11 (水)	05:34	10:36	15:52	23:04
	128cm	87cm	136cm	8cm
大潮 出 06:39 入 16:24 出 17:34 入 07:23

日立（茨城）2030年12月11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
12/11 00:00	21.1	↑3.0
12/11 00:10	24.3	↑3.2
12/11 00:20	27.7	↑3.4
12/11 00:30	31.5	↑3.8
12/11 00:40	35.4	↑3.9
12/11 00:50	39.5	↑4.1
12/11 01:00	43.8	↑4.3
12/11 01:10	48.2	↑4.4
12/11 01:20	52.7	↑4.5
12/11 01:30	57.3	↑4.6
12/11 01:40	61.9	↑4.6
12/11 01:50	66.5	↑4.6
12/11 02:00	71.0	↑4.5
12/11 02:10	75.5	↑4.5
12/11 02:20	80.0	↑4.5
12/11 02:30	84.3	↑4.3
12/11 02:40	88.5	↑4.2
12/11 02:50	92.6	↑4.1
12/11 03:00	96.5	↑3.9
12/11 03:10	100.3	↑3.8
12/11 03:20	103.8	↑3.5
12/11 03:30	107.1	↑3.3
12/11 03:40	110.3	↑3.2
12/11 03:50	113.2	↑2.9
12/11 04:00	115.8	↑2.6
12/11 04:10	118.2	↑2.4
12/11 04:20	120.4	↑2.2
12/11 04:30	122.3	↑1.9
12/11 04:40	123.9	↑1.6
12/11 04:50	125.3	↑1.4
12/11 05:00	126.3	↑1.0
12/11 05:10	127.1	↑0.8
12/11 05:20	127.6	↑0.5
12/11 05:30	127.8	↑0.2	満潮
12/11 05:40	127.8	0
12/11 05:50	127.5	↓-0.3
12/11 06:00	126.9	↓-0.6
12/11 06:10	126.0	↓-0.9
12/11 06:20	125.0	↓-1.0
12/11 06:30	123.7	↓-1.3
12/11 06:40	122.2	↓-1.5
12/11 06:50	120.5	↓-1.7
12/11 07:00	118.7	↓-1.8
12/11 07:10	116.8	↓-1.9
12/11 07:20	114.8	↓-2.0
12/11 07:30	112.7	↓-2.1
12/11 07:40	110.5	↓-2.2
12/11 07:50	108.4	↓-2.1
12/11 08:00	106.2	↓-2.2
12/11 08:10	104.1	↓-2.1
12/11 08:20	102.0	↓-2.1
12/11 08:30	100.0	↓-2.0
12/11 08:40	98.1	↓-1.9
12/11 08:50	96.3	↓-1.8
12/11 09:00	94.6	↓-1.7
12/11 09:10	93.0	↓-1.6
12/11 09:20	91.6	↓-1.4
12/11 09:30	90.3	↓-1.3
12/11 09:40	89.2	↓-1.1
12/11 09:50	88.3	↓-0.9
12/11 10:00	87.5	↓-0.8
12/11 10:10	87.0	↓-0.5
12/11 10:20	86.6	↓-0.4
12/11 10:30	86.4	↓-0.2	干潮
12/11 10:40	86.4	0
12/11 10:50	86.6	↑0.2
12/11 11:00	87.0	↑0.4
12/11 11:10	87.7	↑0.7
12/11 11:20	88.5	↑0.8
12/11 11:30	89.5	↑1.0
12/11 11:40	90.8	↑1.3
12/11 11:50	92.2	↑1.4
12/11 12:00	93.8	↑1.6
12/11 12:10	95.6	↑1.8
12/11 12:20	97.6	↑2.0
12/11 12:30	99.7	↑2.1
12/11 12:40	101.9	↑2.2
12/11 12:50	104.2	↑2.3
12/11 13:00	106.6	↑2.4
12/11 13:10	109.1	↑2.5
12/11 13:20	111.6	↑2.5
12/11 13:30	114.1	↑2.5
12/11 13:40	116.5	↑2.4
12/11 13:50	118.9	↑2.4
12/11 14:00	121.3	↑2.4
12/11 14:10	123.5	↑2.2
12/11 14:20	125.6	↑2.1
12/11 14:30	127.5	↑1.9
12/11 14:40	129.3	↑1.8
12/11 14:50	130.8	↑1.5
12/11 15:00	132.2	↑1.4
12/11 15:10	133.4	↑1.2
12/11 15:20	134.3	↑0.9
12/11 15:30	134.9	↑0.6
12/11 15:40	135.4	↑0.5
12/11 15:50	135.5	↑0.1	満潮
12/11 16:00	135.4	↓-0.1
12/11 16:10	135.0	↓-0.4
12/11 16:20	134.4	↓-0.6
12/11 16:30	133.5	↓-0.9
12/11 16:40	132.2	↓-1.3
12/11 16:50	130.7	↓-1.5
12/11 17:00	128.9	↓-1.8
12/11 17:10	126.9	↓-2.0
12/11 17:20	124.5	↓-2.4
12/11 17:30	121.9	↓-2.6
12/11 17:40	119.0	↓-2.9
12/11 17:50	115.8	↓-3.2
12/11 18:00	112.3	↓-3.5
12/11 18:10	108.7	↓-3.6
12/11 18:20	104.8	↓-3.9
12/11 18:30	100.6	↓-4.2
12/11 18:40	96.3	↓-4.3
12/11 18:50	91.9	↓-4.4
12/11 19:00	87.2	↓-4.7
12/11 19:10	82.5	↓-4.7
12/11 19:20	77.7	↓-4.8
12/11 19:30	72.9	↓-4.8
12/11 19:40	68.0	↓-4.9	最大潮位差
12/11 19:50	63.2	↓-4.8
12/11 20:00	58.4	↓-4.8
12/11 20:10	53.7	↓-4.7
12/11 20:20	49.1	↓-4.6
12/11 20:30	44.6	↓-4.5
12/11 20:40	40.3	↓-4.3
12/11 20:50	36.2	↓-4.1
12/11 21:00	32.3	↓-3.9
12/11 21:10	28.6	↓-3.7
12/11 21:20	25.2	↓-3.4
12/11 21:30	22.0	↓-3.2
12/11 21:40	19.1	↓-2.9
12/11 21:50	16.6	↓-2.5
12/11 22:00	14.3	↓-2.3
12/11 22:10	12.3	↓-2.0
12/11 22:20	10.7	↓-1.6
12/11 22:30	9.4	↓-1.3
12/11 22:40	8.4	↓-1.0
12/11 22:50	7.8	↓-0.6
12/11 23:00	7.5	↓-0.3	干潮
12/11 23:10	7.6	↑0.1
12/11 23:20	8.0	↑0.4
12/11 23:30	8.8	↑0.8
12/11 23:40	10.0	↑1.2
12/11 23:50	11.5	↑1.5