1 (土)	05:21	10:38	16:10	23:10
	138cm	82cm	146cm	14cm
大潮 出 06:00 入 16:43 出 18:04 入 07:38

日立（茨城）2031年11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
11/1 00:00	27.4	↑3.0
11/1 00:10	30.8	↑3.4
11/1 00:20	34.5	↑3.7
11/1 00:30	38.5	↑4.0
11/1 00:40	42.6	↑4.1
11/1 00:50	47.1	↑4.5
11/1 01:00	51.6	↑4.5
11/1 01:10	56.4	↑4.8
11/1 01:20	61.2	↑4.8
11/1 01:30	66.1	↑4.9
11/1 01:40	71.0	↑4.9
11/1 01:50	76.0	↑5.0
11/1 02:00	80.9	↑4.9
11/1 02:10	85.7	↑4.8
11/1 02:20	90.5	↑4.8
11/1 02:30	95.1	↑4.6
11/1 02:40	99.6	↑4.5
11/1 02:50	103.9	↑4.3
11/1 03:00	108.0	↑4.1
11/1 03:10	111.9	↑3.9
11/1 03:20	115.5	↑3.6
11/1 03:30	119.0	↑3.5
11/1 03:40	122.1	↑3.1
11/1 03:50	125.1	↑3.0
11/1 04:00	127.7	↑2.6
11/1 04:10	130.0	↑2.3
11/1 04:20	132.0	↑2.0
11/1 04:30	133.8	↑1.8
11/1 04:40	135.2	↑1.4
11/1 04:50	136.3	↑1.1
11/1 05:00	137.1	↑0.8
11/1 05:10	137.6	↑0.5
11/1 05:20	137.7	↑0.1	満潮
11/1 05:30	137.6	↓-0.1
11/1 05:40	137.1	↓-0.5
11/1 05:50	136.3	↓-0.8
11/1 06:00	135.2	↓-1.1
11/1 06:10	133.9	↓-1.3
11/1 06:20	132.3	↓-1.6
11/1 06:30	130.4	↓-1.9
11/1 06:40	128.4	↓-2.0
11/1 06:50	126.1	↓-2.3
11/1 07:00	123.7	↓-2.4
11/1 07:10	121.1	↓-2.6
11/1 07:20	118.5	↓-2.6
11/1 07:30	115.7	↓-2.8
11/1 07:40	113.0	↓-2.7
11/1 07:50	110.2	↓-2.8
11/1 08:00	107.4	↓-2.8
11/1 08:10	104.6	↓-2.8
11/1 08:20	102.0	↓-2.6
11/1 08:30	99.4	↓-2.6
11/1 08:40	96.9	↓-2.5
11/1 08:50	94.6	↓-2.3
11/1 09:00	92.4	↓-2.2
11/1 09:10	90.4	↓-2.0
11/1 09:20	88.6	↓-1.8
11/1 09:30	87.0	↓-1.6
11/1 09:40	85.6	↓-1.4
11/1 09:50	84.4	↓-1.2
11/1 10:00	83.4	↓-1.0
11/1 10:10	82.6	↓-0.8
11/1 10:20	82.1	↓-0.5
11/1 10:30	81.8	↓-0.3	干潮
11/1 10:40	81.8	0
11/1 10:50	82.0	↑0.2
11/1 11:00	82.4	↑0.4
11/1 11:10	83.1	↑0.7
11/1 11:20	84.1	↑1.0
11/1 11:30	85.3	↑1.2
11/1 11:40	86.8	↑1.5
11/1 11:50	88.4	↑1.6
11/1 12:00	90.4	↑2.0
11/1 12:10	92.5	↑2.1
11/1 12:20	94.8	↑2.3
11/1 12:30	97.3	↑2.5
11/1 12:40	100.0	↑2.7
11/1 12:50	102.8	↑2.8
11/1 13:00	105.7	↑2.9
11/1 13:10	108.7	↑3.0
11/1 13:20	111.8	↑3.1
11/1 13:30	114.9	↑3.1
11/1 13:40	118.0	↑3.1
11/1 13:50	121.0	↑3.0
11/1 14:00	124.0	↑3.0
11/1 14:10	126.9	↑2.9
11/1 14:20	129.7	↑2.8
11/1 14:30	132.3	↑2.6
11/1 14:40	134.7	↑2.4
11/1 14:50	137.0	↑2.3
11/1 15:00	139.0	↑2.0
11/1 15:10	140.8	↑1.8
11/1 15:20	142.4	↑1.6
11/1 15:30	143.6	↑1.2
11/1 15:40	144.6	↑1.0
11/1 15:50	145.4	↑0.8
11/1 16:00	145.8	↑0.4	満潮
11/1 16:10	145.9	↑0.1	満潮
11/1 16:20	145.7	↓-0.2
11/1 16:30	145.3	↓-0.4
11/1 16:40	144.4	↓-0.9
11/1 16:50	143.3	↓-1.1
11/1 17:00	141.9	↓-1.4
11/1 17:10	140.1	↓-1.8
11/1 17:20	138.0	↓-2.1
11/1 17:30	135.6	↓-2.4
11/1 17:40	132.9	↓-2.7
11/1 17:50	129.9	↓-3.0
11/1 18:00	126.6	↓-3.3
11/1 18:10	122.9	↓-3.7
11/1 18:20	119.1	↓-3.8
11/1 18:30	115.0	↓-4.1
11/1 18:40	110.6	↓-4.4
11/1 18:50	106.1	↓-4.5
11/1 19:00	101.4	↓-4.7
11/1 19:10	96.5	↓-4.9
11/1 19:20	91.5	↓-5.0
11/1 19:30	86.4	↓-5.1	最大潮位差
11/1 19:40	81.3	↓-5.1	最大潮位差
11/1 19:50	76.2	↓-5.1	最大潮位差
11/1 20:00	71.1	↓-5.1	最大潮位差
11/1 20:10	66.1	↓-5.0
11/1 20:20	61.1	↓-5.0
11/1 20:30	56.3	↓-4.8
11/1 20:40	51.6	↓-4.7
11/1 20:50	47.1	↓-4.5
11/1 21:00	42.8	↓-4.3
11/1 21:10	38.7	↓-4.1
11/1 21:20	34.9	↓-3.8
11/1 21:30	31.4	↓-3.5
11/1 21:40	28.1	↓-3.3
11/1 21:50	25.2	↓-2.9
11/1 22:00	22.6	↓-2.6
11/1 22:10	20.3	↓-2.3
11/1 22:20	18.3	↓-2.0
11/1 22:30	16.7	↓-1.6
11/1 22:40	15.5	↓-1.2
11/1 22:50	14.6	↓-0.9
11/1 23:00	14.1	↓-0.5	干潮
11/1 23:10	13.9	↓-0.2	干潮
11/1 23:20	14.2	↑0.3
11/1 23:30	14.8	↑0.6
11/1 23:40	15.8	↑1.0
11/1 23:50	17.2	↑1.4