22 (日)	03:00	07:18	12:46	20:30
	114cm	92cm	132cm	9cm
中潮 出 06:46 入 16:28 出 03:40 入 14:00

日立（茨城）2030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	84.9	↑3.0
12/22 00:10	87.8	↑2.9
12/22 00:20	90.6	↑2.8
12/22 00:30	93.3	↑2.7
12/22 00:40	95.8	↑2.5
12/22 00:50	98.2	↑2.4
12/22 01:00	100.4	↑2.2
12/22 01:10	102.4	↑2.0
12/22 01:20	104.4	↑2.0
12/22 01:30	106.1	↑1.7
12/22 01:40	107.7	↑1.6
12/22 01:50	109.1	↑1.4
12/22 02:00	110.3	↑1.2
12/22 02:10	111.3	↑1.0
12/22 02:20	112.1	↑0.8
12/22 02:30	112.8	↑0.7
12/22 02:40	113.3	↑0.5
12/22 02:50	113.5	↑0.2	満潮
12/22 03:00	113.6	↑0.1	満潮
12/22 03:10	113.5	↓-0.1
12/22 03:20	113.2	↓-0.3
12/22 03:30	112.7	↓-0.5
12/22 03:40	112.1	↓-0.6
12/22 03:50	111.4	↓-0.7
12/22 04:00	110.5	↓-0.9
12/22 04:10	109.4	↓-1.1
12/22 04:20	108.3	↓-1.1
12/22 04:30	107.1	↓-1.2
12/22 04:40	105.8	↓-1.3
12/22 04:50	104.5	↓-1.3
12/22 05:00	103.1	↓-1.4
12/22 05:10	101.8	↓-1.3
12/22 05:20	100.5	↓-1.3
12/22 05:30	99.2	↓-1.3
12/22 05:40	98.0	↓-1.2
12/22 05:50	96.8	↓-1.2
12/22 06:00	95.8	↓-1.0
12/22 06:10	94.8	↓-1.0
12/22 06:20	94.0	↓-0.8
12/22 06:30	93.3	↓-0.7
12/22 06:40	92.7	↓-0.6
12/22 06:50	92.2	↓-0.5
12/22 07:00	91.9	↓-0.3
12/22 07:10	91.8	↓-0.1	干潮
12/22 07:20	91.7	↓-0.1
12/22 07:30	91.9	↑0.2
12/22 07:40	92.1	↑0.2
12/22 07:50	92.5	↑0.4
12/22 08:00	93.1	↑0.6
12/22 08:10	93.8	↑0.7
12/22 08:20	94.6	↑0.8
12/22 08:30	95.6	↑1.0
12/22 08:40	96.7	↑1.1
12/22 08:50	97.9	↑1.2
12/22 09:00	99.3	↑1.4
12/22 09:10	100.7	↑1.4
12/22 09:20	102.3	↑1.6
12/22 09:30	104.0	↑1.7
12/22 09:40	105.8	↑1.8
12/22 09:50	107.6	↑1.8
12/22 10:00	109.5	↑1.9
12/22 10:10	111.4	↑1.9
12/22 10:20	113.3	↑1.9
12/22 10:30	115.3	↑2.0
12/22 10:40	117.2	↑1.9
12/22 10:50	119.1	↑1.9
12/22 11:00	120.9	↑1.8
12/22 11:10	122.7	↑1.8
12/22 11:20	124.3	↑1.6
12/22 11:30	125.8	↑1.5
12/22 11:40	127.2	↑1.4
12/22 11:50	128.4	↑1.2
12/22 12:00	129.4	↑1.0
12/22 12:10	130.3	↑0.9
12/22 12:20	130.9	↑0.6
12/22 12:30	131.3	↑0.4
12/22 12:40	131.6	↑0.3	満潮
12/22 12:50	131.5	↓-0.1
12/22 13:00	131.3	↓-0.2
12/22 13:10	130.9	↓-0.4
12/22 13:20	130.2	↓-0.7
12/22 13:30	129.3	↓-0.9
12/22 13:40	128.1	↓-1.2
12/22 13:50	126.8	↓-1.3
12/22 14:00	125.2	↓-1.6
12/22 14:10	123.3	↓-1.9
12/22 14:20	121.3	↓-2.0
12/22 14:30	119.0	↓-2.3
12/22 14:40	116.6	↓-2.4
12/22 14:50	113.9	↓-2.7
12/22 15:00	111.0	↓-2.9
12/22 15:10	107.9	↓-3.1
12/22 15:20	104.6	↓-3.3
12/22 15:30	101.1	↓-3.5
12/22 15:40	97.5	↓-3.6
12/22 15:50	93.7	↓-3.8
12/22 16:00	89.7	↓-4.0
12/22 16:10	85.6	↓-4.1
12/22 16:20	81.5	↓-4.1
12/22 16:30	77.2	↓-4.3
12/22 16:40	72.9	↓-4.3
12/22 16:50	68.5	↓-4.4	最大潮位差
12/22 17:00	64.2	↓-4.3
12/22 17:10	59.9	↓-4.3
12/22 17:20	55.6	↓-4.3
12/22 17:30	51.3	↓-4.3
12/22 17:40	47.2	↓-4.1
12/22 17:50	43.2	↓-4.0
12/22 18:00	39.3	↓-3.9
12/22 18:10	35.7	↓-3.6
12/22 18:20	32.1	↓-3.6
12/22 18:30	28.8	↓-3.3
12/22 18:40	25.7	↓-3.1
12/22 18:50	22.9	↓-2.8
12/22 19:00	20.3	↓-2.6
12/22 19:10	17.9	↓-2.4
12/22 19:20	15.8	↓-2.1
12/22 19:30	14.0	↓-1.8
12/22 19:40	12.4	↓-1.6
12/22 19:50	11.1	↓-1.3
12/22 20:00	10.2	↓-0.9
12/22 20:10	9.5	↓-0.7
12/22 20:20	9.1	↓-0.4	干潮
12/22 20:30	8.9	↓-0.2	干潮
12/22 20:40	9.1	↑0.2
12/22 20:50	9.6	↑0.5
12/22 21:00	10.4	↑0.8
12/22 21:10	11.5	↑1.1
12/22 21:20	12.9	↑1.4
12/22 21:30	14.6	↑1.7
12/22 21:40	16.5	↑1.9
12/22 21:50	18.7	↑2.2
12/22 22:00	21.2	↑2.5
12/22 22:10	24.0	↑2.8
12/22 22:20	27.0	↑3.0
12/22 22:30	30.2	↑3.2
12/22 22:40	33.6	↑3.4
12/22 22:50	37.2	↑3.6
12/22 23:00	40.9	↑3.7
12/22 23:10	44.8	↑3.9
12/22 23:20	48.8	↑4.0
12/22 23:30	52.8	↑4.0
12/22 23:40	56.9	↑4.1
12/22 23:50	61.0	↑4.1