14 (日)	06:17	11:40	17:22	23:58
	113cm	58cm	115cm	14cm
中潮 出 06:27 入 17:19 出 08:03 入 19:40

那珂湊（茨城）2021年02月14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
2/14 00:00	6.0	↑1.0
2/14 00:10	7.2	↑1.2
2/14 00:20	8.8	↑1.6
2/14 00:30	10.7	↑1.9
2/14 00:40	12.8	↑2.1
2/14 00:50	15.3	↑2.5
2/14 01:00	18.0	↑2.7
2/14 01:10	20.9	↑2.9
2/14 01:20	24.0	↑3.1
2/14 01:30	27.4	↑3.4
2/14 01:40	30.9	↑3.5
2/14 01:50	34.6	↑3.7
2/14 02:00	38.4	↑3.8
2/14 02:10	42.3	↑3.9
2/14 02:20	46.4	↑4.1
2/14 02:30	50.5	↑4.1
2/14 02:40	54.6	↑4.1
2/14 02:50	58.8	↑4.2	最大潮位差
2/14 03:00	63.0	↑4.2	最大潮位差
2/14 03:10	67.1	↑4.1
2/14 03:20	71.2	↑4.1
2/14 03:30	75.2	↑4.0
2/14 03:40	79.1	↑3.9
2/14 03:50	82.9	↑3.8
2/14 04:00	86.5	↑3.6
2/14 04:10	90.0	↑3.5
2/14 04:20	93.3	↑3.3
2/14 04:30	96.4	↑3.1
2/14 04:40	99.2	↑2.8
2/14 04:50	101.8	↑2.6
2/14 05:00	104.2	↑2.4
2/14 05:10	106.3	↑2.1
2/14 05:20	108.1	↑1.8
2/14 05:30	109.7	↑1.6
2/14 05:40	110.9	↑1.2
2/14 05:50	111.8	↑0.9
2/14 06:00	112.5	↑0.7
2/14 06:10	112.8	↑0.3	満潮
2/14 06:20	112.8	0
2/14 06:30	112.6	↓-0.2
2/14 06:40	112.0	↓-0.6
2/14 06:50	111.2	↓-0.8
2/14 07:00	110.1	↓-1.1
2/14 07:10	108.8	↓-1.3
2/14 07:20	107.2	↓-1.6
2/14 07:30	105.5	↓-1.7
2/14 07:40	103.5	↓-2.0
2/14 07:50	101.3	↓-2.2
2/14 08:00	99.1	↓-2.2
2/14 08:10	96.6	↓-2.5
2/14 08:20	94.1	↓-2.5
2/14 08:30	91.5	↓-2.6
2/14 08:40	88.9	↓-2.6
2/14 08:50	86.2	↓-2.7
2/14 09:00	83.5	↓-2.7
2/14 09:10	80.9	↓-2.6
2/14 09:20	78.3	↓-2.6
2/14 09:30	75.8	↓-2.5
2/14 09:40	73.4	↓-2.4
2/14 09:50	71.1	↓-2.3
2/14 10:00	68.9	↓-2.2
2/14 10:10	66.9	↓-2.0
2/14 10:20	65.0	↓-1.9
2/14 10:30	63.4	↓-1.6
2/14 10:40	61.9	↓-1.5
2/14 10:50	60.7	↓-1.2
2/14 11:00	59.7	↓-1.0
2/14 11:10	58.9	↓-0.8
2/14 11:20	58.3	↓-0.6
2/14 11:30	58.0	↓-0.3	干潮
2/14 11:40	57.9	↓-0.1	干潮
2/14 11:50	58.0	↑0.1
2/14 12:00	58.4	↑0.4
2/14 12:10	59.0	↑0.6
2/14 12:20	59.8	↑0.8
2/14 12:30	60.8	↑1.0
2/14 12:40	62.1	↑1.3
2/14 12:50	63.5	↑1.4
2/14 13:00	65.1	↑1.6
2/14 13:10	66.9	↑1.8
2/14 13:20	68.8	↑1.9
2/14 13:30	70.9	↑2.1
2/14 13:40	73.0	↑2.1
2/14 13:50	75.3	↑2.3
2/14 14:00	77.7	↑2.4
2/14 14:10	80.2	↑2.5
2/14 14:20	82.7	↑2.5
2/14 14:30	85.2	↑2.5
2/14 14:40	87.8	↑2.6
2/14 14:50	90.3	↑2.5
2/14 15:00	92.8	↑2.5
2/14 15:10	95.3	↑2.5
2/14 15:20	97.7	↑2.4
2/14 15:30	100.0	↑2.3
2/14 15:40	102.2	↑2.2
2/14 15:50	104.3	↑2.1
2/14 16:00	106.2	↑1.9
2/14 16:10	107.9	↑1.7
2/14 16:20	109.5	↑1.6
2/14 16:30	110.9	↑1.4
2/14 16:40	112.1	↑1.2
2/14 16:50	113.0	↑0.9
2/14 17:00	113.7	↑0.7
2/14 17:10	114.1	↑0.4
2/14 17:20	114.2	↑0.1	満潮
2/14 17:30	114.1	↓-0.1
2/14 17:40	113.7	↓-0.4
2/14 17:50	113.0	↓-0.7
2/14 18:00	112.1	↓-0.9
2/14 18:10	110.8	↓-1.3
2/14 18:20	109.3	↓-1.5
2/14 18:30	107.4	↓-1.9
2/14 18:40	105.3	↓-2.1
2/14 18:50	102.9	↓-2.4
2/14 19:00	100.3	↓-2.6
2/14 19:10	97.5	↓-2.8
2/14 19:20	94.4	↓-3.1
2/14 19:30	91.1	↓-3.3
2/14 19:40	87.6	↓-3.5
2/14 19:50	84.0	↓-3.6
2/14 20:00	80.2	↓-3.8
2/14 20:10	76.4	↓-3.8
2/14 20:20	72.4	↓-4.0
2/14 20:30	68.4	↓-4.0
2/14 20:40	64.3	↓-4.1
2/14 20:50	60.2	↓-4.1
2/14 21:00	56.2	↓-4.0
2/14 21:10	52.2	↓-4.0
2/14 21:20	48.2	↓-4.0
2/14 21:30	44.4	↓-3.8
2/14 21:40	40.7	↓-3.7
2/14 21:50	37.2	↓-3.5
2/14 22:00	33.9	↓-3.3
2/14 22:10	30.7	↓-3.2
2/14 22:20	27.8	↓-2.9
2/14 22:30	25.1	↓-2.7
2/14 22:40	22.6	↓-2.5
2/14 22:50	20.4	↓-2.2
2/14 23:00	18.5	↓-1.9
2/14 23:10	16.9	↓-1.6
2/14 23:20	15.6	↓-1.3
2/14 23:30	14.6	↓-1.0
2/14 23:40	13.9	↓-0.7
2/14 23:50	13.6	↓-0.3	干潮