7 (火)	08:51	01:32	18:52	13:12
	112cm	36cm	121cm	94cm
中潮 出 05:38 入 17:15 出 21:53 入 11:33

那珂湊（茨城）2031年10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
10/7 00:00	44.6	↓-2.1
10/7 00:10	42.6	↓-2.0
10/7 00:20	40.9	↓-1.7
10/7 00:30	39.4	↓-1.5
10/7 00:40	38.1	↓-1.3
10/7 00:50	37.0	↓-1.1
10/7 01:00	36.2	↓-0.8
10/7 01:10	35.6	↓-0.6
10/7 01:20	35.3	↓-0.3
10/7 01:30	35.1	↓-0.2	干潮
10/7 01:40	35.2	↑0.1
10/7 01:50	35.6	↑0.4
10/7 02:00	36.1	↑0.5
10/7 02:10	36.8	↑0.7
10/7 02:20	37.8	↑1.0
10/7 02:30	38.9	↑1.1
10/7 02:40	40.2	↑1.3
10/7 02:50	41.7	↑1.5
10/7 03:00	43.3	↑1.6
10/7 03:10	45.2	↑1.9
10/7 03:20	47.1	↑1.9
10/7 03:30	49.2	↑2.1
10/7 03:40	51.4	↑2.2
10/7 03:50	53.7	↑2.3
10/7 04:00	56.1	↑2.4
10/7 04:10	58.6	↑2.5
10/7 04:20	61.2	↑2.6
10/7 04:30	63.8	↑2.6
10/7 04:40	66.5	↑2.7
10/7 04:50	69.2	↑2.7
10/7 05:00	71.9	↑2.7
10/7 05:10	74.6	↑2.7
10/7 05:20	77.4	↑2.8
10/7 05:30	80.1	↑2.7
10/7 05:40	82.7	↑2.6
10/7 05:50	85.4	↑2.7
10/7 06:00	87.9	↑2.5
10/7 06:10	90.4	↑2.5
10/7 06:20	92.8	↑2.4
10/7 06:30	95.1	↑2.3
10/7 06:40	97.3	↑2.2
10/7 06:50	99.4	↑2.1
10/7 07:00	101.3	↑1.9
10/7 07:10	103.1	↑1.8
10/7 07:20	104.7	↑1.6
10/7 07:30	106.2	↑1.5
10/7 07:40	107.5	↑1.3
10/7 07:50	108.6	↑1.1
10/7 08:00	109.6	↑1.0
10/7 08:10	110.3	↑0.7
10/7 08:20	110.9	↑0.6
10/7 08:30	111.4	↑0.5
10/7 08:40	111.6	↑0.2
10/7 08:50	111.7	↑0.1	満潮
10/7 09:00	111.6	↓-0.1
10/7 09:10	111.4	↓-0.2
10/7 09:20	111.0	↓-0.4
10/7 09:30	110.5	↓-0.5
10/7 09:40	109.9	↓-0.6
10/7 09:50	109.2	↓-0.7
10/7 10:00	108.3	↓-0.9
10/7 10:10	107.4	↓-0.9
10/7 10:20	106.5	↓-0.9
10/7 10:30	105.4	↓-1.1
10/7 10:40	104.4	↓-1.0
10/7 10:50	103.3	↓-1.1
10/7 11:00	102.3	↓-1.0
10/7 11:10	101.2	↓-1.1
10/7 11:20	100.2	↓-1.0
10/7 11:30	99.2	↓-1.0
10/7 11:40	98.3	↓-0.9
10/7 11:50	97.4	↓-0.9
10/7 12:00	96.6	↓-0.8
10/7 12:10	95.9	↓-0.7
10/7 12:20	95.3	↓-0.6
10/7 12:30	94.8	↓-0.5
10/7 12:40	94.4	↓-0.4
10/7 12:50	94.1	↓-0.3
10/7 13:00	93.9	↓-0.2
10/7 13:10	93.9	0	干潮
10/7 13:20	93.9	0
10/7 13:30	94.1	↑0.2
10/7 13:40	94.3	↑0.2
10/7 13:50	94.7	↑0.4
10/7 14:00	95.2	↑0.5
10/7 14:10	95.8	↑0.6
10/7 14:20	96.4	↑0.6
10/7 14:30	97.2	↑0.8
10/7 14:40	98.0	↑0.8
10/7 14:50	98.9	↑0.9
10/7 15:00	99.9	↑1.0
10/7 15:10	100.9	↑1.0
10/7 15:20	102.0	↑1.1
10/7 15:30	103.1	↑1.1
10/7 15:40	104.2	↑1.1
10/7 15:50	105.4	↑1.2
10/7 16:00	106.6	↑1.2
10/7 16:10	107.8	↑1.2
10/7 16:20	109.0	↑1.2
10/7 16:30	110.1	↑1.1
10/7 16:40	111.3	↑1.2
10/7 16:50	112.4	↑1.1
10/7 17:00	113.5	↑1.1
10/7 17:10	114.6	↑1.1
10/7 17:20	115.6	↑1.0
10/7 17:30	116.5	↑0.9
10/7 17:40	117.4	↑0.9
10/7 17:50	118.1	↑0.7
10/7 18:00	118.8	↑0.7
10/7 18:10	119.4	↑0.6
10/7 18:20	119.9	↑0.5
10/7 18:30	120.2	↑0.3
10/7 18:40	120.4	↑0.2
10/7 18:50	120.5	↑0.1	満潮
10/7 19:00	120.5	0
10/7 19:10	120.2	↓-0.3
10/7 19:20	119.9	↓-0.3
10/7 19:30	119.3	↓-0.6
10/7 19:40	118.6	↓-0.7
10/7 19:50	117.8	↓-0.8
10/7 20:00	116.7	↓-1.1
10/7 20:10	115.5	↓-1.2
10/7 20:20	114.1	↓-1.4
10/7 20:30	112.6	↓-1.5
10/7 20:40	110.8	↓-1.8
10/7 20:50	108.9	↓-1.9
10/7 21:00	106.9	↓-2.0
10/7 21:10	104.7	↓-2.2
10/7 21:20	102.4	↓-2.3
10/7 21:30	99.9	↓-2.5
10/7 21:40	97.3	↓-2.6
10/7 21:50	94.7	↓-2.6
10/7 22:00	91.9	↓-2.8
10/7 22:10	89.1	↓-2.8
10/7 22:20	86.2	↓-2.9
10/7 22:30	83.3	↓-2.9
10/7 22:40	80.3	↓-3.0	最大潮位差
10/7 22:50	77.4	↓-2.9
10/7 23:00	74.5	↓-2.9
10/7 23:10	71.6	↓-2.9
10/7 23:20	68.7	↓-2.9
10/7 23:30	66.0	↓-2.7
10/7 23:40	63.3	↓-2.7
10/7 23:50	60.7	↓-2.6