19 (土)	04:43	09:42	14:52	22:02
	113cm	76cm	115cm	-4cm
大潮 出 06:21 入 17:24 出 05:59 入 16:12

那珂湊（茨城）2061年02月19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
2/19 00:00	32.3	↑3.8
2/19 00:10	36.2	↑3.9
2/19 00:20	40.2	↑4.0
2/19 00:30	44.3	↑4.1
2/19 00:40	48.5	↑4.2
2/19 00:50	52.6	↑4.1
2/19 01:00	56.8	↑4.2
2/19 01:10	60.9	↑4.1
2/19 01:20	65.0	↑4.1
2/19 01:30	69.1	↑4.1
2/19 01:40	73.0	↑3.9
2/19 01:50	76.9	↑3.9
2/19 02:00	80.6	↑3.7
2/19 02:10	84.2	↑3.6
2/19 02:20	87.7	↑3.5
2/19 02:30	90.9	↑3.2
2/19 02:40	94.0	↑3.1
2/19 02:50	96.9	↑2.9
2/19 03:00	99.5	↑2.6
2/19 03:10	101.9	↑2.4
2/19 03:20	104.1	↑2.2
2/19 03:30	106.1	↑2.0
2/19 03:40	107.8	↑1.7
2/19 03:50	109.2	↑1.4
2/19 04:00	110.4	↑1.2
2/19 04:10	111.3	↑0.9
2/19 04:20	112.0	↑0.7
2/19 04:30	112.4	↑0.4
2/19 04:40	112.6	↑0.2	満潮
2/19 04:50	112.5	↓-0.1
2/19 05:00	112.2	↓-0.3
2/19 05:10	111.7	↓-0.5
2/19 05:20	111.0	↓-0.7
2/19 05:30	110.0	↓-1.0
2/19 05:40	108.9	↓-1.1
2/19 05:50	107.6	↓-1.3
2/19 06:00	106.2	↓-1.4
2/19 06:10	104.6	↓-1.6
2/19 06:20	102.9	↓-1.7
2/19 06:30	101.2	↓-1.7
2/19 06:40	99.3	↓-1.9
2/19 06:50	97.4	↓-1.9
2/19 07:00	95.5	↓-1.9
2/19 07:10	93.5	↓-2.0
2/19 07:20	91.6	↓-1.9
2/19 07:30	89.7	↓-1.9
2/19 07:40	87.9	↓-1.8
2/19 07:50	86.1	↓-1.8
2/19 08:00	84.4	↓-1.7
2/19 08:10	82.8	↓-1.6
2/19 08:20	81.4	↓-1.4
2/19 08:30	80.0	↓-1.4
2/19 08:40	78.9	↓-1.1
2/19 08:50	77.8	↓-1.1
2/19 09:00	77.0	↓-0.8
2/19 09:10	76.3	↓-0.7
2/19 09:20	75.8	↓-0.5
2/19 09:30	75.5	↓-0.3
2/19 09:40	75.4	↓-0.1	干潮
2/19 09:50	75.5	↑0.1
2/19 10:00	75.7	↑0.2
2/19 10:10	76.2	↑0.5
2/19 10:20	76.8	↑0.6
2/19 10:30	77.6	↑0.8
2/19 10:40	78.6	↑1.0
2/19 10:50	79.7	↑1.1
2/19 11:00	81.0	↑1.3
2/19 11:10	82.4	↑1.4
2/19 11:20	83.9	↑1.5
2/19 11:30	85.6	↑1.7
2/19 11:40	87.3	↑1.7
2/19 11:50	89.1	↑1.8
2/19 12:00	91.0	↑1.9
2/19 12:10	92.9	↑1.9
2/19 12:20	94.8	↑1.9
2/19 12:30	96.7	↑1.9
2/19 12:40	98.7	↑2.0
2/19 12:50	100.5	↑1.8
2/19 13:00	102.4	↑1.9
2/19 13:10	104.1	↑1.7
2/19 13:20	105.8	↑1.7
2/19 13:30	107.4	↑1.6
2/19 13:40	108.8	↑1.4
2/19 13:50	110.1	↑1.3
2/19 14:00	111.3	↑1.2
2/19 14:10	112.3	↑1.0
2/19 14:20	113.0	↑0.7
2/19 14:30	113.6	↑0.6
2/19 14:40	114.0	↑0.4
2/19 14:50	114.1	↑0.1	満潮
2/19 15:00	114.0	↓-0.1
2/19 15:10	113.7	↓-0.3
2/19 15:20	113.1	↓-0.6
2/19 15:30	112.2	↓-0.9
2/19 15:40	111.1	↓-1.1
2/19 15:50	109.7	↓-1.4
2/19 16:00	108.0	↓-1.7
2/19 16:10	106.1	↓-1.9
2/19 16:20	103.9	↓-2.2
2/19 16:30	101.5	↓-2.4
2/19 16:40	98.8	↓-2.7
2/19 16:50	95.9	↓-2.9
2/19 17:00	92.7	↓-3.2
2/19 17:10	89.4	↓-3.3
2/19 17:20	85.8	↓-3.6
2/19 17:30	82.1	↓-3.7
2/19 17:40	78.2	↓-3.9
2/19 17:50	74.1	↓-4.1
2/19 18:00	69.9	↓-4.2
2/19 18:10	65.6	↓-4.3
2/19 18:20	61.3	↓-4.3
2/19 18:30	56.9	↓-4.4
2/19 18:40	52.5	↓-4.4
2/19 18:50	48.0	↓-4.5	最大潮位差
2/19 19:00	43.6	↓-4.4
2/19 19:10	39.3	↓-4.3
2/19 19:20	35.0	↓-4.3
2/19 19:30	30.8	↓-4.2
2/19 19:40	26.8	↓-4.0
2/19 19:50	22.9	↓-3.9
2/19 20:00	19.2	↓-3.7
2/19 20:10	15.7	↓-3.5
2/19 20:20	12.4	↓-3.3
2/19 20:30	9.4	↓-3.0
2/19 20:40	6.6	↓-2.8
2/19 20:50	4.1	↓-2.5
2/19 21:00	1.9	↓-2.2
2/19 21:10	0.1	↓-1.8
2/19 21:20	-1.5	↓-1.6
2/19 21:30	-2.7	↓-1.2
2/19 21:40	-3.6	↓-0.9
2/19 21:50	-4.2	↓-0.6
2/19 22:00	-4.4	↓-0.2	干潮
2/19 22:10	-4.3	↑0.1
2/19 22:20	-3.8	↑0.5
2/19 22:30	-3.0	↑0.8
2/19 22:40	-1.9	↑1.1
2/19 22:50	-0.4	↑1.5
2/19 23:00	1.3	↑1.7
2/19 23:10	3.4	↑2.1
2/19 23:20	5.8	↑2.4
2/19 23:30	8.4	↑2.6
2/19 23:40	11.3	↑2.9
2/19 23:50	14.4	↑3.1