9 (水)	04:21	11:01	17:40	23:09
	128cm	3cm	122cm	54cm
中潮 出 05:14 入 18:07 出 19:58 入 05:47 潮干狩り ◎ 08:48～13:13

日立（茨城）2031年04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
4/9 00:00	56.2	↑2.3
4/9 00:10	58.9	↑2.7
4/9 00:20	61.7	↑2.8
4/9 00:30	64.8	↑3.1
4/9 00:40	68.1	↑3.3
4/9 00:50	71.5	↑3.4
4/9 01:00	75.1	↑3.6
4/9 01:10	78.8	↑3.7
4/9 01:20	82.5	↑3.7
4/9 01:30	86.4	↑3.9
4/9 01:40	90.2	↑3.8
4/9 01:50	94.0	↑3.8
4/9 02:00	97.7	↑3.7
4/9 02:10	101.3	↑3.6
4/9 02:20	104.8	↑3.5
4/9 02:30	108.1	↑3.3
4/9 02:40	111.3	↑3.2
4/9 02:50	114.2	↑2.9
4/9 03:00	116.9	↑2.7
4/9 03:10	119.3	↑2.4
4/9 03:20	121.4	↑2.1
4/9 03:30	123.2	↑1.8
4/9 03:40	124.8	↑1.6
4/9 03:50	126.0	↑1.2
4/9 04:00	126.8	↑0.8
4/9 04:10	127.3	↑0.5
4/9 04:20	127.5	↑0.2	満潮
4/9 04:30	127.3	↓-0.2
4/9 04:40	126.8	↓-0.5
4/9 04:50	125.9	↓-0.9
4/9 05:00	124.7	↓-1.2
4/9 05:10	123.1	↓-1.6
4/9 05:20	121.2	↓-1.9
4/9 05:30	118.9	↓-2.3
4/9 05:40	116.3	↓-2.6
4/9 05:50	113.4	↓-2.9
4/9 06:00	110.1	↓-3.3
4/9 06:10	106.6	↓-3.5
4/9 06:20	102.8	↓-3.8
4/9 06:30	98.8	↓-4.0
4/9 06:40	94.5	↓-4.3
4/9 06:50	90.0	↓-4.5
4/9 07:00	85.3	↓-4.7
4/9 07:10	80.5	↓-4.8
4/9 07:20	75.6	↓-4.9
4/9 07:30	70.6	↓-5.0
4/9 07:40	65.5	↓-5.1	最大潮位差
4/9 07:50	60.5	↓-5.0
4/9 08:00	55.5	↓-5.0
4/9 08:10	50.5	↓-5.0
4/9 08:20	45.7	↓-4.8
4/9 08:30	40.9	↓-4.8
4/9 08:40	36.4	↓-4.5
4/9 08:50	32.0	↓-4.4
4/9 09:00	27.9	↓-4.1
4/9 09:10	24.0	↓-3.9
4/9 09:20	20.4	↓-3.6
4/9 09:30	17.1	↓-3.3
4/9 09:40	14.1	↓-3.0
4/9 09:50	11.4	↓-2.7
4/9 10:00	9.0	↓-2.4
4/9 10:10	7.0	↓-2.0
4/9 10:20	5.4	↓-1.6
4/9 10:30	4.1	↓-1.3
4/9 10:40	3.1	↓-1.0
4/9 10:50	2.6	↓-0.5
4/9 11:00	2.4	↓-0.2	干潮
4/9 11:10	2.6	↑0.2
4/9 11:20	3.1	↑0.5
4/9 11:30	4.0	↑0.9
4/9 11:40	5.3	↑1.3
4/9 11:50	7.0	↑1.7
4/9 12:00	9.0	↑2.0
4/9 12:10	11.4	↑2.4
4/9 12:20	14.1	↑2.7
4/9 12:30	17.1	↑3.0
4/9 12:40	20.4	↑3.3
4/9 12:50	24.0	↑3.6
4/9 13:00	27.9	↑3.9
4/9 13:10	32.0	↑4.1
4/9 13:20	36.3	↑4.3
4/9 13:30	40.7	↑4.4
4/9 13:40	45.3	↑4.6
4/9 13:50	50.1	↑4.8
4/9 14:00	54.8	↑4.7
4/9 14:10	59.7	↑4.9
4/9 14:20	64.5	↑4.8
4/9 14:30	69.2	↑4.7
4/9 14:40	74.0	↑4.8
4/9 14:50	78.6	↑4.6
4/9 15:00	83.1	↑4.5
4/9 15:10	87.4	↑4.3
4/9 15:20	91.5	↑4.1
4/9 15:30	95.5	↑4.0
4/9 15:40	99.2	↑3.7
4/9 15:50	102.7	↑3.5
4/9 16:00	105.9	↑3.2
4/9 16:10	108.9	↑3.0
4/9 16:20	111.5	↑2.6
4/9 16:30	113.9	↑2.4
4/9 16:40	116.0	↑2.1
4/9 16:50	117.7	↑1.7
4/9 17:00	119.2	↑1.5
4/9 17:10	120.3	↑1.1
4/9 17:20	121.1	↑0.8
4/9 17:30	121.5	↑0.4	満潮
4/9 17:40	121.7	↑0.2	満潮
4/9 17:50	121.5	↓-0.2
4/9 18:00	121.0	↓-0.5
4/9 18:10	120.2	↓-0.8
4/9 18:20	119.0	↓-1.2
4/9 18:30	117.6	↓-1.4
4/9 18:40	115.9	↓-1.7
4/9 18:50	113.9	↓-2.0
4/9 19:00	111.6	↓-2.3
4/9 19:10	109.2	↓-2.4
4/9 19:20	106.5	↓-2.7
4/9 19:30	103.6	↓-2.9
4/9 19:40	100.6	↓-3.0
4/9 19:50	97.5	↓-3.1
4/9 20:00	94.2	↓-3.3
4/9 20:10	90.9	↓-3.3
4/9 20:20	87.6	↓-3.3
4/9 20:30	84.3	↓-3.3
4/9 20:40	81.1	↓-3.2
4/9 20:50	77.9	↓-3.2
4/9 21:00	74.8	↓-3.1
4/9 21:10	71.8	↓-3.0
4/9 21:20	69.0	↓-2.8
4/9 21:30	66.4	↓-2.6
4/9 21:40	64.0	↓-2.4
4/9 21:50	61.7	↓-2.3
4/9 22:00	59.8	↓-1.9
4/9 22:10	58.0	↓-1.8
4/9 22:20	56.5	↓-1.5
4/9 22:30	55.3	↓-1.2
4/9 22:40	54.3	↓-1.0
4/9 22:50	53.7	↓-0.6
4/9 23:00	53.3	↓-0.4	干潮
4/9 23:10	53.2	↓-0.1
4/9 23:20	53.4	↑0.2
4/9 23:30	53.9	↑0.5
4/9 23:40	54.7	↑0.8
4/9 23:50	55.8	↑1.1