09 (木)	11:42	03:26	20:16	15:29
	111cm	60cm	115cm	107cm
小潮 出 05:39 入 17:12 出 23:40 入 12:56

日立（茨城）2031年10月09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
10/9 00:00	83.3	↓-2.0	最大潮位差
10/9 00:10	81.4	↓-1.9
10/9 00:20	79.5	↓-1.9
10/9 00:30	77.6	↓-1.9
10/9 00:40	75.8	↓-1.8
10/9 00:50	74.1	↓-1.7
10/9 01:00	72.4	↓-1.7
10/9 01:10	70.8	↓-1.6
10/9 01:20	69.3	↓-1.5
10/9 01:30	67.8	↓-1.5
10/9 01:40	66.5	↓-1.3
10/9 01:50	65.2	↓-1.3
10/9 02:00	64.1	↓-1.1
10/9 02:10	63.0	↓-1.1
10/9 02:20	62.1	↓-0.9
10/9 02:30	61.3	↓-0.8
10/9 02:40	60.6	↓-0.7
10/9 02:50	60.0	↓-0.6
10/9 03:00	59.6	↓-0.4
10/9 03:10	59.3	↓-0.3
10/9 03:20	59.1	↓-0.2	干潮
10/9 03:30	59.1	0
10/9 03:40	59.3	↑0.2
10/9 03:50	59.6	↑0.3
10/9 04:00	60.0	↑0.4
10/9 04:10	60.5	↑0.5
10/9 04:20	61.2	↑0.7
10/9 04:30	62.1	↑0.9
10/9 04:40	63.0	↑0.9
10/9 04:50	64.0	↑1.0
10/9 05:00	65.2	↑1.2
10/9 05:10	66.4	↑1.2
10/9 05:20	67.8	↑1.4
10/9 05:30	69.2	↑1.4
10/9 05:40	70.6	↑1.4
10/9 05:50	72.2	↑1.6
10/9 06:00	73.8	↑1.6
10/9 06:10	75.4	↑1.6
10/9 06:20	77.0	↑1.6
10/9 06:30	78.7	↑1.7
10/9 06:40	80.4	↑1.7
10/9 06:50	82.1	↑1.7
10/9 07:00	83.9	↑1.8
10/9 07:10	85.6	↑1.7
10/9 07:20	87.3	↑1.7
10/9 07:30	88.9	↑1.6
10/9 07:40	90.6	↑1.7
10/9 07:50	92.2	↑1.6
10/9 08:00	93.8	↑1.6
10/9 08:10	95.3	↑1.5
10/9 08:20	96.8	↑1.5
10/9 08:30	98.2	↑1.4
10/9 08:40	99.6	↑1.4
10/9 08:50	100.9	↑1.3
10/9 09:00	102.1	↑1.2
10/9 09:10	103.2	↑1.1
10/9 09:20	104.3	↑1.1
10/9 09:30	105.2	↑0.9
10/9 09:40	106.1	↑0.9
10/9 09:50	106.9	↑0.8
10/9 10:00	107.6	↑0.7
10/9 10:10	108.2	↑0.6
10/9 10:20	108.7	↑0.5
10/9 10:30	109.2	↑0.5
10/9 10:40	109.6	↑0.4
10/9 10:50	109.9	↑0.3
10/9 11:00	110.1	↑0.2
10/9 11:10	110.3	↑0.2
10/9 11:20	110.5	↑0.2
10/9 11:30	110.5	0
10/9 11:40	110.6	↑0.1	満潮
10/9 11:50	110.5	↓-0.1
10/9 12:00	110.5	0
10/9 12:10	110.4	↓-0.1
10/9 12:20	110.3	↓-0.1
10/9 12:30	110.1	↓-0.2
10/9 12:40	109.9	↓-0.2
10/9 12:50	109.7	↓-0.2
10/9 13:00	109.5	↓-0.2
10/9 13:10	109.3	↓-0.2
10/9 13:20	109.0	↓-0.3
10/9 13:30	108.7	↓-0.3
10/9 13:40	108.5	↓-0.2
10/9 13:50	108.2	↓-0.3
10/9 14:00	107.9	↓-0.3
10/9 14:10	107.7	↓-0.2
10/9 14:20	107.4	↓-0.3
10/9 14:30	107.2	↓-0.2
10/9 14:40	107.0	↓-0.2
10/9 14:50	106.8	↓-0.2
10/9 15:00	106.7	↓-0.1
10/9 15:10	106.6	↓-0.1
10/9 15:20	106.5	↓-0.1	干潮
10/9 15:30	106.5	0
10/9 15:40	106.5	0
10/9 15:50	106.6	↑0.1
10/9 16:00	106.7	↑0.1
10/9 16:10	106.9	↑0.2
10/9 16:20	107.1	↑0.2
10/9 16:30	107.4	↑0.3
10/9 16:40	107.7	↑0.3
10/9 16:50	108.0	↑0.3
10/9 17:00	108.4	↑0.4
10/9 17:10	108.7	↑0.3
10/9 17:20	109.1	↑0.4
10/9 17:30	109.5	↑0.4
10/9 17:40	110.0	↑0.5
10/9 17:50	110.4	↑0.4
10/9 18:00	110.8	↑0.4
10/9 18:10	111.2	↑0.4
10/9 18:20	111.6	↑0.4
10/9 18:30	112.0	↑0.4
10/9 18:40	112.3	↑0.3
10/9 18:50	112.7	↑0.4
10/9 19:00	113.0	↑0.3
10/9 19:10	113.2	↑0.2
10/9 19:20	113.5	↑0.3
10/9 19:30	113.7	↑0.2
10/9 19:40	113.9	↑0.2
10/9 19:50	114.0	↑0.1
10/9 20:00	114.1	↑0.1
10/9 20:10	114.2	↑0.1	満潮
10/9 20:20	114.2	0
10/9 20:30	114.1	↓-0.1
10/9 20:40	114.0	↓-0.1
10/9 20:50	113.8	↓-0.2
10/9 21:00	113.6	↓-0.2
10/9 21:10	113.3	↓-0.3
10/9 21:20	112.9	↓-0.4
10/9 21:30	112.5	↓-0.4
10/9 21:40	112.0	↓-0.5
10/9 21:50	111.4	↓-0.6
10/9 22:00	110.7	↓-0.7
10/9 22:10	110.0	↓-0.7
10/9 22:20	109.2	↓-0.8
10/9 22:30	108.3	↓-0.9
10/9 22:40	107.3	↓-1.0
10/9 22:50	106.3	↓-1.0
10/9 23:00	105.3	↓-1.0
10/9 23:10	104.1	↓-1.2
10/9 23:20	103.0	↓-1.1
10/9 23:30	101.7	↓-1.3
10/9 23:40	100.5	↓-1.2
10/9 23:50	99.2	↓-1.3