12 (水)	01:34	07:27	11:45	18:52
	98cm	70cm	84cm	27cm
長潮 出 05:09 入 18:10 出 02:33 入 13:16

那珂湊（茨城）2045年04月12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
4/12 00:00	91.5	↑1.4
4/12 00:10	92.7	↑1.2
4/12 00:20	93.8	↑1.1
4/12 00:30	94.8	↑1.0
4/12 00:40	95.6	↑0.8
4/12 00:50	96.3	↑0.7
4/12 01:00	96.8	↑0.5
4/12 01:10	97.2	↑0.4
4/12 01:20	97.4	↑0.2
4/12 01:30	97.5	↑0.1	満潮
4/12 01:40	97.5	0
4/12 01:50	97.3	↓-0.2
4/12 02:00	97.1	↓-0.2
4/12 02:10	96.7	↓-0.4
4/12 02:20	96.2	↓-0.5
4/12 02:30	95.6	↓-0.6
4/12 02:40	94.9	↓-0.7
4/12 02:50	94.1	↓-0.8
4/12 03:00	93.3	↓-0.8
4/12 03:10	92.3	↓-1.0
4/12 03:20	91.3	↓-1.0
4/12 03:30	90.3	↓-1.0
4/12 03:40	89.2	↓-1.1
4/12 03:50	88.0	↓-1.2
4/12 04:00	86.8	↓-1.2
4/12 04:10	85.6	↓-1.2
4/12 04:20	84.4	↓-1.2
4/12 04:30	83.2	↓-1.2
4/12 04:40	82.0	↓-1.2
4/12 04:50	80.8	↓-1.2
4/12 05:00	79.6	↓-1.2
4/12 05:10	78.5	↓-1.1
4/12 05:20	77.4	↓-1.1
4/12 05:30	76.3	↓-1.1
4/12 05:40	75.3	↓-1.0
4/12 05:50	74.4	↓-0.9
4/12 06:00	73.5	↓-0.9
4/12 06:10	72.7	↓-0.8
4/12 06:20	72.0	↓-0.7
4/12 06:30	71.4	↓-0.6
4/12 06:40	70.9	↓-0.5
4/12 06:50	70.4	↓-0.5
4/12 07:00	70.1	↓-0.3
4/12 07:10	69.9	↓-0.2
4/12 07:20	69.8	↓-0.1	干潮
4/12 07:30	69.8	0
4/12 07:40	69.9	↑0.1
4/12 07:50	70.1	↑0.2
4/12 08:00	70.3	↑0.2
4/12 08:10	70.7	↑0.4
4/12 08:20	71.2	↑0.5
4/12 08:30	71.7	↑0.5
4/12 08:40	72.3	↑0.6
4/12 08:50	73.0	↑0.7
4/12 09:00	73.7	↑0.7
4/12 09:10	74.5	↑0.8
4/12 09:20	75.3	↑0.8
4/12 09:30	76.1	↑0.8
4/12 09:40	77.0	↑0.9
4/12 09:50	77.8	↑0.8
4/12 10:00	78.6	↑0.8
4/12 10:10	79.4	↑0.8
4/12 10:20	80.2	↑0.8
4/12 10:30	80.9	↑0.7
4/12 10:40	81.6	↑0.7
4/12 10:50	82.1	↑0.5
4/12 11:00	82.6	↑0.5
4/12 11:10	83.1	↑0.5
4/12 11:20	83.4	↑0.3
4/12 11:30	83.6	↑0.2
4/12 11:40	83.7	↑0.1	満潮
4/12 11:50	83.7	0
4/12 12:00	83.5	↓-0.2
4/12 12:10	83.3	↓-0.2
4/12 12:20	82.9	↓-0.4
4/12 12:30	82.4	↓-0.5
4/12 12:40	81.7	↓-0.7
4/12 12:50	80.9	↓-0.8
4/12 13:00	80.0	↓-0.9
4/12 13:10	79.0	↓-1.0
4/12 13:20	77.8	↓-1.2
4/12 13:30	76.5	↓-1.3
4/12 13:40	75.1	↓-1.4
4/12 13:50	73.6	↓-1.5
4/12 14:00	72.0	↓-1.6
4/12 14:10	70.3	↓-1.7
4/12 14:20	68.5	↓-1.8
4/12 14:30	66.7	↓-1.8
4/12 14:40	64.8	↓-1.9
4/12 14:50	62.8	↓-2.0
4/12 15:00	60.7	↓-2.1
4/12 15:10	58.6	↓-2.1
4/12 15:20	56.5	↓-2.1
4/12 15:30	54.4	↓-2.1
4/12 15:40	52.3	↓-2.1
4/12 15:50	50.2	↓-2.1
4/12 16:00	48.1	↓-2.1
4/12 16:10	46.0	↓-2.1
4/12 16:20	44.0	↓-2.0
4/12 16:30	42.0	↓-2.0
4/12 16:40	40.1	↓-1.9
4/12 16:50	38.2	↓-1.9
4/12 17:00	36.5	↓-1.7
4/12 17:10	34.8	↓-1.7
4/12 17:20	33.3	↓-1.5
4/12 17:30	31.9	↓-1.4
4/12 17:40	30.6	↓-1.3
4/12 17:50	29.5	↓-1.1
4/12 18:00	28.5	↓-1.0
4/12 18:10	27.7	↓-0.8
4/12 18:20	27.0	↓-0.7
4/12 18:30	26.5	↓-0.5
4/12 18:40	26.2	↓-0.3
4/12 18:50	26.1	↓-0.1	干潮
4/12 19:00	26.2	↑0.1
4/12 19:10	26.5	↑0.3
4/12 19:20	27.0	↑0.5
4/12 19:30	27.7	↑0.7
4/12 19:40	28.5	↑0.8
4/12 19:50	29.6	↑1.1
4/12 20:00	30.8	↑1.2
4/12 20:10	32.3	↑1.5
4/12 20:20	33.9	↑1.6
4/12 20:30	35.6	↑1.7
4/12 20:40	37.6	↑2.0
4/12 20:50	39.7	↑2.1
4/12 21:00	41.9	↑2.2
4/12 21:10	44.2	↑2.3
4/12 21:20	46.7	↑2.5
4/12 21:30	49.3	↑2.6
4/12 21:40	51.9	↑2.6
4/12 21:50	54.6	↑2.7
4/12 22:00	57.4	↑2.8
4/12 22:10	60.2	↑2.8
4/12 22:20	63.0	↑2.8
4/12 22:30	65.8	↑2.8
4/12 22:40	68.7	↑2.9	最大潮位差
4/12 22:50	71.4	↑2.7
4/12 23:00	74.2	↑2.8
4/12 23:10	76.8	↑2.6
4/12 23:20	79.4	↑2.6
4/12 23:30	81.9	↑2.5
4/12 23:40	84.3	↑2.4
4/12 23:50	86.6	↑2.3