04 (月)	04:28	10:09	16:03	22:31
	115cm	39cm	124cm	15cm
大潮 出 06:05 入 17:36 出 05:38 入 17:41

日立（茨城）2030年03月04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
3/4 00:00	33.7	↑3.6
3/4 00:10	37.4	↑3.7
3/4 00:20	41.3	↑3.9
3/4 00:30	45.3	↑4.0
3/4 00:40	49.5	↑4.2
3/4 00:50	53.7	↑4.2
3/4 01:00	57.9	↑4.2
3/4 01:10	62.1	↑4.2
3/4 01:20	66.4	↑4.3
3/4 01:30	70.5	↑4.1
3/4 01:40	74.7	↑4.2
3/4 01:50	78.7	↑4.0
3/4 02:00	82.6	↑3.9
3/4 02:10	86.4	↑3.8
3/4 02:20	90.0	↑3.6
3/4 02:30	93.4	↑3.4
3/4 02:40	96.7	↑3.3
3/4 02:50	99.7	↑3.0
3/4 03:00	102.5	↑2.8
3/4 03:10	105.1	↑2.6
3/4 03:20	107.4	↑2.3
3/4 03:30	109.4	↑2.0
3/4 03:40	111.1	↑1.7
3/4 03:50	112.5	↑1.4
3/4 04:00	113.6	↑1.1
3/4 04:10	114.3	↑0.7
3/4 04:20	114.7	↑0.4	満潮
3/4 04:30	114.8	↑0.1
3/4 04:40	114.5	↓-0.3
3/4 04:50	113.9	↓-0.6
3/4 05:00	113.0	↓-0.9
3/4 05:10	111.7	↓-1.3
3/4 05:20	110.1	↓-1.6
3/4 05:30	108.2	↓-1.9
3/4 05:40	106.0	↓-2.2
3/4 05:50	103.5	↓-2.5
3/4 06:00	100.8	↓-2.7
3/4 06:10	97.9	↓-2.9
3/4 06:20	94.9	↓-3.0
3/4 06:30	91.6	↓-3.3
3/4 06:40	88.3	↓-3.3
3/4 06:50	84.9	↓-3.4
3/4 07:00	81.4	↓-3.5
3/4 07:10	77.9	↓-3.5
3/4 07:20	74.4	↓-3.5
3/4 07:30	70.9	↓-3.5
3/4 07:40	67.5	↓-3.4
3/4 07:50	64.2	↓-3.3
3/4 08:00	60.9	↓-3.3
3/4 08:10	57.9	↓-3.0
3/4 08:20	55.0	↓-2.9
3/4 08:30	52.2	↓-2.8
3/4 08:40	49.7	↓-2.5
3/4 08:50	47.3	↓-2.4
3/4 09:00	45.2	↓-2.1
3/4 09:10	43.4	↓-1.8
3/4 09:20	41.8	↓-1.6
3/4 09:30	40.5	↓-1.3
3/4 09:40	39.4	↓-1.1
3/4 09:50	38.7	↓-0.7
3/4 10:00	38.3	↓-0.4	干潮
3/4 10:10	38.2	↓-0.1
3/4 10:20	38.4	↑0.2
3/4 10:30	39.0	↑0.6
3/4 10:40	39.8	↑0.8
3/4 10:50	41.0	↑1.2
3/4 11:00	42.6	↑1.6
3/4 11:10	44.4	↑1.8
3/4 11:20	46.5	↑2.1
3/4 11:30	49.0	↑2.5
3/4 11:40	51.6	↑2.6
3/4 11:50	54.6	↑3.0
3/4 12:00	57.7	↑3.1
3/4 12:10	61.0	↑3.3
3/4 12:20	64.5	↑3.5
3/4 12:30	68.1	↑3.6
3/4 12:40	71.8	↑3.7
3/4 12:50	75.6	↑3.8
3/4 13:00	79.4	↑3.8
3/4 13:10	83.2	↑3.8
3/4 13:20	87.0	↑3.8
3/4 13:30	90.7	↑3.7
3/4 13:40	94.3	↑3.6
3/4 13:50	97.8	↑3.5
3/4 14:00	101.1	↑3.3
3/4 14:10	104.3	↑3.2
3/4 14:20	107.3	↑3.0
3/4 14:30	110.1	↑2.8
3/4 14:40	112.7	↑2.6
3/4 14:50	115.0	↑2.3
3/4 15:00	117.0	↑2.0
3/4 15:10	118.8	↑1.8
3/4 15:20	120.3	↑1.5
3/4 15:30	121.5	↑1.2
3/4 15:40	122.4	↑0.9
3/4 15:50	123.0	↑0.6
3/4 16:00	123.2	↑0.2	満潮
3/4 16:10	123.1	↓-0.1
3/4 16:20	122.7	↓-0.4
3/4 16:30	121.9	↓-0.8
3/4 16:40	120.8	↓-1.1
3/4 16:50	119.3	↓-1.5
3/4 17:00	117.5	↓-1.8
3/4 17:10	115.4	↓-2.1
3/4 17:20	112.9	↓-2.5
3/4 17:30	110.2	↓-2.7
3/4 17:40	107.1	↓-3.1
3/4 17:50	103.8	↓-3.3
3/4 18:00	100.2	↓-3.6
3/4 18:10	96.4	↓-3.8
3/4 18:20	92.5	↓-3.9
3/4 18:30	88.3	↓-4.2
3/4 18:40	84.1	↓-4.2
3/4 18:50	79.7	↓-4.4
3/4 19:00	75.3	↓-4.4
3/4 19:10	70.8	↓-4.5	最大潮位差
3/4 19:20	66.4	↓-4.4
3/4 19:30	62.0	↓-4.4
3/4 19:40	57.6	↓-4.4
3/4 19:50	53.4	↓-4.2
3/4 20:00	49.3	↓-4.1
3/4 20:10	45.3	↓-4.0
3/4 20:20	41.5	↓-3.8
3/4 20:30	37.8	↓-3.7
3/4 20:40	34.4	↓-3.4
3/4 20:50	31.2	↓-3.2
3/4 21:00	28.3	↓-2.9
3/4 21:10	25.6	↓-2.7
3/4 21:20	23.1	↓-2.5
3/4 21:30	21.0	↓-2.1
3/4 21:40	19.2	↓-1.8
3/4 21:50	17.7	↓-1.5
3/4 22:00	16.5	↓-1.2
3/4 22:10	15.6	↓-0.9
3/4 22:20	15.1	↓-0.5
3/4 22:30	14.9	↓-0.2	干潮
3/4 22:40	15.1	↑0.2
3/4 22:50	15.6	↑0.5
3/4 23:00	16.5	↑0.9
3/4 23:10	17.8	↑1.3
3/4 23:20	19.4	↑1.6
3/4 23:30	21.3	↑1.9
3/4 23:40	23.6	↑2.3
3/4 23:50	26.2	↑2.6