22 (水)	00:54	05:57	12:10	19:31
	101cm	72cm	126cm	36cm
中潮 出 06:46 入 16:28 出 01:59 入 13:29

日立（茨城）2038年12月22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
12/22 00:00	98.9	↑0.8
12/22 00:10	99.5	↑0.6
12/22 00:20	100.1	↑0.6
12/22 00:30	100.5	↑0.4
12/22 00:40	100.7	↑0.2
12/22 00:50	100.8	↑0.1	満潮
12/22 01:00	100.8	0
12/22 01:10	100.6	↓-0.2
12/22 01:20	100.3	↓-0.3
12/22 01:30	99.9	↓-0.4
12/22 01:40	99.3	↓-0.6
12/22 01:50	98.7	↓-0.6
12/22 02:00	97.8	↓-0.9
12/22 02:10	96.9	↓-0.9
12/22 02:20	95.9	↓-1.0
12/22 02:30	94.7	↓-1.2
12/22 02:40	93.4	↓-1.3
12/22 02:50	92.1	↓-1.3
12/22 03:00	90.7	↓-1.4
12/22 03:10	89.3	↓-1.4
12/22 03:20	87.8	↓-1.5
12/22 03:30	86.2	↓-1.6
12/22 03:40	84.7	↓-1.5
12/22 03:50	83.2	↓-1.5
12/22 04:00	81.7	↓-1.5
12/22 04:10	80.2	↓-1.5
12/22 04:20	78.9	↓-1.3
12/22 04:30	77.6	↓-1.3
12/22 04:40	76.4	↓-1.2
12/22 04:50	75.3	↓-1.1
12/22 05:00	74.4	↓-0.9
12/22 05:10	73.5	↓-0.9
12/22 05:20	72.9	↓-0.6
12/22 05:30	72.4	↓-0.5
12/22 05:40	72.0	↓-0.4
12/22 05:50	71.8	↓-0.2	干潮
12/22 06:00	71.8	0
12/22 06:10	72.0	↑0.2
12/22 06:20	72.3	↑0.3
12/22 06:30	72.8	↑0.5
12/22 06:40	73.4	↑0.6
12/22 06:50	74.2	↑0.8
12/22 07:00	75.2	↑1.0
12/22 07:10	76.3	↑1.1
12/22 07:20	77.5	↑1.2
12/22 07:30	78.9	↑1.4
12/22 07:40	80.4	↑1.5
12/22 07:50	82.1	↑1.7
12/22 08:00	83.9	↑1.8
12/22 08:10	85.7	↑1.8
12/22 08:20	87.7	↑2.0
12/22 08:30	89.7	↑2.0
12/22 08:40	91.8	↑2.1
12/22 08:50	94.0	↑2.2
12/22 09:00	96.3	↑2.3
12/22 09:10	98.5	↑2.2
12/22 09:20	100.8	↑2.3
12/22 09:30	103.0	↑2.2
12/22 09:40	105.3	↑2.3
12/22 09:50	107.5	↑2.2
12/22 10:00	109.6	↑2.1
12/22 10:10	111.7	↑2.1
12/22 10:20	113.7	↑2.0
12/22 10:30	115.5	↑1.8
12/22 10:40	117.2	↑1.7
12/22 10:50	118.8	↑1.6
12/22 11:00	120.2	↑1.4
12/22 11:10	121.5	↑1.3
12/22 11:20	122.6	↑1.1
12/22 11:30	123.5	↑0.9
12/22 11:40	124.2	↑0.7
12/22 11:50	124.7	↑0.5
12/22 12:00	125.0	↑0.3	満潮
12/22 12:10	125.0	0	満潮
12/22 12:20	124.9	↓-0.1
12/22 12:30	124.6	↓-0.3
12/22 12:40	124.1	↓-0.5
12/22 12:50	123.4	↓-0.7
12/22 13:00	122.4	↓-1.0
12/22 13:10	121.3	↓-1.1
12/22 13:20	120.0	↓-1.3
12/22 13:30	118.5	↓-1.5
12/22 13:40	116.9	↓-1.6
12/22 13:50	115.0	↓-1.9
12/22 14:00	113.0	↓-2.0
12/22 14:10	110.7	↓-2.3
12/22 14:20	108.4	↓-2.3
12/22 14:30	105.9	↓-2.5
12/22 14:40	103.2	↓-2.7
12/22 14:50	100.4	↓-2.8
12/22 15:00	97.5	↓-2.9
12/22 15:10	94.4	↓-3.1
12/22 15:20	91.3	↓-3.1
12/22 15:30	88.1	↓-3.2
12/22 15:40	84.8	↓-3.3
12/22 15:50	81.5	↓-3.3
12/22 16:00	78.2	↓-3.3
12/22 16:10	74.8	↓-3.4	最大潮位差
12/22 16:20	71.5	↓-3.3
12/22 16:30	68.3	↓-3.2
12/22 16:40	65.1	↓-3.2
12/22 16:50	62.0	↓-3.1
12/22 17:00	59.0	↓-3.0
12/22 17:10	56.1	↓-2.9
12/22 17:20	53.4	↓-2.7
12/22 17:30	50.8	↓-2.6
12/22 17:40	48.4	↓-2.4
12/22 17:50	46.2	↓-2.2
12/22 18:00	44.1	↓-2.1
12/22 18:10	42.3	↓-1.8
12/22 18:20	40.6	↓-1.7
12/22 18:30	39.2	↓-1.4
12/22 18:40	38.0	↓-1.2
12/22 18:50	37.0	↓-1.0
12/22 19:00	36.2	↓-0.8
12/22 19:10	35.7	↓-0.5
12/22 19:20	35.3	↓-0.4
12/22 19:30	35.2	↓-0.1	干潮
12/22 19:40	35.4	↑0.2
12/22 19:50	35.7	↑0.3
12/22 20:00	36.3	↑0.6
12/22 20:10	37.1	↑0.8
12/22 20:20	38.1	↑1.0
12/22 20:30	39.3	↑1.2
12/22 20:40	40.8	↑1.5
12/22 20:50	42.4	↑1.6
12/22 21:00	44.2	↑1.8
12/22 21:10	46.3	↑2.1
12/22 21:20	48.5	↑2.2
12/22 21:30	50.8	↑2.3
12/22 21:40	53.3	↑2.5
12/22 21:50	55.9	↑2.6
12/22 22:00	58.7	↑2.8
12/22 22:10	61.5	↑2.8
12/22 22:20	64.3	↑2.8
12/22 22:30	67.3	↑3.0
12/22 22:40	70.2	↑2.9
12/22 22:50	73.2	↑3.0
12/22 23:00	76.1	↑2.9
12/22 23:10	79.0	↑2.9
12/22 23:20	81.9	↑2.9
12/22 23:30	84.6	↑2.7
12/22 23:40	87.3	↑2.7
12/22 23:50	89.9	↑2.6