11 (水)	05:48	10:33	15:44	23:00
	122cm	89cm	125cm	5cm
大潮 出 06:39 入 16:24 出 17:34 入 07:23

那珂湊（茨城）2030年12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
12/11 00:00	17.7	↑2.7
12/11 00:10	20.5	↑2.8
12/11 00:20	23.6	↑3.1
12/11 00:30	26.9	↑3.3
12/11 00:40	30.4	↑3.5
12/11 00:50	34.1	↑3.7
12/11 01:00	37.9	↑3.8
12/11 01:10	41.8	↑3.9
12/11 01:20	45.8	↑4.0
12/11 01:30	49.9	↑4.1
12/11 01:40	54.1	↑4.2
12/11 01:50	58.3	↑4.2
12/11 02:00	62.5	↑4.2
12/11 02:10	66.7	↑4.2
12/11 02:20	70.9	↑4.2
12/11 02:30	75.0	↑4.1
12/11 02:40	79.1	↑4.1
12/11 02:50	83.1	↑4.0
12/11 03:00	86.9	↑3.8
12/11 03:10	90.6	↑3.7
12/11 03:20	94.2	↑3.6
12/11 03:30	97.6	↑3.4
12/11 03:40	100.8	↑3.2
12/11 03:50	103.8	↑3.0
12/11 04:00	106.7	↑2.9
12/11 04:10	109.2	↑2.5
12/11 04:20	111.6	↑2.4
12/11 04:30	113.7	↑2.1
12/11 04:40	115.5	↑1.8
12/11 04:50	117.1	↑1.6
12/11 05:00	118.5	↑1.4
12/11 05:10	119.5	↑1.0
12/11 05:20	120.3	↑0.8
12/11 05:30	120.9	↑0.6
12/11 05:40	121.2	↑0.3	満潮
12/11 05:50	121.2	0
12/11 06:00	121.1	↓-0.1
12/11 06:10	120.6	↓-0.5
12/11 06:20	120.0	↓-0.6
12/11 06:30	119.2	↓-0.8
12/11 06:40	118.2	↓-1.0
12/11 06:50	117.0	↓-1.2
12/11 07:00	115.7	↓-1.3
12/11 07:10	114.2	↓-1.5
12/11 07:20	112.6	↓-1.6
12/11 07:30	111.0	↓-1.6
12/11 07:40	109.3	↓-1.7
12/11 07:50	107.5	↓-1.8
12/11 08:00	105.7	↓-1.8
12/11 08:10	103.9	↓-1.8
12/11 08:20	102.1	↓-1.8
12/11 08:30	100.4	↓-1.7
12/11 08:40	98.7	↓-1.7
12/11 08:50	97.1	↓-1.6
12/11 09:00	95.6	↓-1.5
12/11 09:10	94.2	↓-1.4
12/11 09:20	92.9	↓-1.3
12/11 09:30	91.8	↓-1.1
12/11 09:40	90.8	↓-1.0
12/11 09:50	89.9	↓-0.9
12/11 10:00	89.3	↓-0.6
12/11 10:10	88.8	↓-0.5
12/11 10:20	88.5	↓-0.3
12/11 10:30	88.4	↓-0.1	干潮
12/11 10:40	88.4	0
12/11 10:50	88.6	↑0.2
12/11 11:00	89.0	↑0.4
12/11 11:10	89.6	↑0.6
12/11 11:20	90.4	↑0.8
12/11 11:30	91.2	↑0.8
12/11 11:40	92.3	↑1.1
12/11 11:50	93.5	↑1.2
12/11 12:00	94.8	↑1.3
12/11 12:10	96.2	↑1.4
12/11 12:20	97.7	↑1.5
12/11 12:30	99.3	↑1.6
12/11 12:40	101.0	↑1.7
12/11 12:50	102.8	↑1.8
12/11 13:00	104.5	↑1.7
12/11 13:10	106.3	↑1.8
12/11 13:20	108.1	↑1.8
12/11 13:30	109.9	↑1.8
12/11 13:40	111.7	↑1.8
12/11 13:50	113.4	↑1.7
12/11 14:00	115.1	↑1.7
12/11 14:10	116.7	↑1.6
12/11 14:20	118.2	↑1.5
12/11 14:30	119.5	↑1.3
12/11 14:40	120.8	↑1.3
12/11 14:50	121.9	↑1.1
12/11 15:00	122.8	↑0.9
12/11 15:10	123.6	↑0.8
12/11 15:20	124.2	↑0.6
12/11 15:30	124.6	↑0.4
12/11 15:40	124.7	↑0.1	満潮
12/11 15:50	124.7	0
12/11 16:00	124.4	↓-0.3
12/11 16:10	123.8	↓-0.6
12/11 16:20	123.1	↓-0.7
12/11 16:30	122.0	↓-1.1
12/11 16:40	120.7	↓-1.3
12/11 16:50	119.2	↓-1.5
12/11 17:00	117.4	↓-1.8
12/11 17:10	115.3	↓-2.1
12/11 17:20	113.0	↓-2.3
12/11 17:30	110.4	↓-2.6
12/11 17:40	107.6	↓-2.8
12/11 17:50	104.5	↓-3.1
12/11 18:00	101.2	↓-3.3
12/11 18:10	97.7	↓-3.5
12/11 18:20	94.1	↓-3.6
12/11 18:30	90.2	↓-3.9
12/11 18:40	86.2	↓-4.0
12/11 18:50	82.1	↓-4.1
12/11 19:00	77.8	↓-4.3
12/11 19:10	73.5	↓-4.3
12/11 19:20	69.1	↓-4.4
12/11 19:30	64.6	↓-4.5	最大潮位差
12/11 19:40	60.2	↓-4.4
12/11 19:50	55.7	↓-4.5	最大潮位差
12/11 20:00	51.3	↓-4.4
12/11 20:10	47.0	↓-4.3
12/11 20:20	42.8	↓-4.2
12/11 20:30	38.6	↓-4.2
12/11 20:40	34.6	↓-4.0
12/11 20:50	30.8	↓-3.8
12/11 21:00	27.2	↓-3.6
12/11 21:10	23.8	↓-3.4
12/11 21:20	20.6	↓-3.2
12/11 21:30	17.7	↓-2.9
12/11 21:40	15.0	↓-2.7
12/11 21:50	12.7	↓-2.3
12/11 22:00	10.6	↓-2.1
12/11 22:10	8.8	↓-1.8
12/11 22:20	7.4	↓-1.4
12/11 22:30	6.2	↓-1.2
12/11 22:40	5.4	↓-0.8
12/11 22:50	5.0	↓-0.4	干潮
12/11 23:00	4.8	↓-0.2	干潮
12/11 23:10	5.0	↑0.2
12/11 23:20	5.5	↑0.5
12/11 23:30	6.3	↑0.8
12/11 23:40	7.5	↑1.2
12/11 23:50	8.9	↑1.4