7 (土)	03:12	07:53	13:28	20:48
	115cm	90cm	131cm	19cm
中潮 出 06:36 入 16:24 出 14:30 入 03:56

日立（茨城）2030年12月7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
12/7 00:00	81.6	↑3.1
12/7 00:10	84.7	↑3.1
12/7 00:20	87.6	↑2.9
12/7 00:30	90.5	↑2.9
12/7 00:40	93.2	↑2.7
12/7 00:50	95.8	↑2.6
12/7 01:00	98.3	↑2.5
12/7 01:10	100.6	↑2.3
12/7 01:20	102.8	↑2.2
12/7 01:30	104.8	↑2.0
12/7 01:40	106.6	↑1.8
12/7 01:50	108.3	↑1.7
12/7 02:00	109.8	↑1.5
12/7 02:10	111.1	↑1.3
12/7 02:20	112.2	↑1.1
12/7 02:30	113.2	↑1.0
12/7 02:40	113.9	↑0.7
12/7 02:50	114.4	↑0.5
12/7 03:00	114.7	↑0.3
12/7 03:10	114.8	↑0.1	満潮
12/7 03:20	114.7	↓-0.1
12/7 03:30	114.4	↓-0.3
12/7 03:40	114.0	↓-0.4
12/7 03:50	113.4	↓-0.6
12/7 04:00	112.6	↓-0.8
12/7 04:10	111.7	↓-0.9
12/7 04:20	110.6	↓-1.1
12/7 04:30	109.5	↓-1.1
12/7 04:40	108.2	↓-1.3
12/7 04:50	106.9	↓-1.3
12/7 05:00	105.5	↓-1.4
12/7 05:10	104.2	↓-1.3
12/7 05:20	102.8	↓-1.4
12/7 05:30	101.4	↓-1.4
12/7 05:40	100.0	↓-1.4
12/7 05:50	98.7	↓-1.3
12/7 06:00	97.4	↓-1.3
12/7 06:10	96.2	↓-1.2
12/7 06:20	95.1	↓-1.1
12/7 06:30	94.0	↓-1.1
12/7 06:40	93.1	↓-0.9
12/7 06:50	92.3	↓-0.8
12/7 07:00	91.5	↓-0.8
12/7 07:10	90.9	↓-0.6
12/7 07:20	90.4	↓-0.5
12/7 07:30	90.1	↓-0.3
12/7 07:40	89.8	↓-0.3
12/7 07:50	89.7	↓-0.1	干潮
12/7 08:00	89.8	↑0.1
12/7 08:10	90.0	↑0.2
12/7 08:20	90.3	↑0.3
12/7 08:30	90.7	↑0.4
12/7 08:40	91.4	↑0.7
12/7 08:50	92.1	↑0.7
12/7 09:00	93.0	↑0.9
12/7 09:10	94.1	↑1.1
12/7 09:20	95.3	↑1.2
12/7 09:30	96.6	↑1.3
12/7 09:40	98.1	↑1.5
12/7 09:50	99.7	↑1.6
12/7 10:00	101.4	↑1.7
12/7 10:10	103.1	↑1.7
12/7 10:20	105.0	↑1.9
12/7 10:30	106.9	↑1.9
12/7 10:40	108.8	↑1.9
12/7 10:50	110.8	↑2.0
12/7 11:00	112.7	↑1.9
12/7 11:10	114.7	↑2.0
12/7 11:20	116.6	↑1.9
12/7 11:30	118.4	↑1.8
12/7 11:40	120.1	↑1.7
12/7 11:50	121.8	↑1.7
12/7 12:00	123.4	↑1.6
12/7 12:10	124.8	↑1.4
12/7 12:20	126.1	↑1.3
12/7 12:30	127.2	↑1.1
12/7 12:40	128.2	↑1.0
12/7 12:50	129.0	↑0.8
12/7 13:00	129.7	↑0.7
12/7 13:10	130.1	↑0.4
12/7 13:20	130.4	↑0.3	満潮
12/7 13:30	130.4	0
12/7 13:40	130.2	↓-0.2
12/7 13:50	129.9	↓-0.3
12/7 14:00	129.3	↓-0.6
12/7 14:10	128.5	↓-0.8
12/7 14:20	127.4	↓-1.1
12/7 14:30	126.1	↓-1.3
12/7 14:40	124.6	↓-1.5
12/7 14:50	122.8	↓-1.8
12/7 15:00	120.8	↓-2.0
12/7 15:10	118.6	↓-2.2
12/7 15:20	116.1	↓-2.5
12/7 15:30	113.4	↓-2.7
12/7 15:40	110.4	↓-3.0
12/7 15:50	107.3	↓-3.1
12/7 16:00	104.0	↓-3.3
12/7 16:10	100.4	↓-3.6
12/7 16:20	96.7	↓-3.7
12/7 16:30	92.9	↓-3.8
12/7 16:40	89.0	↓-3.9
12/7 16:50	84.9	↓-4.1
12/7 17:00	80.8	↓-4.1
12/7 17:10	76.6	↓-4.2	最大潮位差
12/7 17:20	72.5	↓-4.1
12/7 17:30	68.3	↓-4.2	最大潮位差
12/7 17:40	64.2	↓-4.1
12/7 17:50	60.1	↓-4.1
12/7 18:00	56.2	↓-3.9
12/7 18:10	52.3	↓-3.9
12/7 18:20	48.6	↓-3.7
12/7 18:30	45.0	↓-3.6
12/7 18:40	41.6	↓-3.4
12/7 18:50	38.4	↓-3.2
12/7 19:00	35.4	↓-3.0
12/7 19:10	32.6	↓-2.8
12/7 19:20	30.0	↓-2.6
12/7 19:30	27.7	↓-2.3
12/7 19:40	25.6	↓-2.1
12/7 19:50	23.8	↓-1.8
12/7 20:00	22.3	↓-1.5
12/7 20:10	21.1	↓-1.2
12/7 20:20	20.1	↓-1.0
12/7 20:30	19.4	↓-0.7
12/7 20:40	19.1	↓-0.3	干潮
12/7 20:50	19.0	↓-0.1
12/7 21:00	19.2	↑0.2
12/7 21:10	19.8	↑0.6
12/7 21:20	20.7	↑0.9
12/7 21:30	21.8	↑1.1
12/7 21:40	23.3	↑1.5
12/7 21:50	25.0	↑1.7
12/7 22:00	27.1	↑2.1
12/7 22:10	29.4	↑2.3
12/7 22:20	31.9	↑2.5
12/7 22:30	34.7	↑2.8
12/7 22:40	37.7	↑3.0
12/7 22:50	40.9	↑3.2
12/7 23:00	44.2	↑3.3
12/7 23:10	47.7	↑3.5
12/7 23:20	51.3	↑3.6
12/7 23:30	55.0	↑3.7
12/7 23:40	58.8	↑3.8
12/7 23:50	62.5	↑3.7