1 (火)	07:05	00:37	19:01	13:17
	123cm	34cm	108cm	48cm
中潮 出 06:40 入 17:04 出 09:00 入 22:18

日立（茨城）2028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	34.9	↓-1.2
2/1 00:10	34.1	↓-0.8
2/1 00:20	33.5	↓-0.6
2/1 00:30	33.1	↓-0.4	干潮
2/1 00:40	33.1	0
2/1 00:50	33.4	↑0.3
2/1 01:00	33.9	↑0.5
2/1 01:10	34.7	↑0.8
2/1 01:20	35.8	↑1.1
2/1 01:30	37.1	↑1.3
2/1 01:40	38.7	↑1.6
2/1 01:50	40.6	↑1.9
2/1 02:00	42.7	↑2.1
2/1 02:10	45.1	↑2.4
2/1 02:20	47.7	↑2.6
2/1 02:30	50.5	↑2.8
2/1 02:40	53.5	↑3.0
2/1 02:50	56.6	↑3.1
2/1 03:00	59.9	↑3.3
2/1 03:10	63.4	↑3.5
2/1 03:20	66.9	↑3.5
2/1 03:30	70.5	↑3.6
2/1 03:40	74.1	↑3.6
2/1 03:50	77.8	↑3.7	最大潮位差
2/1 04:00	81.5	↑3.7	最大潮位差
2/1 04:10	85.1	↑3.6
2/1 04:20	88.7	↑3.6
2/1 04:30	92.2	↑3.5
2/1 04:40	95.6	↑3.4
2/1 04:50	98.9	↑3.3
2/1 05:00	102.0	↑3.1
2/1 05:10	104.9	↑2.9
2/1 05:20	107.6	↑2.7
2/1 05:30	110.2	↑2.6
2/1 05:40	112.5	↑2.3
2/1 05:50	114.6	↑2.1
2/1 06:00	116.4	↑1.8
2/1 06:10	118.0	↑1.6
2/1 06:20	119.4	↑1.4
2/1 06:30	120.4	↑1.0
2/1 06:40	121.2	↑0.8
2/1 06:50	121.8	↑0.6
2/1 07:00	122.0	↑0.2	満潮
2/1 07:10	122.0	0
2/1 07:20	121.7	↓-0.3
2/1 07:30	121.1	↓-0.6
2/1 07:40	120.3	↓-0.8
2/1 07:50	119.2	↓-1.1
2/1 08:00	117.9	↓-1.3
2/1 08:10	116.3	↓-1.6
2/1 08:20	114.4	↓-1.9
2/1 08:30	112.4	↓-2.0
2/1 08:40	110.1	↓-2.3
2/1 08:50	107.7	↓-2.4
2/1 09:00	105.0	↓-2.7
2/1 09:10	102.3	↓-2.7
2/1 09:20	99.4	↓-2.9
2/1 09:30	96.4	↓-3.0
2/1 09:40	93.3	↓-3.1
2/1 09:50	90.1	↓-3.2
2/1 10:00	86.9	↓-3.2
2/1 10:10	83.7	↓-3.2
2/1 10:20	80.6	↓-3.1
2/1 10:30	77.4	↓-3.2
2/1 10:40	74.4	↓-3.0
2/1 10:50	71.4	↓-3.0
2/1 11:00	68.5	↓-2.9
2/1 11:10	65.7	↓-2.8
2/1 11:20	63.1	↓-2.6
2/1 11:30	60.6	↓-2.5
2/1 11:40	58.4	↓-2.2
2/1 11:50	56.3	↓-2.1
2/1 12:00	54.4	↓-1.9
2/1 12:10	52.7	↓-1.7
2/1 12:20	51.2	↓-1.5
2/1 12:30	50.0	↓-1.2
2/1 12:40	49.0	↓-1.0
2/1 12:50	48.2	↓-0.8
2/1 13:00	47.7	↓-0.5
2/1 13:10	47.4	↓-0.3	干潮
2/1 13:20	47.4	0
2/1 13:30	47.6	↑0.2
2/1 13:40	48.1	↑0.5
2/1 13:50	48.8	↑0.7
2/1 14:00	49.8	↑1.0
2/1 14:10	50.9	↑1.1
2/1 14:20	52.4	↑1.5
2/1 14:30	54.0	↑1.6
2/1 14:40	55.8	↑1.8
2/1 14:50	57.8	↑2.0
2/1 15:00	60.0	↑2.2
2/1 15:10	62.4	↑2.4
2/1 15:20	64.8	↑2.4
2/1 15:30	67.4	↑2.6
2/1 15:40	70.1	↑2.7
2/1 15:50	72.8	↑2.7
2/1 16:00	75.6	↑2.8
2/1 16:10	78.4	↑2.8
2/1 16:20	81.2	↑2.8
2/1 16:30	83.9	↑2.7
2/1 16:40	86.6	↑2.7
2/1 16:50	89.2	↑2.6
2/1 17:00	91.7	↑2.5
2/1 17:10	94.1	↑2.4
2/1 17:20	96.3	↑2.2
2/1 17:30	98.3	↑2.0
2/1 17:40	100.2	↑1.9
2/1 17:50	101.9	↑1.7
2/1 18:00	103.4	↑1.5
2/1 18:10	104.7	↑1.3
2/1 18:20	105.7	↑1.0
2/1 18:30	106.6	↑0.9
2/1 18:40	107.2	↑0.6
2/1 18:50	107.5	↑0.3
2/1 19:00	107.7	↑0.2	満潮
2/1 19:10	107.6	↓-0.1
2/1 19:20	107.2	↓-0.4
2/1 19:30	106.6	↓-0.6
2/1 19:40	105.8	↓-0.8
2/1 19:50	104.8	↓-1.0
2/1 20:00	103.5	↓-1.3
2/1 20:10	102.1	↓-1.4
2/1 20:20	100.4	↓-1.7
2/1 20:30	98.6	↓-1.8
2/1 20:40	96.5	↓-2.1
2/1 20:50	94.4	↓-2.1
2/1 21:00	92.0	↓-2.4
2/1 21:10	89.6	↓-2.4
2/1 21:20	87.0	↓-2.6
2/1 21:30	84.4	↓-2.6
2/1 21:40	81.6	↓-2.8
2/1 21:50	78.9	↓-2.7
2/1 22:00	76.1	↓-2.8
2/1 22:10	73.4	↓-2.7
2/1 22:20	70.6	↓-2.8
2/1 22:30	67.9	↓-2.7
2/1 22:40	65.3	↓-2.6
2/1 22:50	62.8	↓-2.5
2/1 23:00	60.3	↓-2.5
2/1 23:10	58.1	↓-2.2
2/1 23:20	55.9	↓-2.2
2/1 23:30	53.9	↓-2.0
2/1 23:40	52.1	↓-1.8
2/1 23:50	50.5	↓-1.6