9 (水)	04:20	10:59	17:37	23:10
	131cm	4cm	126cm	55cm
中潮 出 05:14 入 18:07 出 19:58 入 05:47 潮干狩り ◎ 08:50～13:07

大洗（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	57.9	↑2.5
4/9 00:10	60.6	↑2.7
4/9 00:20	63.6	↑3.0
4/9 00:30	66.8	↑3.2
4/9 00:40	70.1	↑3.3
4/9 00:50	73.7	↑3.6
4/9 01:00	77.4	↑3.7
4/9 01:10	81.1	↑3.7
4/9 01:20	85.0	↑3.9
4/9 01:30	88.9	↑3.9
4/9 01:40	92.8	↑3.9
4/9 01:50	96.6	↑3.8
4/9 02:00	100.4	↑3.8
4/9 02:10	104.1	↑3.7
4/9 02:20	107.7	↑3.6
4/9 02:30	111.1	↑3.4
4/9 02:40	114.3	↑3.2
4/9 02:50	117.3	↑3.0
4/9 03:00	120.1	↑2.8
4/9 03:10	122.6	↑2.5
4/9 03:20	124.8	↑2.2
4/9 03:30	126.7	↑1.9
4/9 03:40	128.2	↑1.5
4/9 03:50	129.5	↑1.3
4/9 04:00	130.3	↑0.8
4/9 04:10	130.8	↑0.5	満潮
4/9 04:20	131.0	↑0.2	満潮
4/9 04:30	130.8	↓-0.2
4/9 04:40	130.2	↓-0.6
4/9 04:50	129.2	↓-1.0
4/9 05:00	127.9	↓-1.3
4/9 05:10	126.2	↓-1.7
4/9 05:20	124.1	↓-2.1
4/9 05:30	121.7	↓-2.4
4/9 05:40	118.9	↓-2.8
4/9 05:50	115.9	↓-3.0
4/9 06:00	112.5	↓-3.4
4/9 06:10	108.8	↓-3.7
4/9 06:20	104.9	↓-3.9
4/9 06:30	100.7	↓-4.2
4/9 06:40	96.3	↓-4.4
4/9 06:50	91.7	↓-4.6
4/9 07:00	87.0	↓-4.7
4/9 07:10	82.1	↓-4.9
4/9 07:20	77.1	↓-5.0
4/9 07:30	72.0	↓-5.1	最大潮位差
4/9 07:40	66.9	↓-5.1	最大潮位差
4/9 07:50	61.8	↓-5.1	最大潮位差
4/9 08:00	56.8	↓-5.0
4/9 08:10	51.8	↓-5.0
4/9 08:20	46.9	↓-4.9
4/9 08:30	42.1	↓-4.8
4/9 08:40	37.5	↓-4.6
4/9 08:50	33.1	↓-4.4
4/9 09:00	28.9	↓-4.2
4/9 09:10	24.9	↓-4.0
4/9 09:20	21.2	↓-3.7
4/9 09:30	17.8	↓-3.4
4/9 09:40	14.8	↓-3.0
4/9 09:50	12.0	↓-2.8
4/9 10:00	9.6	↓-2.4
4/9 10:10	7.6	↓-2.0
4/9 10:20	5.9	↓-1.7
4/9 10:30	4.6	↓-1.3
4/9 10:40	3.7	↓-0.9
4/9 10:50	3.2	↓-0.5	干潮
4/9 11:00	3.1	↓-0.1
4/9 11:10	3.4	↑0.3
4/9 11:20	4.1	↑0.7
4/9 11:30	5.2	↑1.1
4/9 11:40	6.6	↑1.4
4/9 11:50	8.5	↑1.9
4/9 12:00	10.7	↑2.2
4/9 12:10	13.3	↑2.6
4/9 12:20	16.2	↑2.9
4/9 12:30	19.4	↑3.2
4/9 12:40	22.9	↑3.5
4/9 12:50	26.7	↑3.8
4/9 13:00	30.7	↑4.0
4/9 13:10	34.9	↑4.2
4/9 13:20	39.3	↑4.4
4/9 13:30	43.9	↑4.6
4/9 13:40	48.6	↑4.7
4/9 13:50	53.4	↑4.8
4/9 14:00	58.3	↑4.9
4/9 14:10	63.2	↑4.9
4/9 14:20	68.1	↑4.9
4/9 14:30	72.9	↑4.8
4/9 14:40	77.7	↑4.8
4/9 14:50	82.4	↑4.7
4/9 15:00	86.9	↑4.5
4/9 15:10	91.3	↑4.4
4/9 15:20	95.5	↑4.2
4/9 15:30	99.5	↑4.0
4/9 15:40	103.3	↑3.8
4/9 15:50	106.8	↑3.5
4/9 16:00	110.0	↑3.2
4/9 16:10	113.0	↑3.0
4/9 16:20	115.7	↑2.7
4/9 16:30	118.0	↑2.3
4/9 16:40	120.1	↑2.1
4/9 16:50	121.8	↑1.7
4/9 17:00	123.2	↑1.4
4/9 17:10	124.2	↑1.0
4/9 17:20	124.9	↑0.7
4/9 17:30	125.3	↑0.4	満潮
4/9 17:40	125.3	0
4/9 17:50	125.0	↓-0.3
4/9 18:00	124.4	↓-0.6
4/9 18:10	123.4	↓-1.0
4/9 18:20	122.2	↓-1.2
4/9 18:30	120.7	↓-1.5
4/9 18:40	118.9	↓-1.8
4/9 18:50	116.8	↓-2.1
4/9 19:00	114.5	↓-2.3
4/9 19:10	112.0	↓-2.5
4/9 19:20	109.2	↓-2.8
4/9 19:30	106.4	↓-2.8
4/9 19:40	103.3	↓-3.1
4/9 19:50	100.2	↓-3.1
4/9 20:00	96.9	↓-3.3
4/9 20:10	93.6	↓-3.3
4/9 20:20	90.3	↓-3.3
4/9 20:30	87.0	↓-3.3
4/9 20:40	83.7	↓-3.3
4/9 20:50	80.5	↓-3.2
4/9 21:00	77.3	↓-3.2
4/9 21:10	74.3	↓-3.0
4/9 21:20	71.4	↓-2.9
4/9 21:30	68.6	↓-2.8
4/9 21:40	66.1	↓-2.5
4/9 21:50	63.8	↓-2.3
4/9 22:00	61.7	↓-2.1
4/9 22:10	59.8	↓-1.9
4/9 22:20	58.2	↓-1.6
4/9 22:30	56.9	↓-1.3
4/9 22:40	55.8	↓-1.1
4/9 22:50	55.1	↓-0.7
4/9 23:00	54.6	↓-0.5	干潮
4/9 23:10	54.5	↓-0.1	干潮
4/9 23:20	54.7	↑0.2
4/9 23:30	55.2	↑0.5
4/9 23:40	56.0	↑0.8
4/9 23:50	57.1	↑1.1