1 (月)	03:30	07:35	12:50	20:48
	104cm	89cm	118cm	5cm
中潮 出 06:40 入 17:05 出 04:09 入 14:10

日立（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	67.3	↑3.0
2/1 00:10	70.3	↑3.0
2/1 00:20	73.2	↑2.9
2/1 00:30	76.0	↑2.8
2/1 00:40	78.7	↑2.7
2/1 00:50	81.4	↑2.7
2/1 01:00	83.9	↑2.5
2/1 01:10	86.3	↑2.4
2/1 01:20	88.6	↑2.3
2/1 01:30	90.8	↑2.2
2/1 01:40	92.8	↑2.0
2/1 01:50	94.6	↑1.8
2/1 02:00	96.3	↑1.7
2/1 02:10	97.9	↑1.6
2/1 02:20	99.2	↑1.3
2/1 02:30	100.4	↑1.2
2/1 02:40	101.4	↑1.0
2/1 02:50	102.2	↑0.8
2/1 03:00	102.8	↑0.6
2/1 03:10	103.2	↑0.4
2/1 03:20	103.5	↑0.3	満潮
2/1 03:30	103.5	0	満潮
2/1 03:40	103.5	0
2/1 03:50	103.2	↓-0.3
2/1 04:00	102.8	↓-0.4
2/1 04:10	102.3	↓-0.5
2/1 04:20	101.7	↓-0.6
2/1 04:30	101.0	↓-0.7
2/1 04:40	100.2	↓-0.8
2/1 04:50	99.3	↓-0.9
2/1 05:00	98.4	↓-0.9
2/1 05:10	97.5	↓-0.9
2/1 05:20	96.6	↓-0.9
2/1 05:30	95.6	↓-1.0
2/1 05:40	94.7	↓-0.9
2/1 05:50	93.9	↓-0.8
2/1 06:00	93.0	↓-0.9
2/1 06:10	92.3	↓-0.7
2/1 06:20	91.6	↓-0.7
2/1 06:30	90.9	↓-0.7
2/1 06:40	90.4	↓-0.5
2/1 06:50	89.9	↓-0.5
2/1 07:00	89.5	↓-0.4
2/1 07:10	89.2	↓-0.3
2/1 07:20	89.0	↓-0.2
2/1 07:30	89.0	0	干潮
2/1 07:40	89.0	0
2/1 07:50	89.1	↑0.1
2/1 08:00	89.3	↑0.2
2/1 08:10	89.6	↑0.3
2/1 08:20	90.1	↑0.5
2/1 08:30	90.7	↑0.6
2/1 08:40	91.3	↑0.6
2/1 08:50	92.1	↑0.8
2/1 09:00	93.0	↑0.9
2/1 09:10	94.0	↑1.0
2/1 09:20	95.1	↑1.1
2/1 09:30	96.3	↑1.2
2/1 09:40	97.6	↑1.3
2/1 09:50	99.0	↑1.4
2/1 10:00	100.4	↑1.4
2/1 10:10	101.8	↑1.4
2/1 10:20	103.3	↑1.5
2/1 10:30	104.7	↑1.4
2/1 10:40	106.2	↑1.5
2/1 10:50	107.7	↑1.5
2/1 11:00	109.1	↑1.4
2/1 11:10	110.4	↑1.3
2/1 11:20	111.7	↑1.3
2/1 11:30	112.9	↑1.2
2/1 11:40	113.9	↑1.0
2/1 11:50	114.9	↑1.0
2/1 12:00	115.7	↑0.8
2/1 12:10	116.4	↑0.7
2/1 12:20	117.0	↑0.6
2/1 12:30	117.4	↑0.4
2/1 12:40	117.6	↑0.2	満潮
2/1 12:50	117.7	↑0.1	満潮
2/1 13:00	117.6	↓-0.1
2/1 13:10	117.3	↓-0.3
2/1 13:20	116.8	↓-0.5
2/1 13:30	116.2	↓-0.6
2/1 13:40	115.4	↓-0.8
2/1 13:50	114.4	↓-1.0
2/1 14:00	113.2	↓-1.2
2/1 14:10	111.8	↓-1.4
2/1 14:20	110.2	↓-1.6
2/1 14:30	108.4	↓-1.8
2/1 14:40	106.5	↓-1.9
2/1 14:50	104.3	↓-2.2
2/1 15:00	101.9	↓-2.4
2/1 15:10	99.3	↓-2.6
2/1 15:20	96.6	↓-2.7
2/1 15:30	93.6	↓-3.0
2/1 15:40	90.5	↓-3.1
2/1 15:50	87.2	↓-3.3
2/1 16:00	83.8	↓-3.4
2/1 16:10	80.2	↓-3.6
2/1 16:20	76.6	↓-3.6
2/1 16:30	72.8	↓-3.8
2/1 16:40	69.0	↓-3.8
2/1 16:50	65.1	↓-3.9
2/1 17:00	61.2	↓-3.9
2/1 17:10	57.2	↓-4.0	最大潮位差
2/1 17:20	53.3	↓-3.9
2/1 17:30	49.5	↓-3.8
2/1 17:40	45.7	↓-3.8
2/1 17:50	41.9	↓-3.8
2/1 18:00	38.3	↓-3.6
2/1 18:10	34.8	↓-3.5
2/1 18:20	31.4	↓-3.4
2/1 18:30	28.2	↓-3.2
2/1 18:40	25.1	↓-3.1
2/1 18:50	22.2	↓-2.9
2/1 19:00	19.5	↓-2.7
2/1 19:10	17.0	↓-2.5
2/1 19:20	14.7	↓-2.3
2/1 19:30	12.6	↓-2.1
2/1 19:40	10.7	↓-1.9
2/1 19:50	9.1	↓-1.6
2/1 20:00	7.7	↓-1.4
2/1 20:10	6.6	↓-1.1
2/1 20:20	5.7	↓-0.9
2/1 20:30	5.1	↓-0.6
2/1 20:40	4.8	↓-0.3	干潮
2/1 20:50	4.7	↓-0.1
2/1 21:00	4.9	↑0.2
2/1 21:10	5.5	↑0.6
2/1 21:20	6.3	↑0.8
2/1 21:30	7.4	↑1.1
2/1 21:40	8.7	↑1.3
2/1 21:50	10.4	↑1.7
2/1 22:00	12.3	↑1.9
2/1 22:10	14.5	↑2.2
2/1 22:20	16.9	↑2.4
2/1 22:30	19.5	↑2.6
2/1 22:40	22.4	↑2.9
2/1 22:50	25.4	↑3.0
2/1 23:00	28.6	↑3.2
2/1 23:10	31.9	↑3.3
2/1 23:20	35.4	↑3.5
2/1 23:30	38.9	↑3.5
2/1 23:40	42.6	↑3.7
2/1 23:50	46.3	↑3.7