↓-2.7
10/1 08:40	65.0	↓-2.5
10/1 08:50	62.8	↓-2.2
10/1 09:00	60.9	↓-1.9
10/1 09:10	59.2	↓-1.7
10/1 09:20	57.9	↓-1.3
10/1 09:30	56.8	↓-1.1
10/1 09:40	56.0	↓-0.8
10/1 09:50	55.6	↓-0.4	干潮
10/1 10:00	55.5	↓-0.1
10/1 10:10	55.7	↑0.2
10/1 10:20	56.3	↑0.6
10/1 10:30	57.1	↑0.8
10/1 10:40	58.4	↑1.3
10/1 10:50	59.9	↑1.5
10/1 11:00	61.7	↑1.8
10/1 11:10	63.9	↑2.2
10/1 11:20	66.3	↑2.4
10/1 11:30	69.1	↑2.8
10/1 11:40	72.0	↑2.9
10/1 11:50	75.2	↑3.2
10/1 12:00	78.7	↑3.5
10/1 12:10	82.2	↑3.5
10/1 12:20	86.0	↑3.8
10/1 12:30	89.9	↑3.9
10/1 12:40	93.8	↑3.9
10/1 12:50	97.8	↑4.0
10/1 13:00	101.8	↑4.0
10/1 13:10	105.8	↑4.0
10/1 13:20	109.7	↑3.9
10/1 13:30	113.6	↑3.9
10/1 13:40	117.3	↑3.7
10/1 13:50	120.9	↑3.6
10/1 14:00	124.4	↑3.5
10/1 14:10	127.6	↑3.2
10/1 14:20	130.7	↑3.1
10/1 14:30	133.5	↑2.8
10/1 14:40	136.1	↑2.6
10/1 14:50	138.4	↑2.3
10/1 15:00	140.4	↑2.0
10/1 15:10	142.1	↑1.7
10/1 15:20	143.5	↑1.4
10/1 15:30	144.6	↑1.1
10/1 15:40	145.4	↑0.8
10/1 15:50	145.8	↑0.4	満潮
10/1 16:00	145.9	↑0.1
10/1 16:10	145.7	↓-0.2
10/1 16:20	145.0	↓-0.7
10/1 16:30	144.0	↓-1.0
10/1 16:40	142.7	↓-1.3
10/1 16:50	140.9	↓-1.8
10/1 17:00	138.9	↓-2.0
10/1 17:10	136.4	↓-2.5
10/1 17:20	133.7	↓-2.7
10/1 17:30	130.6	↓-3.1
10/1 17:40	127.2	↓-3.4
10/1 17:50	123.5	↓-3.7
10/1 18:00	119.5	↓-4.0
10/1 18:10	115.3	↓-4.2
10/1 18:20	111.0	↓-4.3
10/1 18:30	106.4	↓-4.6
10/1 18:40	101.8	↓-4.6
10/1 18:50	97.0	↓-4.8
10/1 19:00	92.2	↓-4.8
10/1 19:10	87.3	↓-4.9	最大潮位差
10/1 19:20	82.5	↓-4.8
10/1 19:30	77.7	↓-4.8
10/1 19:40	73.0	↓-4.7
10/1 19:50	68.4	↓-4.6
10/1 20:00	64.0	↓-4.4
10/1 20:10	59.8	↓-4.2
10/1 20:20	55.8	↓-4.0
10/1 20:30	52.0	↓-3.8
10/1 20:40	48.4	↓-3.6
10/1 20:50	45.2	↓-3.2
10/1 21:00	42.2	↓-3.0
10/1 21:10	39.5	↓-2.7
10/1 21:20	37.2	↓-2.3
10/1 21:30	35.2	↓-2.0
10/1 21:40	33.6	↓-1.6
10/1 21:50	32.3	↓-1.3
10/1 22:00	31.4	↓-0.9
10/1 22:10	30.9	↓-0.5	干潮
10/1 22:20	30.8	↓-0.1
10/1 22:30	31.1	↑0.3
10/1 22:40	31.7	↑0.6
10/1 22:50	32.8	↑1.1
10/1 23:00	34.2	↑1.4
10/1 23:10	36.1	↑1.9
10/1 23:20	38.3	↑2.2
10/1 23:30	40.9	↑2.6
10/1 23:40	43.8	↑2.9
10/1 23:50	47.1	↑3.3