19 (金)	04:47	09:54	15:21	22:22
	115cm	68cm	120cm	-5cm
大潮 出 06:22 入 17:24 出 16:53 入 06:05

那珂湊（茨城）2038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	25.7	↑3.8
2/19 00:10	29.7	↑4.0
2/19 00:20	33.9	↑4.2
2/19 00:30	38.1	↑4.2
2/19 00:40	42.4	↑4.3
2/19 00:50	46.8	↑4.4
2/19 01:00	51.2	↑4.4
2/19 01:10	55.6	↑4.4
2/19 01:20	60.0	↑4.4
2/19 01:30	64.4	↑4.4
2/19 01:40	68.7	↑4.3
2/19 01:50	72.9	↑4.2
2/19 02:00	77.0	↑4.1
2/19 02:10	81.0	↑4.0
2/19 02:20	84.9	↑3.9
2/19 02:30	88.5	↑3.6
2/19 02:40	92.0	↑3.5
2/19 02:50	95.2	↑3.2
2/19 03:00	98.3	↑3.1
2/19 03:10	101.1	↑2.8
2/19 03:20	103.6	↑2.5
2/19 03:30	105.9	↑2.3
2/19 03:40	108.0	↑2.1
2/19 03:50	109.7	↑1.7
2/19 04:00	111.2	↑1.5
2/19 04:10	112.3	↑1.1
2/19 04:20	113.2	↑0.9
2/19 04:30	113.8	↑0.6
2/19 04:40	114.1	↑0.3	満潮
2/19 04:50	114.2	↑0.1
2/19 05:00	113.9	↓-0.3
2/19 05:10	113.4	↓-0.5
2/19 05:20	112.7	↓-0.7
2/19 05:30	111.7	↓-1.0
2/19 05:40	110.4	↓-1.3
2/19 05:50	109.0	↓-1.4
2/19 06:00	107.4	↓-1.6
2/19 06:10	105.6	↓-1.8
2/19 06:20	103.6	↓-2.0
2/19 06:30	101.6	↓-2.0
2/19 06:40	99.4	↓-2.2
2/19 06:50	97.1	↓-2.3
2/19 07:00	94.8	↓-2.3
2/19 07:10	92.5	↓-2.3
2/19 07:20	90.1	↓-2.4
2/19 07:30	87.7	↓-2.4
2/19 07:40	85.4	↓-2.3
2/19 07:50	83.2	↓-2.2
2/19 08:00	81.0	↓-2.2
2/19 08:10	79.0	↓-2.0
2/19 08:20	77.0	↓-2.0
2/19 08:30	75.2	↓-1.8
2/19 08:40	73.6	↓-1.6
2/19 08:50	72.2	↓-1.4
2/19 09:00	70.9	↓-1.3
2/19 09:10	69.8	↓-1.1
2/19 09:20	69.0	↓-0.8
2/19 09:30	68.3	↓-0.7
2/19 09:40	67.9	↓-0.4
2/19 09:50	67.7	↓-0.2	干潮
2/19 10:00	67.8	↑0.1
2/19 10:10	68.0	↑0.2
2/19 10:20	68.5	↑0.5
2/19 10:30	69.2	↑0.7
2/19 10:40	70.2	↑1.0
2/19 10:50	71.3	↑1.1
2/19 11:00	72.6	↑1.3
2/19 11:10	74.2	↑1.6
2/19 11:20	75.8	↑1.6
2/19 11:30	77.7	↑1.9
2/19 11:40	79.7	↑2.0
2/19 11:50	81.8	↑2.1
2/19 12:00	84.0	↑2.2
2/19 12:10	86.3	↑2.3
2/19 12:20	88.7	↑2.4
2/19 12:30	91.1	↑2.4
2/19 12:40	93.6	↑2.5
2/19 12:50	96.0	↑2.4
2/19 13:00	98.5	↑2.5
2/19 13:10	100.9	↑2.4
2/19 13:20	103.2	↑2.3
2/19 13:30	105.5	↑2.3
2/19 13:40	107.6	↑2.1
2/19 13:50	109.7	↑2.1
2/19 14:00	111.6	↑1.9
2/19 14:10	113.3	↑1.7
2/19 14:20	114.9	↑1.6
2/19 14:30	116.3	↑1.4
2/19 14:40	117.4	↑1.1
2/19 14:50	118.3	↑0.9
2/19 15:00	119.0	↑0.7
2/19 15:10	119.4	↑0.4
2/19 15:20	119.6	↑0.2	満潮
2/19 15:30	119.4	↓-0.2
2/19 15:40	119.0	↓-0.4
2/19 15:50	118.3	↓-0.7
2/19 16:00	117.3	↓-1.0
2/19 16:10	116.0	↓-1.3
2/19 16:20	114.3	↓-1.7
2/19 16:30	112.4	↓-1.9
2/19 16:40	110.2	↓-2.2
2/19 16:50	107.7	↓-2.5
2/19 17:00	104.9	↓-2.8
2/19 17:10	101.9	↓-3.0
2/19 17:20	98.6	↓-3.3
2/19 17:30	95.0	↓-3.6
2/19 17:40	91.2	↓-3.8
2/19 17:50	87.2	↓-4.0
2/19 18:00	83.0	↓-4.2
2/19 18:10	78.7	↓-4.3
2/19 18:20	74.2	↓-4.5
2/19 18:30	69.6	↓-4.6
2/19 18:40	64.9	↓-4.7
2/19 18:50	60.2	↓-4.7
2/19 19:00	55.4	↓-4.8	最大潮位差
2/19 19:10	50.6	↓-4.8	最大潮位差
2/19 19:20	45.9	↓-4.7
2/19 19:30	41.2	↓-4.7
2/19 19:40	36.6	↓-4.6
2/19 19:50	32.1	↓-4.5
2/19 20:00	27.7	↓-4.4
2/19 20:10	23.5	↓-4.2
2/19 20:20	19.5	↓-4.0
2/19 20:30	15.8	↓-3.7
2/19 20:40	12.2	↓-3.6
2/19 20:50	9.0	↓-3.2
2/19 21:00	6.0	↓-3.0
2/19 21:10	3.4	↓-2.6
2/19 21:20	1.0	↓-2.4
2/19 21:30	-1.0	↓-2.0
2/19 21:40	-2.7	↓-1.7
2/19 21:50	-4.0	↓-1.3
2/19 22:00	-4.9	↓-0.9
2/19 22:10	-5.5	↓-0.6
2/19 22:20	-5.7	↓-0.2	干潮
2/19 22:30	-5.6	↑0.1
2/19 22:40	-5.1	↑0.5
2/19 22:50	-4.2	↑0.9
2/19 23:00	-3.0	↑1.2
2/19 23:10	-1.4	↑1.6
2/19 23:20	0.5	↑1.9
2/19 23:30	2.7	↑2.2
2/19 23:40	5.2	↑2.5
2/19 23:50	8.0	↑2.8