6 (日)	13:16	05:25	23:23	18:23
	121cm	53cm	117cm	98cm
長潮 出 05:37 入 17:16 出 14:04 入 00:01

日立（茨城）2030年10月6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
10/6 00:00	103.3	↓-1.8
10/6 00:10	101.5	↓-1.8
10/6 00:20	99.7	↓-1.8
10/6 00:30	97.8	↓-1.9
10/6 00:40	95.9	↓-1.9
10/6 00:50	93.9	↓-2.0
10/6 01:00	91.9	↓-2.0
10/6 01:10	89.8	↓-2.1
10/6 01:20	87.7	↓-2.1
10/6 01:30	85.6	↓-2.1
10/6 01:40	83.5	↓-2.1
10/6 01:50	81.4	↓-2.1
10/6 02:00	79.3	↓-2.1
10/6 02:10	77.2	↓-2.1
10/6 02:20	75.1	↓-2.1
10/6 02:30	73.1	↓-2.0
10/6 02:40	71.0	↓-2.1
10/6 02:50	69.1	↓-1.9
10/6 03:00	67.2	↓-1.9
10/6 03:10	65.4	↓-1.8
10/6 03:20	63.6	↓-1.8
10/6 03:30	62.0	↓-1.6
10/6 03:40	60.5	↓-1.5
10/6 03:50	59.0	↓-1.5
10/6 04:00	57.7	↓-1.3
10/6 04:10	56.6	↓-1.1
10/6 04:20	55.5	↓-1.1
10/6 04:30	54.6	↓-0.9
10/6 04:40	53.9	↓-0.7
10/6 04:50	53.3	↓-0.6
10/6 05:00	52.9	↓-0.4
10/6 05:10	52.6	↓-0.3
10/6 05:20	52.4	↓-0.2	干潮
10/6 05:30	52.4	0
10/6 05:40	52.6	↑0.2
10/6 05:50	52.9	↑0.3
10/6 06:00	53.3	↑0.4
10/6 06:10	53.9	↑0.6
10/6 06:20	54.7	↑0.8
10/6 06:30	55.6	↑0.9
10/6 06:40	56.6	↑1.0
10/6 06:50	57.8	↑1.2
10/6 07:00	59.0	↑1.2
10/6 07:10	60.5	↑1.5
10/6 07:20	62.0	↑1.5
10/6 07:30	63.6	↑1.6
10/6 07:40	65.4	↑1.8
10/6 07:50	67.3	↑1.9
10/6 08:00	69.2	↑1.9
10/6 08:10	71.3	↑2.1
10/6 08:20	73.4	↑2.1
10/6 08:30	75.6	↑2.2
10/6 08:40	77.9	↑2.3
10/6 08:50	80.2	↑2.3
10/6 09:00	82.5	↑2.3
10/6 09:10	84.8	↑2.3
10/6 09:20	87.2	↑2.4	最大潮位差
10/6 09:30	89.5	↑2.3
10/6 09:40	91.8	↑2.3
10/6 09:50	94.1	↑2.3
10/6 10:00	96.3	↑2.2
10/6 10:10	98.5	↑2.2
10/6 10:20	100.6	↑2.1
10/6 10:30	102.6	↑2.0
10/6 10:40	104.6	↑2.0
10/6 10:50	106.5	↑1.9
10/6 11:00	108.2	↑1.7
10/6 11:10	109.9	↑1.7
10/6 11:20	111.4	↑1.5
10/6 11:30	112.9	↑1.5
10/6 11:40	114.2	↑1.3
10/6 11:50	115.4	↑1.2
10/6 12:00	116.5	↑1.1
10/6 12:10	117.4	↑0.9
10/6 12:20	118.2	↑0.8
10/6 12:30	118.9	↑0.7
10/6 12:40	119.5	↑0.6
10/6 12:50	119.9	↑0.4
10/6 13:00	120.2	↑0.3
10/6 13:10	120.3	↑0.1	満潮
10/6 13:20	120.3	0
10/6 13:30	120.2	↓-0.1
10/6 13:40	119.9	↓-0.3
10/6 13:50	119.5	↓-0.4
10/6 14:00	119.0	↓-0.5
10/6 14:10	118.3	↓-0.7
10/6 14:20	117.6	↓-0.7
10/6 14:30	116.7	↓-0.9
10/6 14:40	115.8	↓-0.9
10/6 14:50	114.8	↓-1.0
10/6 15:00	113.7	↓-1.1
10/6 15:10	112.6	↓-1.1
10/6 15:20	111.5	↓-1.1
10/6 15:30	110.3	↓-1.2
10/6 15:40	109.1	↓-1.2
10/6 15:50	108.0	↓-1.1
10/6 16:00	106.8	↓-1.2
10/6 16:10	105.7	↓-1.1
10/6 16:20	104.7	↓-1.0
10/6 16:30	103.7	↓-1.0
10/6 16:40	102.7	↓-1.0
10/6 16:50	101.9	↓-0.8
10/6 17:00	101.1	↓-0.8
10/6 17:10	100.3	↓-0.8
10/6 17:20	99.7	↓-0.6
10/6 17:30	99.2	↓-0.5
10/6 17:40	98.7	↓-0.5
10/6 17:50	98.4	↓-0.3
10/6 18:00	98.1	↓-0.3
10/6 18:10	98.0	↓-0.1
10/6 18:20	97.9	↓-0.1	干潮
10/6 18:30	97.9	0
10/6 18:40	98.1	↑0.2
10/6 18:50	98.3	↑0.2
10/6 19:00	98.6	↑0.3
10/6 19:10	99.0	↑0.4
10/6 19:20	99.5	↑0.5
10/6 19:30	100.0	↑0.5
10/6 19:40	100.6	↑0.6
10/6 19:50	101.4	↑0.8
10/6 20:00	102.1	↑0.7
10/6 20:10	103.0	↑0.9
10/6 20:20	103.8	↑0.8
10/6 20:30	104.8	↑1.0
10/6 20:40	105.7	↑0.9
10/6 20:50	106.7	↑1.0
10/6 21:00	107.7	↑1.0
10/6 21:10	108.7	↑1.0
10/6 21:20	109.7	↑1.0
10/6 21:30	110.6	↑0.9
10/6 21:40	111.5	↑0.9
10/6 21:50	112.4	↑0.9
10/6 22:00	113.2	↑0.8
10/6 22:10	114.0	↑0.8
10/6 22:20	114.6	↑0.6
10/6 22:30	115.2	↑0.6
10/6 22:40	115.7	↑0.5
10/6 22:50	116.1	↑0.4
10/6 23:00	116.4	↑0.3
10/6 23:10	116.6	↑0.2
10/6 23:20	116.7	↑0.1	満潮
10/6 23:30	116.7	0
10/6 23:40	116.5	↓-0.2
10/6 23:50	116.3	↓-0.2