22 (土)	05:48	10:45	15:56	23:12
	128cm	89cm	136cm	2cm
中潮 出 06:46 入 16:28 出 17:44 入 07:31

日立（茨城）2029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	13.4	↑2.7
12/22 00:10	16.4	↑3.0
12/22 00:20	19.7	↑3.3
12/22 00:30	23.3	↑3.6
12/22 00:40	27.1	↑3.8
12/22 00:50	31.2	↑4.1
12/22 01:00	35.4	↑4.2
12/22 01:10	39.8	↑4.4
12/22 01:20	44.3	↑4.5
12/22 01:30	49.0	↑4.7
12/22 01:40	53.7	↑4.7
12/22 01:50	58.4	↑4.7
12/22 02:00	63.1	↑4.7
12/22 02:10	67.9	↑4.8
12/22 02:20	72.5	↑4.6
12/22 02:30	77.1	↑4.6
12/22 02:40	81.6	↑4.5
12/22 02:50	86.0	↑4.4
12/22 03:00	90.2	↑4.2
12/22 03:10	94.2	↑4.0
12/22 03:20	98.1	↑3.9
12/22 03:30	101.8	↑3.7
12/22 03:40	105.3	↑3.5
12/22 03:50	108.6	↑3.3
12/22 04:00	111.6	↑3.0
12/22 04:10	114.4	↑2.8
12/22 04:20	116.9	↑2.5
12/22 04:30	119.2	↑2.3
12/22 04:40	121.3	↑2.1
12/22 04:50	123.0	↑1.7
12/22 05:00	124.5	↑1.5
12/22 05:10	125.7	↑1.2
12/22 05:20	126.6	↑0.9
12/22 05:30	127.2	↑0.6
12/22 05:40	127.6	↑0.4	満潮
12/22 05:50	127.6	0
12/22 06:00	127.4	↓-0.2
12/22 06:10	127.0	↓-0.4
12/22 06:20	126.3	↓-0.7
12/22 06:30	125.3	↓-1.0
12/22 06:40	124.1	↓-1.2
12/22 06:50	122.7	↓-1.4
12/22 07:00	121.2	↓-1.5
12/22 07:10	119.5	↓-1.7
12/22 07:20	117.6	↓-1.9
12/22 07:30	115.7	↓-1.9
12/22 07:40	113.7	↓-2.0
12/22 07:50	111.6	↓-2.1
12/22 08:00	109.5	↓-2.1
12/22 08:10	107.4	↓-2.1
12/22 08:20	105.3	↓-2.1
12/22 08:30	103.3	↓-2.0
12/22 08:40	101.3	↓-2.0
12/22 08:50	99.5	↓-1.8
12/22 09:00	97.7	↓-1.8
12/22 09:10	96.0	↓-1.7
12/22 09:20	94.5	↓-1.5
12/22 09:30	93.1	↓-1.4
12/22 09:40	91.9	↓-1.2
12/22 09:50	90.8	↓-1.1
12/22 10:00	89.9	↓-0.9
12/22 10:10	89.2	↓-0.7
12/22 10:20	88.6	↓-0.6
12/22 10:30	88.3	↓-0.3
12/22 10:40	88.1	↓-0.2	干潮
12/22 10:50	88.1	0
12/22 11:00	88.4	↑0.3
12/22 11:10	88.8	↑0.4
12/22 11:20	89.4	↑0.6
12/22 11:30	90.3	↑0.9
12/22 11:40	91.3	↑1.0
12/22 11:50	92.5	↑1.2
12/22 12:00	93.9	↑1.4
12/22 12:10	95.5	↑1.6
12/22 12:20	97.3	↑1.8
12/22 12:30	99.2	↑1.9
12/22 12:40	101.3	↑2.1
12/22 12:50	103.5	↑2.2
12/22 13:00	105.7	↑2.2
12/22 13:10	108.1	↑2.4
12/22 13:20	110.5	↑2.4
12/22 13:30	112.9	↑2.4
12/22 13:40	115.4	↑2.5
12/22 13:50	117.8	↑2.4
12/22 14:00	120.1	↑2.3
12/22 14:10	122.3	↑2.2
12/22 14:20	124.5	↑2.2
12/22 14:30	126.5	↑2.0
12/22 14:40	128.3	↑1.8
12/22 14:50	130.0	↑1.7
12/22 15:00	131.4	↑1.4
12/22 15:10	132.7	↑1.3
12/22 15:20	133.7	↑1.0
12/22 15:30	134.4	↑0.7
12/22 15:40	135.0	↑0.6
12/22 15:50	135.2	↑0.2	満潮
12/22 16:00	135.2	0
12/22 16:10	134.9	↓-0.3
12/22 16:20	134.3	↓-0.6
12/22 16:30	133.5	↓-0.8
12/22 16:40	132.4	↓-1.1
12/22 16:50	130.9	↓-1.5
12/22 17:00	129.2	↓-1.7
12/22 17:10	127.2	↓-2.0
12/22 17:20	124.9	↓-2.3
12/22 17:30	122.3	↓-2.6
12/22 17:40	119.5	↓-2.8
12/22 17:50	116.3	↓-3.2
12/22 18:00	112.9	↓-3.4
12/22 18:10	109.3	↓-3.6
12/22 18:20	105.4	↓-3.9
12/22 18:30	101.3	↓-4.1
12/22 18:40	96.9	↓-4.4
12/22 18:50	92.4	↓-4.5
12/22 19:00	87.8	↓-4.6
12/22 19:10	83.0	↓-4.8
12/22 19:20	78.1	↓-4.9
12/22 19:30	73.1	↓-5.0
12/22 19:40	68.1	↓-5.0
12/22 19:50	63.0	↓-5.1	最大潮位差
12/22 20:00	58.0	↓-5.0
12/22 20:10	53.1	↓-4.9
12/22 20:20	48.2	↓-4.9
12/22 20:30	43.5	↓-4.7
12/22 20:40	38.8	↓-4.7
12/22 20:50	34.4	↓-4.4
12/22 21:00	30.2	↓-4.2
12/22 21:10	26.2	↓-4.0
12/22 21:20	22.4	↓-3.8
12/22 21:30	18.9	↓-3.5
12/22 21:40	15.7	↓-3.2
12/22 21:50	12.7	↓-3.0
12/22 22:00	10.1	↓-2.6
12/22 22:10	7.8	↓-2.3
12/22 22:20	5.8	↓-2.0
12/22 22:30	4.1	↓-1.7
12/22 22:40	2.8	↓-1.3
12/22 22:50	1.9	↓-0.9
12/22 23:00	1.3	↓-0.6
12/22 23:10	1.0	↓-0.3	干潮
12/22 23:20	1.2	↑0.2
12/22 23:30	1.7	↑0.5
12/22 23:40	2.5	↑0.8
12/22 23:50	3.8	↑1.3