20 (水)	03:22	07:54	12:47	20:31
	105cm	86cm	111cm	-3cm
中潮 出 06:20 入 17:25 出 04:16 入 14:03

那珂湊（茨城）2058年02月20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
2/20 00:00	70.0	↑3.2
2/20 00:10	73.2	↑3.2
2/20 00:20	76.2	↑3.0
2/20 00:30	79.1	↑2.9
2/20 00:40	81.9	↑2.8
2/20 00:50	84.6	↑2.7
2/20 01:00	87.1	↑2.5
2/20 01:10	89.5	↑2.4
2/20 01:20	91.7	↑2.2
2/20 01:30	93.7	↑2.0
2/20 01:40	95.6	↑1.9
2/20 01:50	97.3	↑1.7
2/20 02:00	98.8	↑1.5
2/20 02:10	100.1	↑1.3
2/20 02:20	101.2	↑1.1
2/20 02:30	102.2	↑1.0
2/20 02:40	103.0	↑0.8
2/20 02:50	103.6	↑0.6
2/20 03:00	104.0	↑0.4
2/20 03:10	104.2	↑0.2
2/20 03:20	104.3	↑0.1	満潮
2/20 03:30	104.3	0
2/20 03:40	104.1	↓-0.2
2/20 03:50	103.7	↓-0.4
2/20 04:00	103.3	↓-0.4
2/20 04:10	102.7	↓-0.6
2/20 04:20	102.0	↓-0.7
2/20 04:30	101.2	↓-0.8
2/20 04:40	100.4	↓-0.8
2/20 04:50	99.4	↓-1.0
2/20 05:00	98.4	↓-1.0
2/20 05:10	97.4	↓-1.0
2/20 05:20	96.3	↓-1.1
2/20 05:30	95.2	↓-1.1
2/20 05:40	94.2	↓-1.0
2/20 05:50	93.1	↓-1.1
2/20 06:00	92.0	↓-1.1
2/20 06:10	91.0	↓-1.0
2/20 06:20	90.0	↓-1.0
2/20 06:30	89.1	↓-0.9
2/20 06:40	88.3	↓-0.8
2/20 06:50	87.6	↓-0.7
2/20 07:00	86.9	↓-0.7
2/20 07:10	86.3	↓-0.6
2/20 07:20	85.9	↓-0.4
2/20 07:30	85.5	↓-0.4
2/20 07:40	85.3	↓-0.2
2/20 07:50	85.2	↓-0.1	干潮
2/20 08:00	85.3	↑0.1
2/20 08:10	85.4	↑0.1
2/20 08:20	85.7	↑0.3
2/20 08:30	86.1	↑0.4
2/20 08:40	86.7	↑0.6
2/20 08:50	87.3	↑0.6
2/20 09:00	88.1	↑0.8
2/20 09:10	88.9	↑0.8
2/20 09:20	89.9	↑1.0
2/20 09:30	91.0	↑1.1
2/20 09:40	92.1	↑1.1
2/20 09:50	93.3	↑1.2
2/20 10:00	94.6	↑1.3
2/20 10:10	95.9	↑1.3
2/20 10:20	97.3	↑1.4
2/20 10:30	98.6	↑1.3
2/20 10:40	100.0	↑1.4
2/20 10:50	101.3	↑1.3
2/20 11:00	102.6	↑1.3
2/20 11:10	103.9	↑1.3
2/20 11:20	105.1	↑1.2
2/20 11:30	106.2	↑1.1
2/20 11:40	107.2	↑1.0
2/20 11:50	108.1	↑0.9
2/20 12:00	109.0	↑0.9
2/20 12:10	109.6	↑0.6
2/20 12:20	110.1	↑0.5
2/20 12:30	110.5	↑0.4
2/20 12:40	110.7	↑0.2	満潮
2/20 12:50	110.7	0
2/20 13:00	110.6	↓-0.1
2/20 13:10	110.2	↓-0.4
2/20 13:20	109.6	↓-0.6
2/20 13:30	108.9	↓-0.7
2/20 13:40	107.9	↓-1.0
2/20 13:50	106.7	↓-1.2
2/20 14:00	105.3	↓-1.4
2/20 14:10	103.7	↓-1.6
2/20 14:20	101.9	↓-1.8
2/20 14:30	99.8	↓-2.1
2/20 14:40	97.6	↓-2.2
2/20 14:50	95.1	↓-2.5
2/20 15:00	92.5	↓-2.6
2/20 15:10	89.7	↓-2.8
2/20 15:20	86.7	↓-3.0
2/20 15:30	83.5	↓-3.2
2/20 15:40	80.2	↓-3.3
2/20 15:50	76.8	↓-3.4
2/20 16:00	73.2	↓-3.6
2/20 16:10	69.5	↓-3.7
2/20 16:20	65.7	↓-3.8
2/20 16:30	61.9	↓-3.8
2/20 16:40	58.0	↓-3.9
2/20 16:50	54.1	↓-3.9
2/20 17:00	50.1	↓-4.0	最大潮位差
2/20 17:10	46.2	↓-3.9
2/20 17:20	42.2	↓-4.0	最大潮位差
2/20 17:30	38.4	↓-3.8
2/20 17:40	34.5	↓-3.9
2/20 17:50	30.8	↓-3.7
2/20 18:00	27.2	↓-3.6
2/20 18:10	23.7	↓-3.5
2/20 18:20	20.3	↓-3.4
2/20 18:30	17.1	↓-3.2
2/20 18:40	14.1	↓-3.0
2/20 18:50	11.2	↓-2.9
2/20 19:00	8.6	↓-2.6
2/20 19:10	6.3	↓-2.3
2/20 19:20	4.1	↓-2.2
2/20 19:30	2.2	↓-1.9
2/20 19:40	0.6	↓-1.6
2/20 19:50	-0.7	↓-1.3
2/20 20:00	-1.7	↓-1.0
2/20 20:10	-2.5	↓-0.8
2/20 20:20	-2.9	↓-0.4
2/20 20:30	-3.1	↓-0.2	干潮
2/20 20:40	-2.9	↑0.2
2/20 20:50	-2.5	↑0.4
2/20 21:00	-1.7	↑0.8
2/20 21:10	-0.7	↑1.0
2/20 21:20	0.6	↑1.3
2/20 21:30	2.3	↑1.7
2/20 21:40	4.1	↑1.8
2/20 21:50	6.3	↑2.2
2/20 22:00	8.7	↑2.4
2/20 22:10	11.3	↑2.6
2/20 22:20	14.2	↑2.9
2/20 22:30	17.2	↑3.0
2/20 22:40	20.5	↑3.3
2/20 22:50	23.9	↑3.4
2/20 23:00	27.4	↑3.5
2/20 23:10	31.1	↑3.7
2/20 23:20	34.9	↑3.8
2/20 23:30	38.8	↑3.9
2/20 23:40	42.7	↑3.9
2/20 23:50	46.7	↑4.0	最大潮位差