1 (月)	03:03	07:33	12:47	20:26
	103cm	84cm	115cm	5cm
中潮 出 06:40 入 17:05 出 04:08 入 14:10

那珂湊（茨城）2038年02月1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
2/1 00:00	74.8	↑2.9
2/1 00:10	77.6	↑2.8
2/1 00:20	80.3	↑2.7
2/1 00:30	82.9	↑2.6
2/1 00:40	85.3	↑2.4
2/1 00:50	87.6	↑2.3
2/1 01:00	89.7	↑2.1
2/1 01:10	91.7	↑2.0
2/1 01:20	93.5	↑1.8
2/1 01:30	95.2	↑1.7
2/1 01:40	96.6	↑1.4
2/1 01:50	97.9	↑1.3
2/1 02:00	99.0	↑1.1
2/1 02:10	100.0	↑1.0
2/1 02:20	100.7	↑0.7
2/1 02:30	101.3	↑0.6
2/1 02:40	101.7	↑0.4
2/1 02:50	102.0	↑0.3
2/1 03:00	102.1	↑0.1	満潮
2/1 03:10	102.1	0
2/1 03:20	101.9	↓-0.2
2/1 03:30	101.5	↓-0.4
2/1 03:40	101.1	↓-0.4
2/1 03:50	100.5	↓-0.6
2/1 04:00	99.8	↓-0.7
2/1 04:10	99.1	↓-0.7
2/1 04:20	98.2	↓-0.9
2/1 04:30	97.3	↓-0.9
2/1 04:40	96.3	↓-1.0
2/1 04:50	95.3	↓-1.0
2/1 05:00	94.2	↓-1.1
2/1 05:10	93.2	↓-1.0
2/1 05:20	92.1	↓-1.1
2/1 05:30	91.0	↓-1.1
2/1 05:40	89.9	↓-1.1
2/1 05:50	88.9	↓-1.0
2/1 06:00	88.0	↓-0.9
2/1 06:10	87.0	↓-1.0
2/1 06:20	86.2	↓-0.8
2/1 06:30	85.4	↓-0.8
2/1 06:40	84.8	↓-0.6
2/1 06:50	84.2	↓-0.6
2/1 07:00	83.7	↓-0.5
2/1 07:10	83.4	↓-0.3
2/1 07:20	83.2	↓-0.2
2/1 07:30	83.1	↓-0.1	干潮
2/1 07:40	83.1	0
2/1 07:50	83.3	↑0.2
2/1 08:00	83.6	↑0.3
2/1 08:10	84.1	↑0.5
2/1 08:20	84.6	↑0.5
2/1 08:30	85.4	↑0.8
2/1 08:40	86.2	↑0.8
2/1 08:50	87.2	↑1.0
2/1 09:00	88.2	↑1.0
2/1 09:10	89.4	↑1.2
2/1 09:20	90.7	↑1.3
2/1 09:30	92.0	↑1.3
2/1 09:40	93.5	↑1.5
2/1 09:50	95.0	↑1.5
2/1 10:00	96.5	↑1.5
2/1 10:10	98.1	↑1.6
2/1 10:20	99.6	↑1.5
2/1 10:30	101.2	↑1.6
2/1 10:40	102.8	↑1.6
2/1 10:50	104.3	↑1.5
2/1 11:00	105.8	↑1.5
2/1 11:10	107.2	↑1.4
2/1 11:20	108.6	↑1.4
2/1 11:30	109.9	↑1.3
2/1 11:40	111.0	↑1.1
2/1 11:50	112.0	↑1.0
2/1 12:00	112.9	↑0.9
2/1 12:10	113.6	↑0.7
2/1 12:20	114.2	↑0.6
2/1 12:30	114.6	↑0.4
2/1 12:40	114.8	↑0.2	満潮
2/1 12:50	114.9	↑0.1
2/1 13:00	114.7	↓-0.2
2/1 13:10	114.3	↓-0.4
2/1 13:20	113.7	↓-0.6
2/1 13:30	112.9	↓-0.8
2/1 13:40	111.9	↓-1.0
2/1 13:50	110.7	↓-1.2
2/1 14:00	109.2	↓-1.5
2/1 14:10	107.5	↓-1.7
2/1 14:20	105.6	↓-1.9
2/1 14:30	103.5	↓-2.1
2/1 14:40	101.2	↓-2.3
2/1 14:50	98.8	↓-2.4
2/1 15:00	96.1	↓-2.7
2/1 15:10	93.2	↓-2.9
2/1 15:20	90.2	↓-3.0
2/1 15:30	87.0	↓-3.2
2/1 15:40	83.7	↓-3.3
2/1 15:50	80.3	↓-3.4
2/1 16:00	76.7	↓-3.6
2/1 16:10	73.1	↓-3.6
2/1 16:20	69.3	↓-3.8
2/1 16:30	65.5	↓-3.8
2/1 16:40	61.7	↓-3.8
2/1 16:50	57.9	↓-3.8
2/1 17:00	54.0	↓-3.9	最大潮位差
2/1 17:10	50.1	↓-3.9	最大潮位差
2/1 17:20	46.3	↓-3.8
2/1 17:30	42.6	↓-3.7
2/1 17:40	38.9	↓-3.7
2/1 17:50	35.3	↓-3.6
2/1 18:00	31.8	↓-3.5
2/1 18:10	28.5	↓-3.3
2/1 18:20	25.3	↓-3.2
2/1 18:30	22.3	↓-3.0
2/1 18:40	19.4	↓-2.9
2/1 18:50	16.8	↓-2.6
2/1 19:00	14.4	↓-2.4
2/1 19:10	12.2	↓-2.2
2/1 19:20	10.3	↓-1.9
2/1 19:30	8.6	↓-1.7
2/1 19:40	7.2	↓-1.4
2/1 19:50	6.0	↓-1.2
2/1 20:00	5.2	↓-0.8
2/1 20:10	4.6	↓-0.6
2/1 20:20	4.3	↓-0.3	干潮
2/1 20:30	4.3	0
2/1 20:40	4.6	↑0.3
2/1 20:50	5.1	↑0.5
2/1 21:00	6.0	↑0.9
2/1 21:10	7.2	↑1.2
2/1 21:20	8.6	↑1.4
2/1 21:30	10.2	↑1.6
2/1 21:40	12.2	↑2.0
2/1 21:50	14.3	↑2.1
2/1 22:00	16.7	↑2.4
2/1 22:10	19.3	↑2.6
2/1 22:20	22.2	↑2.9
2/1 22:30	25.1	↑2.9
2/1 22:40	28.3	↑3.2
2/1 22:50	31.6	↑3.3
2/1 23:00	35.0	↑3.4
2/1 23:10	38.5	↑3.5
2/1 23:20	42.1	↑3.6
2/1 23:30	45.8	↑3.7
2/1 23:40	49.5	↑3.7
2/1 23:50	53.3	↑3.8