11 (木)	04:50	09:45	15:01	22:14
	114cm	77cm	121cm	-7cm
大潮 出 06:30 入 17:16 出 06:22 入 16:32

那珂湊（茨城）2021年02月11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
2/11 00:00	26.4	↑3.9
2/11 00:10	30.5	↑4.1
2/11 00:20	34.6	↑4.1
2/11 00:30	38.9	↑4.3
2/11 00:40	43.2	↑4.3
2/11 00:50	47.6	↑4.4
2/11 01:00	52.0	↑4.4
2/11 01:10	56.4	↑4.4
2/11 01:20	60.7	↑4.3
2/11 01:30	65.1	↑4.4
2/11 01:40	69.3	↑4.2
2/11 01:50	73.5	↑4.2
2/11 02:00	77.5	↑4.0
2/11 02:10	81.4	↑3.9
2/11 02:20	85.1	↑3.7
2/11 02:30	88.7	↑3.6
2/11 02:40	92.1	↑3.4
2/11 02:50	95.3	↑3.2
2/11 03:00	98.2	↑2.9
2/11 03:10	101.0	↑2.8
2/11 03:20	103.5	↑2.5
2/11 03:30	105.7	↑2.2
2/11 03:40	107.7	↑2.0
2/11 03:50	109.4	↑1.7
2/11 04:00	110.8	↑1.4
2/11 04:10	112.0	↑1.2
2/11 04:20	112.9	↑0.9
2/11 04:30	113.5	↑0.6
2/11 04:40	113.9	↑0.4	満潮
2/11 04:50	114.0	↑0.1	満潮
2/11 05:00	113.8	↓-0.2
2/11 05:10	113.4	↓-0.4
2/11 05:20	112.8	↓-0.6
2/11 05:30	112.0	↓-0.8
2/11 05:40	111.0	↓-1.0
2/11 05:50	109.7	↓-1.3
2/11 06:00	108.4	↓-1.3
2/11 06:10	106.8	↓-1.6
2/11 06:20	105.2	↓-1.6
2/11 06:30	103.4	↓-1.8
2/11 06:40	101.6	↓-1.8
2/11 06:50	99.7	↓-1.9
2/11 07:00	97.7	↓-2.0
2/11 07:10	95.8	↓-1.9
2/11 07:20	93.8	↓-2.0
2/11 07:30	91.8	↓-2.0
2/11 07:40	89.9	↓-1.9
2/11 07:50	88.1	↓-1.8
2/11 08:00	86.3	↓-1.8
2/11 08:10	84.7	↓-1.6
2/11 08:20	83.1	↓-1.6
2/11 08:30	81.7	↓-1.4
2/11 08:40	80.5	↓-1.2
2/11 08:50	79.4	↓-1.1
2/11 09:00	78.4	↓-1.0
2/11 09:10	77.7	↓-0.7
2/11 09:20	77.1	↓-0.6
2/11 09:30	76.8	↓-0.3
2/11 09:40	76.6	↓-0.2	干潮
2/11 09:50	76.6	0
2/11 10:00	76.8	↑0.2
2/11 10:10	77.3	↑0.5
2/11 10:20	77.9	↑0.6
2/11 10:30	78.7	↑0.8
2/11 10:40	79.7	↑1.0
2/11 10:50	80.8	↑1.1
2/11 11:00	82.2	↑1.4
2/11 11:10	83.6	↑1.4
2/11 11:20	85.2	↑1.6
2/11 11:30	87.0	↑1.8
2/11 11:40	88.8	↑1.8
2/11 11:50	90.8	↑2.0
2/11 12:00	92.8	↑2.0
2/11 12:10	94.9	↑2.1
2/11 12:20	97.0	↑2.1
2/11 12:30	99.1	↑2.1
2/11 12:40	101.2	↑2.1
2/11 12:50	103.3	↑2.1
2/11 13:00	105.4	↑2.1
2/11 13:10	107.4	↑2.0
2/11 13:20	109.3	↑1.9
2/11 13:30	111.2	↑1.9
2/11 13:40	112.9	↑1.7
2/11 13:50	114.4	↑1.5
2/11 14:00	115.8	↑1.4
2/11 14:10	117.1	↑1.3
2/11 14:20	118.1	↑1.0
2/11 14:30	119.0	↑0.9
2/11 14:40	119.6	↑0.6
2/11 14:50	119.9	↑0.3
2/11 15:00	120.1	↑0.2	満潮
2/11 15:10	119.9	↓-0.2
2/11 15:20	119.5	↓-0.4
2/11 15:30	118.9	↓-0.6
2/11 15:40	117.9	↓-1.0
2/11 15:50	116.7	↓-1.2
2/11 16:00	115.2	↓-1.5
2/11 16:10	113.3	↓-1.9
2/11 16:20	111.3	↓-2.0
2/11 16:30	108.9	↓-2.4
2/11 16:40	106.2	↓-2.7
2/11 16:50	103.3	↓-2.9
2/11 17:00	100.2	↓-3.1
2/11 17:10	96.8	↓-3.4
2/11 17:20	93.1	↓-3.7
2/11 17:30	89.3	↓-3.8
2/11 17:40	85.3	↓-4.0
2/11 17:50	81.1	↓-4.2
2/11 18:00	76.7	↓-4.4
2/11 18:10	72.2	↓-4.5
2/11 18:20	67.7	↓-4.5
2/11 18:30	63.0	↓-4.7
2/11 18:40	58.3	↓-4.7
2/11 18:50	53.6	↓-4.7
2/11 19:00	48.8	↓-4.8	最大潮位差
2/11 19:10	44.2	↓-4.6
2/11 19:20	39.5	↓-4.7
2/11 19:30	35.0	↓-4.5
2/11 19:40	30.6	↓-4.4
2/11 19:50	26.3	↓-4.3
2/11 20:00	22.1	↓-4.2
2/11 20:10	18.2	↓-3.9
2/11 20:20	14.5	↓-3.7
2/11 20:30	11.0	↓-3.5
2/11 20:40	7.8	↓-3.2
2/11 20:50	4.9	↓-2.9
2/11 21:00	2.2	↓-2.7
2/11 21:10	-0.1	↓-2.3
2/11 21:20	-2.2	↓-2.1
2/11 21:30	-3.8	↓-1.6
2/11 21:40	-5.2	↓-1.4
2/11 21:50	-6.2	↓-1.0
2/11 22:00	-6.8	↓-0.6
2/11 22:10	-7.1	↓-0.3	干潮
2/11 22:20	-7.0	↑0.1
2/11 22:30	-6.6	↑0.4
2/11 22:40	-5.9	↑0.7
2/11 22:50	-4.7	↑1.2
2/11 23:00	-3.3	↑1.4
2/11 23:10	-1.5	↑1.8
2/11 23:20	0.6	↑2.1
2/11 23:30	3.0	↑2.4
2/11 23:40	5.7	↑2.7
2/11 23:50	8.6	↑2.9