21 (火)	04:53	10:53	16:52	23:17
	151cm	55cm	151cm	30cm
大潮 出 05:25 入 17:37 出 18:44 入 07:13

日立（茨城）2032年09月21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
9/21 00:00	48.8	↑3.0
9/21 00:10	52.2	↑3.4
9/21 00:20	55.8	↑3.6
9/21 00:30	59.8	↑4.0
9/21 00:40	64.0	↑4.2
9/21 00:50	68.4	↑4.4
9/21 01:00	73.0	↑4.6
9/21 01:10	77.7	↑4.7
9/21 01:20	82.6	↑4.9
9/21 01:30	87.5	↑4.9
9/21 01:40	92.4	↑4.9
9/21 01:50	97.4	↑5.0
9/21 02:00	102.2	↑4.8
9/21 02:10	107.0	↑4.8
9/21 02:20	111.7	↑4.7
9/21 02:30	116.2	↑4.5
9/21 02:40	120.6	↑4.4
9/21 02:50	124.7	↑4.1
9/21 03:00	128.6	↑3.9
9/21 03:10	132.2	↑3.6
9/21 03:20	135.6	↑3.4
9/21 03:30	138.6	↑3.0
9/21 03:40	141.4	↑2.8
9/21 03:50	143.8	↑2.4
9/21 04:00	145.9	↑2.1
9/21 04:10	147.6	↑1.7
9/21 04:20	149.0	↑1.4
9/21 04:30	150.0	↑1.0
9/21 04:40	150.7	↑0.7
9/21 04:50	150.9	↑0.2	満潮
9/21 05:00	150.8	↓-0.1
9/21 05:10	150.4	↓-0.4
9/21 05:20	149.5	↓-0.9
9/21 05:30	148.3	↓-1.2
9/21 05:40	146.7	↓-1.6
9/21 05:50	144.8	↓-1.9
9/21 06:00	142.5	↓-2.3
9/21 06:10	139.9	↓-2.6
9/21 06:20	137.0	↓-2.9
9/21 06:30	133.9	↓-3.1
9/21 06:40	130.5	↓-3.4
9/21 06:50	126.8	↓-3.7
9/21 07:00	123.0	↓-3.8
9/21 07:10	119.0	↓-4.0
9/21 07:20	114.9	↓-4.1
9/21 07:30	110.7	↓-4.2
9/21 07:40	106.4	↓-4.3
9/21 07:50	102.2	↓-4.2
9/21 08:00	97.9	↓-4.3
9/21 08:10	93.8	↓-4.1
9/21 08:20	89.7	↓-4.1
9/21 08:30	85.7	↓-4.0
9/21 08:40	81.9	↓-3.8
9/21 08:50	78.2	↓-3.7
9/21 09:00	74.8	↓-3.4
9/21 09:10	71.6	↓-3.2
9/21 09:20	68.6	↓-3.0
9/21 09:30	65.9	↓-2.7
9/21 09:40	63.4	↓-2.5
9/21 09:50	61.3	↓-2.1
9/21 10:00	59.4	↓-1.9
9/21 10:10	57.9	↓-1.5
9/21 10:20	56.6	↓-1.3
9/21 10:30	55.7	↓-0.9
9/21 10:40	55.2	↓-0.5
9/21 10:50	54.9	↓-0.3	干潮
9/21 11:00	55.0	↑0.1
9/21 11:10	55.5	↑0.5
9/21 11:20	56.3	↑0.8
9/21 11:30	57.4	↑1.1
9/21 11:40	58.9	↑1.5
9/21 11:50	60.8	↑1.9
9/21 12:00	62.9	↑2.1
9/21 12:10	65.3	↑2.4
9/21 12:20	68.1	↑2.8
9/21 12:30	71.1	↑3.0
9/21 12:40	74.4	↑3.3
9/21 12:50	77.9	↑3.5
9/21 13:00	81.6	↑3.7
9/21 13:10	85.5	↑3.9
9/21 13:20	89.6	↑4.1
9/21 13:30	93.7	↑4.1
9/21 13:40	97.9	↑4.2
9/21 13:50	102.1	↑4.2
9/21 14:00	106.4	↑4.3
9/21 14:10	110.6	↑4.2
9/21 14:20	114.7	↑4.1
9/21 14:30	118.7	↑4.0
9/21 14:40	122.6	↑3.9
9/21 14:50	126.3	↑3.7
9/21 15:00	129.9	↑3.6
9/21 15:10	133.2	↑3.3
9/21 15:20	136.2	↑3.0
9/21 15:30	139.1	↑2.9
9/21 15:40	141.6	↑2.5
9/21 15:50	143.8	↑2.2
9/21 16:00	145.7	↑1.9
9/21 16:10	147.3	↑1.6
9/21 16:20	148.6	↑1.3
9/21 16:30	149.5	↑0.9
9/21 16:40	150.1	↑0.6
9/21 16:50	150.3	↑0.2	満潮
9/21 17:00	150.1	↓-0.2
9/21 17:10	149.6	↓-0.5
9/21 17:20	148.7	↓-0.9
9/21 17:30	147.4	↓-1.3
9/21 17:40	145.8	↓-1.6
9/21 17:50	143.7	↓-2.1
9/21 18:00	141.4	↓-2.3
9/21 18:10	138.6	↓-2.8
9/21 18:20	135.5	↓-3.1
9/21 18:30	132.1	↓-3.4
9/21 18:40	128.4	↓-3.7
9/21 18:50	124.5	↓-3.9
9/21 19:00	120.2	↓-4.3
9/21 19:10	115.8	↓-4.4
9/21 19:20	111.2	↓-4.6
9/21 19:30	106.4	↓-4.8
9/21 19:40	101.4	↓-5.0
9/21 19:50	96.4	↓-5.0
9/21 20:00	91.4	↓-5.0
9/21 20:10	86.4	↓-5.0
9/21 20:20	81.3	↓-5.1	最大潮位差
9/21 20:30	76.4	↓-4.9
9/21 20:40	71.5	↓-4.9
9/21 20:50	66.8	↓-4.7
9/21 21:00	62.3	↓-4.5
9/21 21:10	58.0	↓-4.3
9/21 21:20	53.8	↓-4.2
9/21 21:30	50.0	↓-3.8
9/21 21:40	46.4	↓-3.6
9/21 21:50	43.1	↓-3.3
9/21 22:00	40.1	↓-3.0
9/21 22:10	37.5	↓-2.6
9/21 22:20	35.2	↓-2.3
9/21 22:30	33.2	↓-2.0
9/21 22:40	31.6	↓-1.6
9/21 22:50	30.4	↓-1.2
9/21 23:00	29.6	↓-0.8
9/21 23:10	29.2	↓-0.4	干潮
9/21 23:20	29.2	0
9/21 23:30	29.5	↑0.3
9/21 23:40	30.3	↑0.8
9/21 23:50	31.5	↑1.2