7 (月)	06:49	12:01	17:30	-
	120cm	73cm	120cm	-
中潮 出 06:50 入 16:40 出 08:39 入 20:09

那珂湊（茨城）2030年01月7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
1/7 00:00	2.7	↑0.4
1/7 00:10	3.4	↑0.7
1/7 00:20	4.5	↑1.1
1/7 00:30	5.9	↑1.4
1/7 00:40	7.5	↑1.6
1/7 00:50	9.5	↑2.0
1/7 01:00	11.8	↑2.3
1/7 01:10	14.4	↑2.6
1/7 01:20	17.2	↑2.8
1/7 01:30	20.2	↑3.0
1/7 01:40	23.5	↑3.3
1/7 01:50	27.0	↑3.5
1/7 02:00	30.7	↑3.7
1/7 02:10	34.5	↑3.8
1/7 02:20	38.5	↑4.0
1/7 02:30	42.6	↑4.1
1/7 02:40	46.8	↑4.2
1/7 02:50	51.1	↑4.3
1/7 03:00	55.4	↑4.3
1/7 03:10	59.8	↑4.4	最大潮位差
1/7 03:20	64.2	↑4.4	最大潮位差
1/7 03:30	68.5	↑4.3
1/7 03:40	72.8	↑4.3
1/7 03:50	77.1	↑4.3
1/7 04:00	81.2	↑4.1
1/7 04:10	85.3	↑4.1
1/7 04:20	89.2	↑3.9
1/7 04:30	92.9	↑3.7
1/7 04:40	96.5	↑3.6
1/7 04:50	99.8	↑3.3
1/7 05:00	103.0	↑3.2
1/7 05:10	105.9	↑2.9
1/7 05:20	108.6	↑2.7
1/7 05:30	111.0	↑2.4
1/7 05:40	113.1	↑2.1
1/7 05:50	115.0	↑1.9
1/7 06:00	116.5	↑1.5
1/7 06:10	117.8	↑1.3
1/7 06:20	118.8	↑1.0
1/7 06:30	119.5	↑0.7
1/7 06:40	119.8	↑0.3	満潮
1/7 06:50	119.9	↑0.1
1/7 07:00	119.7	↓-0.2
1/7 07:10	119.3	↓-0.4
1/7 07:20	118.5	↓-0.8
1/7 07:30	117.5	↓-1.0
1/7 07:40	116.3	↓-1.2
1/7 07:50	114.9	↓-1.4
1/7 08:00	113.3	↓-1.6
1/7 08:10	111.5	↓-1.8
1/7 08:20	109.5	↓-2.0
1/7 08:30	107.4	↓-2.1
1/7 08:40	105.2	↓-2.2
1/7 08:50	102.9	↓-2.3
1/7 09:00	100.6	↓-2.3
1/7 09:10	98.2	↓-2.4
1/7 09:20	95.9	↓-2.3
1/7 09:30	93.5	↓-2.4
1/7 09:40	91.2	↓-2.3
1/7 09:50	88.9	↓-2.3
1/7 10:00	86.7	↓-2.2
1/7 10:10	84.7	↓-2.0
1/7 10:20	82.7	↓-2.0
1/7 10:30	80.9	↓-1.8
1/7 10:40	79.2	↓-1.7
1/7 10:50	77.7	↓-1.5
1/7 11:00	76.4	↓-1.3
1/7 11:10	75.3	↓-1.1
1/7 11:20	74.4	↓-0.9
1/7 11:30	73.6	↓-0.8
1/7 11:40	73.1	↓-0.5
1/7 11:50	72.8	↓-0.3
1/7 12:00	72.7	↓-0.1	干潮
1/7 12:10	72.8	↑0.1
1/7 12:20	73.1	↑0.3
1/7 12:30	73.6	↑0.5
1/7 12:40	74.3	↑0.7
1/7 12:50	75.2	↑0.9
1/7 13:00	76.3	↑1.1
1/7 13:10	77.6	↑1.3
1/7 13:20	79.0	↑1.4
1/7 13:30	80.5	↑1.5
1/7 13:40	82.2	↑1.7
1/7 13:50	84.0	↑1.8
1/7 14:00	86.0	↑2.0
1/7 14:10	88.0	↑2.0
1/7 14:20	90.1	↑2.1
1/7 14:30	92.2	↑2.1
1/7 14:40	94.4	↑2.2
1/7 14:50	96.6	↑2.2
1/7 15:00	98.8	↑2.2
1/7 15:10	101.0	↑2.2
1/7 15:20	103.1	↑2.1
1/7 15:30	105.2	↑2.1
1/7 15:40	107.3	↑2.1
1/7 15:50	109.2	↑1.9
1/7 16:00	111.0	↑1.8
1/7 16:10	112.8	↑1.8
1/7 16:20	114.3	↑1.5
1/7 16:30	115.7	↑1.4
1/7 16:40	116.9	↑1.2
1/7 16:50	118.0	↑1.1
1/7 17:00	118.8	↑0.8
1/7 17:10	119.3	↑0.5
1/7 17:20	119.7	↑0.4	満潮
1/7 17:30	119.8	↑0.1	満潮
1/7 17:40	119.6	↓-0.2
1/7 17:50	119.2	↓-0.4
1/7 18:00	118.5	↓-0.7
1/7 18:10	117.5	↓-1.0
1/7 18:20	116.2	↓-1.3
1/7 18:30	114.6	↓-1.6
1/7 18:40	112.8	↓-1.8
1/7 18:50	110.7	↓-2.1
1/7 19:00	108.4	↓-2.3
1/7 19:10	105.7	↓-2.7
1/7 19:20	102.9	↓-2.8
1/7 19:30	99.8	↓-3.1
1/7 19:40	96.5	↓-3.3
1/7 19:50	93.0	↓-3.5
1/7 20:00	89.3	↓-3.7
1/7 20:10	85.5	↓-3.8
1/7 20:20	81.6	↓-3.9
1/7 20:30	77.5	↓-4.1
1/7 20:40	73.4	↓-4.1
1/7 20:50	69.2	↓-4.2
1/7 21:00	65.0	↓-4.2
1/7 21:10	60.8	↓-4.2
1/7 21:20	56.6	↓-4.2
1/7 21:30	52.5	↓-4.1
1/7 21:40	48.4	↓-4.1
1/7 21:50	44.5	↓-3.9
1/7 22:00	40.7	↓-3.8
1/7 22:10	37.1	↓-3.6
1/7 22:20	33.6	↓-3.5
1/7 22:30	30.4	↓-3.2
1/7 22:40	27.4	↓-3.0
1/7 22:50	24.6	↓-2.8
1/7 23:00	22.1	↓-2.5
1/7 23:10	19.9	↓-2.2
1/7 23:20	17.9	↓-2.0
1/7 23:30	16.2	↓-1.7
1/7 23:40	14.9	↓-1.3
1/7 23:50	13.8	↓-1.1