14 (火)	02:38	08:39	14:47	21:03
	133cm	60cm	136cm	52cm
中潮 出 05:44 入 17:05 出 03:25 入 15:38

日立（茨城）2031年10月14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
10/14 00:00	105.8	↑2.9
10/14 00:10	108.6	↑2.8
10/14 00:20	111.3	↑2.7
10/14 00:30	114.0	↑2.7
10/14 00:40	116.5	↑2.5
10/14 00:50	118.8	↑2.3
10/14 01:00	121.0	↑2.2
10/14 01:10	123.1	↑2.1
10/14 01:20	124.9	↑1.8
10/14 01:30	126.6	↑1.7
10/14 01:40	128.0	↑1.4
10/14 01:50	129.3	↑1.3
10/14 02:00	130.3	↑1.0
10/14 02:10	131.1	↑0.8
10/14 02:20	131.6	↑0.5
10/14 02:30	131.9	↑0.3	満潮
10/14 02:40	132.0	↑0.1
10/14 02:50	131.8	↓-0.2
10/14 03:00	131.3	↓-0.5
10/14 03:10	130.6	↓-0.7
10/14 03:20	129.6	↓-1.0
10/14 03:30	128.4	↓-1.2
10/14 03:40	126.9	↓-1.5
10/14 03:50	125.2	↓-1.7
10/14 04:00	123.2	↓-2.0
10/14 04:10	121.0	↓-2.2
10/14 04:20	118.6	↓-2.4
10/14 04:30	116.0	↓-2.6
10/14 04:40	113.2	↓-2.8
10/14 04:50	110.3	↓-2.9
10/14 05:00	107.3	↓-3.0
10/14 05:10	104.1	↓-3.2
10/14 05:20	100.9	↓-3.2
10/14 05:30	97.7	↓-3.2
10/14 05:40	94.5	↓-3.2
10/14 05:50	91.3	↓-3.2
10/14 06:00	88.1	↓-3.2
10/14 06:10	85.0	↓-3.1
10/14 06:20	82.0	↓-3.0
10/14 06:30	79.1	↓-2.9
10/14 06:40	76.4	↓-2.7
10/14 06:50	73.8	↓-2.6
10/14 07:00	71.4	↓-2.4
10/14 07:10	69.2	↓-2.2
10/14 07:20	67.1	↓-2.1
10/14 07:30	65.3	↓-1.8
10/14 07:40	63.8	↓-1.5
10/14 07:50	62.4	↓-1.4
10/14 08:00	61.3	↓-1.1
10/14 08:10	60.5	↓-0.8
10/14 08:20	59.9	↓-0.6
10/14 08:30	59.5	↓-0.4	干潮
10/14 08:40	59.5	0
10/14 08:50	59.6	↑0.1
10/14 09:00	60.1	↑0.5
10/14 09:10	60.8	↑0.7
10/14 09:20	61.8	↑1.0
10/14 09:30	63.1	↑1.3
10/14 09:40	64.6	↑1.5
10/14 09:50	66.3	↑1.7
10/14 10:00	68.3	↑2.0
10/14 10:10	70.6	↑2.3
10/14 10:20	73.0	↑2.4
10/14 10:30	75.6	↑2.6
10/14 10:40	78.4	↑2.8
10/14 10:50	81.4	↑3.0
10/14 11:00	84.5	↑3.1
10/14 11:10	87.7	↑3.2
10/14 11:20	90.9	↑3.2
10/14 11:30	94.3	↑3.4
10/14 11:40	97.6	↑3.3
10/14 11:50	100.9	↑3.3
10/14 12:00	104.2	↑3.3
10/14 12:10	107.4	↑3.2
10/14 12:20	110.5	↑3.1
10/14 12:30	113.6	↑3.1
10/14 12:40	116.5	↑2.9
10/14 12:50	119.2	↑2.7
10/14 13:00	121.8	↑2.6
10/14 13:10	124.2	↑2.4
10/14 13:20	126.4	↑2.2
10/14 13:30	128.4	↑2.0
10/14 13:40	130.1	↑1.7
10/14 13:50	131.7	↑1.6
10/14 14:00	133.0	↑1.3
10/14 14:10	134.0	↑1.0
10/14 14:20	134.8	↑0.8
10/14 14:30	135.4	↑0.6
10/14 14:40	135.7	↑0.3	満潮
10/14 14:50	135.7	0
10/14 15:00	135.4	↓-0.3
10/14 15:10	134.9	↓-0.5
10/14 15:20	134.1	↓-0.8
10/14 15:30	133.0	↓-1.1
10/14 15:40	131.7	↓-1.3
10/14 15:50	130.1	↓-1.6
10/14 16:00	128.2	↓-1.9
10/14 16:10	126.0	↓-2.2
10/14 16:20	123.7	↓-2.3
10/14 16:30	121.1	↓-2.6
10/14 16:40	118.3	↓-2.8
10/14 16:50	115.3	↓-3.0
10/14 17:00	112.1	↓-3.2
10/14 17:10	108.8	↓-3.3
10/14 17:20	105.4	↓-3.4
10/14 17:30	101.9	↓-3.5
10/14 17:40	98.4	↓-3.5
10/14 17:50	94.8	↓-3.6
10/14 18:00	91.2	↓-3.6
10/14 18:10	87.6	↓-3.6
10/14 18:20	84.1	↓-3.5
10/14 18:30	80.7	↓-3.4
10/14 18:40	77.4	↓-3.3
10/14 18:50	74.2	↓-3.2
10/14 19:00	71.2	↓-3.0
10/14 19:10	68.3	↓-2.9
10/14 19:20	65.7	↓-2.6
10/14 19:30	63.2	↓-2.5
10/14 19:40	60.9	↓-2.3
10/14 19:50	58.9	↓-2.0
10/14 20:00	57.1	↓-1.8
10/14 20:10	55.6	↓-1.5
10/14 20:20	54.3	↓-1.3
10/14 20:30	53.2	↓-1.1
10/14 20:40	52.5	↓-0.7
10/14 20:50	52.0	↓-0.5
10/14 21:00	51.8	↓-0.2	干潮
10/14 21:10	51.9	↑0.1
10/14 21:20	52.3	↑0.4
10/14 21:30	52.9	↑0.6
10/14 21:40	53.9	↑1.0
10/14 21:50	55.1	↑1.2
10/14 22:00	56.6	↑1.5
10/14 22:10	58.4	↑1.8
10/14 22:20	60.5	↑2.1
10/14 22:30	62.9	↑2.4
10/14 22:40	65.4	↑2.5
10/14 22:50	68.2	↑2.8
10/14 23:00	71.2	↑3.0
10/14 23:10	74.4	↑3.2
10/14 23:20	77.8	↑3.4
10/14 23:30	81.2	↑3.4
10/14 23:40	84.8	↑3.6
10/14 23:50	88.5	↑3.7	最大潮位差