21 (金)	10:37	04:51	22:58	16:16
	94cm	60cm	118cm	61cm
長潮 出 04:21 入 19:00 出 - 入 12:42

那珂湊（茨城）2052年06月21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
6/21 00:00	104.1	↓-1.8
6/21 00:10	102.2	↓-1.9
6/21 00:20	100.3	↓-1.9
6/21 00:30	98.2	↓-2.1
6/21 00:40	96.1	↓-2.1
6/21 00:50	93.9	↓-2.2
6/21 01:00	91.7	↓-2.2
6/21 01:10	89.5	↓-2.2
6/21 01:20	87.3	↓-2.2
6/21 01:30	85.1	↓-2.2
6/21 01:40	82.9	↓-2.2
6/21 01:50	80.7	↓-2.2
6/21 02:00	78.7	↓-2.0
6/21 02:10	76.6	↓-2.1
6/21 02:20	74.7	↓-1.9
6/21 02:30	72.8	↓-1.9
6/21 02:40	71.1	↓-1.7
6/21 02:50	69.4	↓-1.7
6/21 03:00	67.9	↓-1.5
6/21 03:10	66.4	↓-1.5
6/21 03:20	65.1	↓-1.3
6/21 03:30	64.0	↓-1.1
6/21 03:40	62.9	↓-1.1
6/21 03:50	62.0	↓-0.9
6/21 04:00	61.2	↓-0.8
6/21 04:10	60.6	↓-0.6
6/21 04:20	60.1	↓-0.5
6/21 04:30	59.7	↓-0.4
6/21 04:40	59.5	↓-0.2
6/21 04:50	59.4	↓-0.1	干潮
6/21 05:00	59.5	↑0.1
6/21 05:10	59.7	↑0.2
6/21 05:20	60.0	↑0.3
6/21 05:30	60.5	↑0.5
6/21 05:40	61.1	↑0.6
6/21 05:50	61.8	↑0.7
6/21 06:00	62.6	↑0.8
6/21 06:10	63.6	↑1.0
6/21 06:20	64.6	↑1.0
6/21 06:30	65.8	↑1.2
6/21 06:40	67.0	↑1.2
6/21 06:50	68.3	↑1.3
6/21 07:00	69.7	↑1.4
6/21 07:10	71.1	↑1.4
6/21 07:20	72.6	↑1.5
6/21 07:30	74.2	↑1.6
6/21 07:40	75.7	↑1.5
6/21 07:50	77.3	↑1.6
6/21 08:00	78.8	↑1.5
6/21 08:10	80.4	↑1.6
6/21 08:20	81.9	↑1.5
6/21 08:30	83.4	↑1.5
6/21 08:40	84.8	↑1.4
6/21 08:50	86.2	↑1.4
6/21 09:00	87.4	↑1.2
6/21 09:10	88.6	↑1.2
6/21 09:20	89.7	↑1.1
6/21 09:30	90.7	↑1.0
6/21 09:40	91.6	↑0.9
6/21 09:50	92.3	↑0.7
6/21 10:00	92.9	↑0.6
6/21 10:10	93.4	↑0.5
6/21 10:20	93.7	↑0.3
6/21 10:30	93.8	↑0.1	満潮
6/21 10:40	93.9	↑0.1
6/21 10:50	93.7	↓-0.2
6/21 11:00	93.5	↓-0.2
6/21 11:10	93.0	↓-0.5
6/21 11:20	92.5	↓-0.5
6/21 11:30	91.8	↓-0.7
6/21 11:40	90.9	↓-0.9
6/21 11:50	90.0	↓-0.9
6/21 12:00	88.9	↓-1.1
6/21 12:10	87.8	↓-1.1
6/21 12:20	86.5	↓-1.3
6/21 12:30	85.2	↓-1.3
6/21 12:40	83.8	↓-1.4
6/21 12:50	82.3	↓-1.5
6/21 13:00	80.8	↓-1.5
6/21 13:10	79.3	↓-1.5
6/21 13:20	77.8	↓-1.5
6/21 13:30	76.3	↓-1.5
6/21 13:40	74.7	↓-1.6
6/21 13:50	73.3	↓-1.4
6/21 14:00	71.8	↓-1.5
6/21 14:10	70.4	↓-1.4
6/21 14:20	69.1	↓-1.3
6/21 14:30	67.8	↓-1.3
6/21 14:40	66.6	↓-1.2
6/21 14:50	65.5	↓-1.1
6/21 15:00	64.5	↓-1.0
6/21 15:10	63.6	↓-0.9
6/21 15:20	62.8	↓-0.8
6/21 15:30	62.1	↓-0.7
6/21 15:40	61.6	↓-0.5
6/21 15:50	61.2	↓-0.4
6/21 16:00	60.9	↓-0.3
6/21 16:10	60.8	↓-0.1	干潮
6/21 16:20	60.8	0
6/21 16:30	60.9	↑0.1
6/21 16:40	61.2	↑0.3
6/21 16:50	61.6	↑0.4
6/21 17:00	62.2	↑0.6
6/21 17:10	62.9	↑0.7
6/21 17:20	63.8	↑0.9
6/21 17:30	64.8	↑1.0
6/21 17:40	65.9	↑1.1
6/21 17:50	67.2	↑1.3
6/21 18:00	68.6	↑1.4
6/21 18:10	70.1	↑1.5
6/21 18:20	71.7	↑1.6
6/21 18:30	73.4	↑1.7
6/21 18:40	75.2	↑1.8
6/21 18:50	77.1	↑1.9
6/21 19:00	79.1	↑2.0
6/21 19:10	81.2	↑2.1
6/21 19:20	83.3	↑2.1
6/21 19:30	85.5	↑2.2
6/21 19:40	87.7	↑2.2
6/21 19:50	89.9	↑2.2
6/21 20:00	92.2	↑2.3	最大潮位差
6/21 20:10	94.4	↑2.2
6/21 20:20	96.6	↑2.2
6/21 20:30	98.8	↑2.2
6/21 20:40	100.9	↑2.1
6/21 20:50	102.9	↑2.0
6/21 21:00	104.9	↑2.0
6/21 21:10	106.7	↑1.8
6/21 21:20	108.5	↑1.8
6/21 21:30	110.1	↑1.6
6/21 21:40	111.6	↑1.5
6/21 21:50	113.0	↑1.4
6/21 22:00	114.1	↑1.1
6/21 22:10	115.1	↑1.0
6/21 22:20	116.0	↑0.9
6/21 22:30	116.6	↑0.6
6/21 22:40	117.1	↑0.5
6/21 22:50	117.3	↑0.2	満潮
6/21 23:00	117.3	0
6/21 23:10	117.2	↓-0.1
6/21 23:20	116.8	↓-0.4
6/21 23:30	116.3	↓-0.5
6/21 23:40	115.5	↓-0.8
6/21 23:50	114.5	↓-1.0