22 (日)	00:30	06:07	12:16	19:20
	99cm	64cm	118cm	34cm
若潮 出 06:46 入 16:28 出 02:11 入 13:38

那珂湊（茨城）2019年12月22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
12/22 00:00	97.6	↑0.5
12/22 00:10	98.0	↑0.4
12/22 00:20	98.2	↑0.2	満潮
12/22 00:30	98.3	↑0.1	満潮
12/22 00:40	98.2	↓-0.1
12/22 00:50	98.0	↓-0.2
12/22 01:00	97.6	↓-0.4
12/22 01:10	97.0	↓-0.6
12/22 01:20	96.3	↓-0.7
12/22 01:30	95.5	↓-0.8
12/22 01:40	94.6	↓-0.9
12/22 01:50	93.5	↓-1.1
12/22 02:00	92.3	↓-1.2
12/22 02:10	91.1	↓-1.2
12/22 02:20	89.8	↓-1.3
12/22 02:30	88.3	↓-1.5
12/22 02:40	86.9	↓-1.4
12/22 02:50	85.4	↓-1.5
12/22 03:00	83.8	↓-1.6
12/22 03:10	82.3	↓-1.5
12/22 03:20	80.7	↓-1.6
12/22 03:30	79.1	↓-1.6
12/22 03:40	77.6	↓-1.5
12/22 03:50	76.0	↓-1.6
12/22 04:00	74.6	↓-1.4
12/22 04:10	73.1	↓-1.5
12/22 04:20	71.8	↓-1.3
12/22 04:30	70.5	↓-1.3
12/22 04:40	69.3	↓-1.2
12/22 04:50	68.2	↓-1.1
12/22 05:00	67.2	↓-1.0
12/22 05:10	66.3	↓-0.9
12/22 05:20	65.5	↓-0.8
12/22 05:30	64.9	↓-0.6
12/22 05:40	64.5	↓-0.4
12/22 05:50	64.1	↓-0.4
12/22 06:00	64.0	↓-0.1	干潮
12/22 06:10	63.9	↓-0.1
12/22 06:20	64.1	↑0.2
12/22 06:30	64.4	↑0.3
12/22 06:40	64.9	↑0.5
12/22 06:50	65.5	↑0.6
12/22 07:00	66.4	↑0.9
12/22 07:10	67.3	↑0.9
12/22 07:20	68.5	↑1.2
12/22 07:30	69.8	↑1.3
12/22 07:40	71.2	↑1.4
12/22 07:50	72.8	↑1.6
12/22 08:00	74.5	↑1.7
12/22 08:10	76.3	↑1.8
12/22 08:20	78.3	↑2.0
12/22 08:30	80.3	↑2.0
12/22 08:40	82.4	↑2.1
12/22 08:50	84.6	↑2.2
12/22 09:00	86.8	↑2.2
12/22 09:10	89.1	↑2.3
12/22 09:20	91.4	↑2.3
12/22 09:30	93.7	↑2.3
12/22 09:40	96.0	↑2.3
12/22 09:50	98.2	↑2.2
12/22 10:00	100.4	↑2.2
12/22 10:10	102.6	↑2.2
12/22 10:20	104.6	↑2.0
12/22 10:30	106.6	↑2.0
12/22 10:40	108.4	↑1.8
12/22 10:50	110.1	↑1.7
12/22 11:00	111.6	↑1.5
12/22 11:10	113.0	↑1.4
12/22 11:20	114.2	↑1.2
12/22 11:30	115.2	↑1.0
12/22 11:40	116.1	↑0.9
12/22 11:50	116.7	↑0.6
12/22 12:00	117.1	↑0.4
12/22 12:10	117.4	↑0.3	満潮
12/22 12:20	117.3	↓-0.1
12/22 12:30	117.1	↓-0.2
12/22 12:40	116.7	↓-0.4
12/22 12:50	116.0	↓-0.7
12/22 13:00	115.1	↓-0.9
12/22 13:10	114.1	↓-1.0
12/22 13:20	112.8	↓-1.3
12/22 13:30	111.3	↓-1.5
12/22 13:40	109.6	↓-1.7
12/22 13:50	107.7	↓-1.9
12/22 14:00	105.6	↓-2.1
12/22 14:10	103.4	↓-2.2
12/22 14:20	101.1	↓-2.3
12/22 14:30	98.5	↓-2.6
12/22 14:40	95.9	↓-2.6
12/22 14:50	93.2	↓-2.7
12/22 15:00	90.3	↓-2.9
12/22 15:10	87.4	↓-2.9
12/22 15:20	84.4	↓-3.0
12/22 15:30	81.4	↓-3.0
12/22 15:40	78.3	↓-3.1	最大潮位差
12/22 15:50	75.2	↓-3.1	最大潮位差
12/22 16:00	72.1	↓-3.1	最大潮位差
12/22 16:10	69.0	↓-3.1	最大潮位差
12/22 16:20	66.0	↓-3.0
12/22 16:30	63.0	↓-3.0
12/22 16:40	60.0	↓-3.0
12/22 16:50	57.2	↓-2.8
12/22 17:00	54.5	↓-2.7
12/22 17:10	51.8	↓-2.7
12/22 17:20	49.3	↓-2.5
12/22 17:30	47.0	↓-2.3
12/22 17:40	44.8	↓-2.2
12/22 17:50	42.8	↓-2.0
12/22 18:00	40.9	↓-1.9
12/22 18:10	39.3	↓-1.6
12/22 18:20	37.8	↓-1.5
12/22 18:30	36.6	↓-1.2
12/22 18:40	35.6	↓-1.0
12/22 18:50	34.8	↓-0.8
12/22 19:00	34.2	↓-0.6
12/22 19:10	33.9	↓-0.3	干潮
12/22 19:20	33.8	↓-0.1	干潮
12/22 19:30	34.0	↑0.2
12/22 19:40	34.3	↑0.3
12/22 19:50	35.0	↑0.7
12/22 20:00	35.8	↑0.8
12/22 20:10	36.9	↑1.1
12/22 20:20	38.2	↑1.3
12/22 20:30	39.7	↑1.5
12/22 20:40	41.4	↑1.7
12/22 20:50	43.2	↑1.8
12/22 21:00	45.3	↑2.1
12/22 21:10	47.5	↑2.2
12/22 21:20	49.8	↑2.3
12/22 21:30	52.3	↑2.5
12/22 21:40	54.8	↑2.5
12/22 21:50	57.5	↑2.7
12/22 22:00	60.2	↑2.7
12/22 22:10	63.0	↑2.8
12/22 22:20	65.8	↑2.8
12/22 22:30	68.7	↑2.9
12/22 22:40	71.5	↑2.8
12/22 22:50	74.3	↑2.8
12/22 23:00	77.1	↑2.8
12/22 23:10	79.8	↑2.7
12/22 23:20	82.4	↑2.6
12/22 23:30	85.0	↑2.6
12/22 23:40	87.4	↑2.4
12/22 23:50	89.7	↑2.3