20 (月)	05:41	00:08	19:40	12:48
	126cm	70cm	112cm	11cm
中潮 出 04:59 入 18:17 出 08:06 入 22:38 潮干狩り ◎ 10:42～14:55

大洗（茨城）2037年04月20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
4/20 00:00	69.4	↓-0.2	干潮
4/20 00:10	69.3	↓-0.1
4/20 00:20	69.5	↑0.2
4/20 00:30	69.9	↑0.4
4/20 00:40	70.5	↑0.6
4/20 00:50	71.4	↑0.9
4/20 01:00	72.4	↑1.0
4/20 01:10	73.7	↑1.3
4/20 01:20	75.2	↑1.5
4/20 01:30	76.8	↑1.6
4/20 01:40	78.7	↑1.9
4/20 01:50	80.7	↑2.0
4/20 02:00	82.8	↑2.1
4/20 02:10	85.1	↑2.3
4/20 02:20	87.5	↑2.4
4/20 02:30	90.1	↑2.6
4/20 02:40	92.6	↑2.5
4/20 02:50	95.3	↑2.7
4/20 03:00	98.0	↑2.7
4/20 03:10	100.7	↑2.7
4/20 03:20	103.3	↑2.6
4/20 03:30	106.0	↑2.7
4/20 03:40	108.5	↑2.5
4/20 03:50	111.0	↑2.5
4/20 04:00	113.3	↑2.3
4/20 04:10	115.5	↑2.2
4/20 04:20	117.6	↑2.1
4/20 04:30	119.4	↑1.8
4/20 04:40	121.1	↑1.7
4/20 04:50	122.5	↑1.4
4/20 05:00	123.7	↑1.2
4/20 05:10	124.7	↑1.0
4/20 05:20	125.4	↑0.7
4/20 05:30	125.8	↑0.4
4/20 05:40	125.9	↑0.1	満潮
4/20 05:50	125.8	↓-0.1
4/20 06:00	125.3	↓-0.5
4/20 06:10	124.6	↓-0.7
4/20 06:20	123.6	↓-1.0
4/20 06:30	122.3	↓-1.3
4/20 06:40	120.7	↓-1.6
4/20 06:50	118.9	↓-1.8
4/20 07:00	116.7	↓-2.2
4/20 07:10	114.3	↓-2.4
4/20 07:20	111.7	↓-2.6
4/20 07:30	108.8	↓-2.9
4/20 07:40	105.7	↓-3.1
4/20 07:50	102.3	↓-3.4
4/20 08:00	98.8	↓-3.5
4/20 08:10	95.1	↓-3.7
4/20 08:20	91.2	↓-3.9
4/20 08:30	87.2	↓-4.0
4/20 08:40	83.1	↓-4.1
4/20 08:50	78.9	↓-4.2
4/20 09:00	74.7	↓-4.2
4/20 09:10	70.3	↓-4.4	最大潮位差
4/20 09:20	66.0	↓-4.3
4/20 09:30	61.7	↓-4.3
4/20 09:40	57.4	↓-4.3
4/20 09:50	53.2	↓-4.2
4/20 10:00	49.0	↓-4.2
4/20 10:10	45.0	↓-4.0
4/20 10:20	41.1	↓-3.9
4/20 10:30	37.4	↓-3.7
4/20 10:40	33.8	↓-3.6
4/20 10:50	30.4	↓-3.4
4/20 11:00	27.3	↓-3.1
4/20 11:10	24.3	↓-3.0
4/20 11:20	21.6	↓-2.7
4/20 11:30	19.2	↓-2.4
4/20 11:40	17.0	↓-2.2
4/20 11:50	15.2	↓-1.8
4/20 12:00	13.6	↓-1.6
4/20 12:10	12.2	↓-1.4
4/20 12:20	11.2	↓-1.0
4/20 12:30	10.5	↓-0.7
4/20 12:40	10.1	↓-0.4	干潮
4/20 12:50	10.1	0
4/20 13:00	10.3	↑0.2
4/20 13:10	10.9	↑0.6
4/20 13:20	11.7	↑0.8
4/20 13:30	12.9	↑1.2
4/20 13:40	14.3	↑1.4
4/20 13:50	16.1	↑1.8
4/20 14:00	18.1	↑2.0
4/20 14:10	20.4	↑2.3
4/20 14:20	23.0	↑2.6
4/20 14:30	25.8	↑2.8
4/20 14:40	28.8	↑3.0
4/20 14:50	32.0	↑3.2
4/20 15:00	35.4	↑3.4
4/20 15:10	39.0	↑3.6
4/20 15:20	42.7	↑3.7
4/20 15:30	46.5	↑3.8
4/20 15:40	50.4	↑3.9
4/20 15:50	54.3	↑3.9
4/20 16:00	58.3	↑4.0
4/20 16:10	62.2	↑3.9
4/20 16:20	66.2	↑4.0
4/20 16:30	70.1	↑3.9
4/20 16:40	73.9	↑3.8
4/20 16:50	77.6	↑3.7
4/20 17:00	81.2	↑3.6
4/20 17:10	84.6	↑3.4
4/20 17:20	87.9	↑3.3
4/20 17:30	91.1	↑3.2
4/20 17:40	94.0	↑2.9
4/20 17:50	96.7	↑2.7
4/20 18:00	99.2	↑2.5
4/20 18:10	101.5	↑2.3
4/20 18:20	103.5	↑2.0
4/20 18:30	105.3	↑1.8
4/20 18:40	106.9	↑1.6
4/20 18:50	108.2	↑1.3
4/20 19:00	109.3	↑1.1
4/20 19:10	110.1	↑0.8
4/20 19:20	110.7	↑0.6
4/20 19:30	111.0	↑0.3	満潮
4/20 19:40	111.1	↑0.1	満潮
4/20 19:50	111.0	↓-0.1
4/20 20:00	110.6	↓-0.4
4/20 20:10	110.0	↓-0.6
4/20 20:20	109.3	↓-0.7
4/20 20:30	108.4	↓-0.9
4/20 20:40	107.2	↓-1.2
4/20 20:50	106.0	↓-1.2
4/20 21:00	104.6	↓-1.4
4/20 21:10	103.1	↓-1.5
4/20 21:20	101.5	↓-1.6
4/20 21:30	99.8	↓-1.7
4/20 21:40	98.1	↓-1.7
4/20 21:50	96.3	↓-1.8
4/20 22:00	94.5	↓-1.8
4/20 22:10	92.7	↓-1.8
4/20 22:20	91.0	↓-1.7
4/20 22:30	89.2	↓-1.8
4/20 22:40	87.6	↓-1.6
4/20 22:50	86.0	↓-1.6
4/20 23:00	84.5	↓-1.5
4/20 23:10	83.1	↓-1.4
4/20 23:20	81.9	↓-1.2
4/20 23:30	80.7	↓-1.2
4/20 23:40	79.7	↓-1.0
4/20 23:50	78.9	↓-0.8