9 (木)	05:21	10:53	16:32	23:25
	149cm	77cm	154cm	14cm
中潮 出 05:40 入 17:11 出 18:16 入 07:53

日立（茨城）2025年10月9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
10/9 00:00	31.1	↑2.8
10/9 00:10	34.3	↑3.2
10/9 00:20	37.8	↑3.5
10/9 00:30	41.6	↑3.8
10/9 00:40	45.7	↑4.1
10/9 00:50	50.1	↑4.4
10/9 01:00	54.7	↑4.6
10/9 01:10	59.5	↑4.8
10/9 01:20	64.4	↑4.9
10/9 01:30	69.5	↑5.1
10/9 01:40	74.7	↑5.2
10/9 01:50	80.0	↑5.3
10/9 02:00	85.2	↑5.2
10/9 02:10	90.5	↑5.3
10/9 02:20	95.6	↑5.1
10/9 02:30	100.7	↑5.1
10/9 02:40	105.6	↑4.9
10/9 02:50	110.4	↑4.8
10/9 03:00	115.0	↑4.6
10/9 03:10	119.4	↑4.4
10/9 03:20	123.5	↑4.1
10/9 03:30	127.4	↑3.9
10/9 03:40	130.9	↑3.5
10/9 03:50	134.2	↑3.3
10/9 04:00	137.2	↑3.0
10/9 04:10	139.8	↑2.6
10/9 04:20	142.1	↑2.3
10/9 04:30	144.1	↑2.0
10/9 04:40	145.7	↑1.6
10/9 04:50	146.9	↑1.2
10/9 05:00	147.8	↑0.9
10/9 05:10	148.4	↑0.6
10/9 05:20	148.6	↑0.2	満潮
10/9 05:30	148.4	↓-0.2
10/9 05:40	147.9	↓-0.5
10/9 05:50	147.0	↓-0.9
10/9 06:00	145.9	↓-1.1
10/9 06:10	144.4	↓-1.5
10/9 06:20	142.6	↓-1.8
10/9 06:30	140.5	↓-2.1
10/9 06:40	138.1	↓-2.4
10/9 06:50	135.5	↓-2.6
10/9 07:00	132.7	↓-2.8
10/9 07:10	129.7	↓-3.0
10/9 07:20	126.6	↓-3.1
10/9 07:30	123.3	↓-3.3
10/9 07:40	119.9	↓-3.4
10/9 07:50	116.5	↓-3.4
10/9 08:00	113.0	↓-3.5
10/9 08:10	109.6	↓-3.4
10/9 08:20	106.2	↓-3.4
10/9 08:30	102.8	↓-3.4
10/9 08:40	99.6	↓-3.2
10/9 08:50	96.4	↓-3.2
10/9 09:00	93.5	↓-2.9
10/9 09:10	90.7	↓-2.8
10/9 09:20	88.1	↓-2.6
10/9 09:30	85.7	↓-2.4
10/9 09:40	83.6	↓-2.1
10/9 09:50	81.7	↓-1.9
10/9 10:00	80.1	↓-1.6
10/9 10:10	78.8	↓-1.3
10/9 10:20	77.7	↓-1.1
10/9 10:30	77.0	↓-0.7
10/9 10:40	76.5	↓-0.5
10/9 10:50	76.3	↓-0.2	干潮
10/9 11:00	76.4	↑0.1
10/9 11:10	76.8	↑0.4
10/9 11:20	77.5	↑0.7
10/9 11:30	78.5	↑1.0
10/9 11:40	79.7	↑1.2
10/9 11:50	81.3	↑1.6
10/9 12:00	83.1	↑1.8
10/9 12:10	85.2	↑2.1
10/9 12:20	87.5	↑2.3
10/9 12:30	90.1	↑2.6
10/9 12:40	92.9	↑2.8
10/9 12:50	95.9	↑3.0
10/9 13:00	99.1	↑3.2
10/9 13:10	102.4	↑3.3
10/9 13:20	105.8	↑3.4
10/9 13:30	109.3	↑3.5
10/9 13:40	112.9	↑3.6
10/9 13:50	116.5	↑3.6
10/9 14:00	120.1	↑3.6
10/9 14:10	123.7	↑3.6
10/9 14:20	127.2	↑3.5
10/9 14:30	130.6	↑3.4
10/9 14:40	133.8	↑3.2
10/9 14:50	136.9	↑3.1
10/9 15:00	139.8	↑2.9
10/9 15:10	142.4	↑2.6
10/9 15:20	144.9	↑2.5
10/9 15:30	147.0	↑2.1
10/9 15:40	148.9	↑1.9
10/9 15:50	150.4	↑1.5
10/9 16:00	151.7	↑1.3
10/9 16:10	152.6	↑0.9
10/9 16:20	153.1	↑0.5
10/9 16:30	153.4	↑0.3	満潮
10/9 16:40	153.2	↓-0.2
10/9 16:50	152.7	↓-0.5
10/9 17:00	151.9	↓-0.8
10/9 17:10	150.7	↓-1.2
10/9 17:20	149.1	↓-1.6
10/9 17:30	147.2	↓-1.9
10/9 17:40	144.9	↓-2.3
10/9 17:50	142.3	↓-2.6
10/9 18:00	139.4	↓-2.9
10/9 18:10	136.1	↓-3.3
10/9 18:20	132.5	↓-3.6
10/9 18:30	128.6	↓-3.9
10/9 18:40	124.4	↓-4.2
10/9 18:50	120.0	↓-4.4
10/9 19:00	115.3	↓-4.7
10/9 19:10	110.5	↓-4.8
10/9 19:20	105.4	↓-5.1
10/9 19:30	100.2	↓-5.2
10/9 19:40	94.9	↓-5.3
10/9 19:50	89.4	↓-5.5	最大潮位差
10/9 20:00	84.0	↓-5.4
10/9 20:10	78.5	↓-5.5	最大潮位差
10/9 20:20	73.1	↓-5.4
10/9 20:30	67.7	↓-5.4
10/9 20:40	62.4	↓-5.3
10/9 20:50	57.2	↓-5.2
10/9 21:00	52.3	↓-4.9
10/9 21:10	47.5	↓-4.8
10/9 21:20	42.9	↓-4.6
10/9 21:30	38.6	↓-4.3
10/9 21:40	34.6	↓-4.0
10/9 21:50	30.9	↓-3.7
10/9 22:00	27.5	↓-3.4
10/9 22:10	24.4	↓-3.1
10/9 22:20	21.7	↓-2.7
10/9 22:30	19.4	↓-2.3
10/9 22:40	17.4	↓-2.0
10/9 22:50	15.8	↓-1.6
10/9 23:00	14.6	↓-1.2
10/9 23:10	13.9	↓-0.7
10/9 23:20	13.5	↓-0.4	干潮
10/9 23:30	13.5	0
10/9 23:40	14.0	↑0.5
10/9 23:50	14.8	↑0.8