9 (木)	01:40	07:27	12:54	19:36
	98cm	58cm	96cm	26cm
中潮 出 05:13 入 18:08 出 02:46 入 14:21

那珂湊（茨城）2048年04月9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
4/9 00:00	88.6	↑1.9
4/9 00:10	90.2	↑1.6
4/9 00:20	91.8	↑1.6
4/9 00:30	93.1	↑1.3
4/9 00:40	94.3	↑1.2
4/9 00:50	95.3	↑1.0
4/9 01:00	96.1	↑0.8
4/9 01:10	96.7	↑0.6
4/9 01:20	97.1	↑0.4
4/9 01:30	97.4	↑0.3	満潮
4/9 01:40	97.4	0	満潮
4/9 01:50	97.3	↓-0.1
4/9 02:00	97.0	↓-0.3
4/9 02:10	96.6	↓-0.4
4/9 02:20	96.0	↓-0.6
4/9 02:30	95.2	↓-0.8
4/9 02:40	94.3	↓-0.9
4/9 02:50	93.3	↓-1.0
4/9 03:00	92.1	↓-1.2
4/9 03:10	90.9	↓-1.2
4/9 03:20	89.5	↓-1.4
4/9 03:30	88.0	↓-1.5
4/9 03:40	86.5	↓-1.5
4/9 03:50	84.8	↓-1.7
4/9 04:00	83.1	↓-1.7
4/9 04:10	81.4	↓-1.7
4/9 04:20	79.6	↓-1.8
4/9 04:30	77.9	↓-1.7
4/9 04:40	76.1	↓-1.8
4/9 04:50	74.3	↓-1.8
4/9 05:00	72.6	↓-1.7
4/9 05:10	70.9	↓-1.7
4/9 05:20	69.2	↓-1.7
4/9 05:30	67.6	↓-1.6
4/9 05:40	66.1	↓-1.5
4/9 05:50	64.7	↓-1.4
4/9 06:00	63.4	↓-1.3
4/9 06:10	62.1	↓-1.3
4/9 06:20	61.1	↓-1.0
4/9 06:30	60.1	↓-1.0
4/9 06:40	59.3	↓-0.8
4/9 06:50	58.6	↓-0.7
4/9 07:00	58.1	↓-0.5
4/9 07:10	57.8	↓-0.3
4/9 07:20	57.6	↓-0.2	干潮
4/9 07:30	57.6	0
4/9 07:40	57.7	↑0.1
4/9 07:50	58.0	↑0.3
4/9 08:00	58.5	↑0.5
4/9 08:10	59.1	↑0.6
4/9 08:20	59.9	↑0.8
4/9 08:30	60.9	↑1.0
4/9 08:40	62.0	↑1.1
4/9 08:50	63.2	↑1.2
4/9 09:00	64.5	↑1.3
4/9 09:10	66.0	↑1.5
4/9 09:20	67.5	↑1.5
4/9 09:30	69.1	↑1.6
4/9 09:40	70.8	↑1.7
4/9 09:50	72.6	↑1.8
4/9 10:00	74.3	↑1.7
4/9 10:10	76.1	↑1.8
4/9 10:20	77.9	↑1.8
4/9 10:30	79.7	↑1.8
4/9 10:40	81.5	↑1.8
4/9 10:50	83.2	↑1.7
4/9 11:00	84.9	↑1.7
4/9 11:10	86.4	↑1.5
4/9 11:20	87.9	↑1.5
4/9 11:30	89.3	↑1.4
4/9 11:40	90.6	↑1.3
4/9 11:50	91.7	↑1.1
4/9 12:00	92.7	↑1.0
4/9 12:10	93.5	↑0.8
4/9 12:20	94.2	↑0.7
4/9 12:30	94.7	↑0.5
4/9 12:40	95.0	↑0.3
4/9 12:50	95.1	↑0.1	満潮
4/9 13:00	95.1	0
4/9 13:10	94.9	↓-0.2
4/9 13:20	94.4	↓-0.5
4/9 13:30	93.8	↓-0.6
4/9 13:40	93.0	↓-0.8
4/9 13:50	92.0	↓-1.0
4/9 14:00	90.9	↓-1.1
4/9 14:10	89.5	↓-1.4
4/9 14:20	88.0	↓-1.5
4/9 14:30	86.3	↓-1.7
4/9 14:40	84.5	↓-1.8
4/9 14:50	82.5	↓-2.0
4/9 15:00	80.4	↓-2.1
4/9 15:10	78.2	↓-2.2
4/9 15:20	75.9	↓-2.3
4/9 15:30	73.4	↓-2.5
4/9 15:40	70.9	↓-2.5
4/9 15:50	68.3	↓-2.6
4/9 16:00	65.7	↓-2.6
4/9 16:10	63.0	↓-2.7
4/9 16:20	60.2	↓-2.8
4/9 16:30	57.5	↓-2.7
4/9 16:40	54.8	↓-2.7
4/9 16:50	52.1	↓-2.7
4/9 17:00	49.5	↓-2.6
4/9 17:10	46.9	↓-2.6
4/9 17:20	44.4	↓-2.5
4/9 17:30	42.0	↓-2.4
4/9 17:40	39.7	↓-2.3
4/9 17:50	37.5	↓-2.2
4/9 18:00	35.4	↓-2.1
4/9 18:10	33.5	↓-1.9
4/9 18:20	31.8	↓-1.7
4/9 18:30	30.3	↓-1.5
4/9 18:40	28.9	↓-1.4
4/9 18:50	27.8	↓-1.1
4/9 19:00	26.9	↓-0.9
4/9 19:10	26.2	↓-0.7
4/9 19:20	25.7	↓-0.5
4/9 19:30	25.5	↓-0.2	干潮
4/9 19:40	25.4	↓-0.1
4/9 19:50	25.7	↑0.3
4/9 20:00	26.2	↑0.5
4/9 20:10	26.9	↑0.7
4/9 20:20	27.8	↑0.9
4/9 20:30	29.0	↑1.2
4/9 20:40	30.4	↑1.4
4/9 20:50	32.0	↑1.6
4/9 21:00	33.8	↑1.8
4/9 21:10	35.8	↑2.0
4/9 21:20	38.0	↑2.2
4/9 21:30	40.4	↑2.4
4/9 21:40	42.9	↑2.5
4/9 21:50	45.5	↑2.6
4/9 22:00	48.3	↑2.8
4/9 22:10	51.1	↑2.8
4/9 22:20	54.1	↑3.0
4/9 22:30	57.1	↑3.0
4/9 22:40	60.1	↑3.0
4/9 22:50	63.1	↑3.0
4/9 23:00	66.2	↑3.1	最大潮位差
4/9 23:10	69.2	↑3.0
4/9 23:20	72.2	↑3.0
4/9 23:30	75.1	↑2.9
4/9 23:40	78.0	↑2.9
4/9 23:50	80.7	↑2.7