12 (金)	04:11	09:33	15:05	21:53
	109cm	59cm	112cm	4cm
大潮 出 05:54 入 17:43 出 05:34 入 16:28

那珂湊（茨城）2021年03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
3/12 00:00	40.5	↑3.9
3/12 00:10	44.4	↑3.9
3/12 00:20	48.4	↑4.0
3/12 00:30	52.5	↑4.1
3/12 00:40	56.5	↑4.0
3/12 00:50	60.6	↑4.1
3/12 01:00	64.6	↑4.0
3/12 01:10	68.5	↑3.9
3/12 01:20	72.4	↑3.9
3/12 01:30	76.1	↑3.7
3/12 01:40	79.8	↑3.7
3/12 01:50	83.2	↑3.4
3/12 02:00	86.6	↑3.4
3/12 02:10	89.7	↑3.1
3/12 02:20	92.6	↑2.9
3/12 02:30	95.4	↑2.8
3/12 02:40	97.9	↑2.5
3/12 02:50	100.1	↑2.2
3/12 03:00	102.2	↑2.1
3/12 03:10	103.9	↑1.7
3/12 03:20	105.4	↑1.5
3/12 03:30	106.6	↑1.2
3/12 03:40	107.6	↑1.0
3/12 03:50	108.2	↑0.6
3/12 04:00	108.6	↑0.4
3/12 04:10	108.8	↑0.2	満潮
3/12 04:20	108.6	↓-0.2
3/12 04:30	108.2	↓-0.4
3/12 04:40	107.6	↓-0.6
3/12 04:50	106.7	↓-0.9
3/12 05:00	105.6	↓-1.1
3/12 05:10	104.2	↓-1.4
3/12 05:20	102.7	↓-1.5
3/12 05:30	101.0	↓-1.7
3/12 05:40	99.1	↓-1.9
3/12 05:50	97.1	↓-2.0
3/12 06:00	95.0	↓-2.1
3/12 06:10	92.7	↓-2.3
3/12 06:20	90.4	↓-2.3
3/12 06:30	88.0	↓-2.4
3/12 06:40	85.6	↓-2.4
3/12 06:50	83.2	↓-2.4
3/12 07:00	80.7	↓-2.5
3/12 07:10	78.3	↓-2.4
3/12 07:20	76.0	↓-2.3
3/12 07:30	73.7	↓-2.3
3/12 07:40	71.6	↓-2.1
3/12 07:50	69.5	↓-2.1
3/12 08:00	67.6	↓-1.9
3/12 08:10	65.8	↓-1.8
3/12 08:20	64.2	↓-1.6
3/12 08:30	62.8	↓-1.4
3/12 08:40	61.5	↓-1.3
3/12 08:50	60.5	↓-1.0
3/12 09:00	59.7	↓-0.8
3/12 09:10	59.1	↓-0.6
3/12 09:20	58.7	↓-0.4
3/12 09:30	58.6	↓-0.1	干潮
3/12 09:40	58.6	0
3/12 09:50	58.9	↑0.3
3/12 10:00	59.5	↑0.6
3/12 10:10	60.2	↑0.7
3/12 10:20	61.2	↑1.0
3/12 10:30	62.4	↑1.2
3/12 10:40	63.7	↑1.3
3/12 10:50	65.3	↑1.6
3/12 11:00	67.0	↑1.7
3/12 11:10	68.9	↑1.9
3/12 11:20	70.9	↑2.0
3/12 11:30	73.0	↑2.1
3/12 11:40	75.3	↑2.3
3/12 11:50	77.6	↑2.3
3/12 12:00	80.1	↑2.5
3/12 12:10	82.5	↑2.4
3/12 12:20	85.0	↑2.5
3/12 12:30	87.5	↑2.5
3/12 12:40	90.0	↑2.5
3/12 12:50	92.4	↑2.4
3/12 13:00	94.8	↑2.4
3/12 13:10	97.1	↑2.3
3/12 13:20	99.4	↑2.3
3/12 13:30	101.4	↑2.0
3/12 13:40	103.4	↑2.0
3/12 13:50	105.2	↑1.8
3/12 14:00	106.8	↑1.6
3/12 14:10	108.2	↑1.4
3/12 14:20	109.5	↑1.3
3/12 14:30	110.5	↑1.0
3/12 14:40	111.2	↑0.7
3/12 14:50	111.7	↑0.5
3/12 15:00	112.0	↑0.3	満潮
3/12 15:10	111.9	↓-0.1
3/12 15:20	111.6	↓-0.3
3/12 15:30	111.1	↓-0.5
3/12 15:40	110.2	↓-0.9
3/12 15:50	109.0	↓-1.2
3/12 16:00	107.6	↓-1.4
3/12 16:10	105.9	↓-1.7
3/12 16:20	103.9	↓-2.0
3/12 16:30	101.7	↓-2.2
3/12 16:40	99.2	↓-2.5
3/12 16:50	96.4	↓-2.8
3/12 17:00	93.4	↓-3.0
3/12 17:10	90.2	↓-3.2
3/12 17:20	86.8	↓-3.4
3/12 17:30	83.2	↓-3.6
3/12 17:40	79.4	↓-3.8
3/12 17:50	75.5	↓-3.9
3/12 18:00	71.5	↓-4.0
3/12 18:10	67.4	↓-4.1
3/12 18:20	63.3	↓-4.1
3/12 18:30	59.0	↓-4.3	最大潮位差
3/12 18:40	54.8	↓-4.2
3/12 18:50	50.6	↓-4.2
3/12 19:00	46.4	↓-4.2
3/12 19:10	42.3	↓-4.1
3/12 19:20	38.3	↓-4.0
3/12 19:30	34.4	↓-3.9
3/12 19:40	30.6	↓-3.8
3/12 19:50	27.0	↓-3.6
3/12 20:00	23.6	↓-3.4
3/12 20:10	20.4	↓-3.2
3/12 20:20	17.5	↓-2.9
3/12 20:30	14.8	↓-2.7
3/12 20:40	12.3	↓-2.5
3/12 20:50	10.2	↓-2.1
3/12 21:00	8.3	↓-1.9
3/12 21:10	6.8	↓-1.5
3/12 21:20	5.6	↓-1.2
3/12 21:30	4.7	↓-0.9
3/12 21:40	4.1	↓-0.6
3/12 21:50	3.9	↓-0.2	干潮
3/12 22:00	4.0	↑0.1
3/12 22:10	4.4	↑0.4
3/12 22:20	5.2	↑0.8
3/12 22:30	6.3	↑1.1
3/12 22:40	7.7	↑1.4
3/12 22:50	9.4	↑1.7
3/12 23:00	11.4	↑2.0
3/12 23:10	13.7	↑2.3
3/12 23:20	16.2	↑2.5
3/12 23:30	19.1	↑2.9
3/12 23:40	22.1	↑3.0
3/12 23:50	25.3	↑3.2