20 (土)	05:09	12:14	19:20	-
	133cm	2cm	114cm	-
中潮 出 04:59 入 18:17 出 22:24 入 07:04 潮干狩り ◎ 09:53～14:37

大洗（茨城）2041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	71.9	↑0.4
4/20 00:10	72.4	↑0.5
4/20 00:20	73.3	↑0.9
4/20 00:30	74.3	↑1.0
4/20 00:40	75.6	↑1.3
4/20 00:50	77.2	↑1.6
4/20 01:00	78.9	↑1.7
4/20 01:10	80.9	↑2.0
4/20 01:20	83.0	↑2.1
4/20 01:30	85.3	↑2.3
4/20 01:40	87.8	↑2.5
4/20 01:50	90.5	↑2.7
4/20 02:00	93.2	↑2.7
4/20 02:10	96.1	↑2.9
4/20 02:20	99.0	↑2.9
4/20 02:30	101.9	↑2.9
4/20 02:40	104.9	↑3.0
4/20 02:50	107.9	↑3.0
4/20 03:00	110.8	↑2.9
4/20 03:10	113.6	↑2.8
4/20 03:20	116.4	↑2.8
4/20 03:30	119.0	↑2.6
4/20 03:40	121.4	↑2.4
4/20 03:50	123.7	↑2.3
4/20 04:00	125.8	↑2.1
4/20 04:10	127.6	↑1.8
4/20 04:20	129.2	↑1.6
4/20 04:30	130.5	↑1.3
4/20 04:40	131.5	↑1.0
4/20 04:50	132.2	↑0.7
4/20 05:00	132.6	↑0.4	満潮
4/20 05:10	132.7	↑0.1
4/20 05:20	132.5	↓-0.2
4/20 05:30	131.9	↓-0.6
4/20 05:40	131.0	↓-0.9
4/20 05:50	129.7	↓-1.3
4/20 06:00	128.1	↓-1.6
4/20 06:10	126.2	↓-1.9
4/20 06:20	124.0	↓-2.2
4/20 06:30	121.4	↓-2.6
4/20 06:40	118.6	↓-2.8
4/20 06:50	115.5	↓-3.1
4/20 07:00	112.1	↓-3.4
4/20 07:10	108.4	↓-3.7
4/20 07:20	104.5	↓-3.9
4/20 07:30	100.4	↓-4.1
4/20 07:40	96.1	↓-4.3
4/20 07:50	91.6	↓-4.5
4/20 08:00	87.0	↓-4.6
4/20 08:10	82.2	↓-4.8
4/20 08:20	77.4	↓-4.8
4/20 08:30	72.5	↓-4.9	最大潮位差
4/20 08:40	67.6	↓-4.9	最大潮位差
4/20 08:50	62.7	↓-4.9	最大潮位差
4/20 09:00	57.8	↓-4.9	最大潮位差
4/20 09:10	52.9	↓-4.9	最大潮位差
4/20 09:20	48.2	↓-4.7
4/20 09:30	43.5	↓-4.7
4/20 09:40	39.0	↓-4.5
4/20 09:50	34.7	↓-4.3
4/20 10:00	30.5	↓-4.2
4/20 10:10	26.6	↓-3.9
4/20 10:20	22.9	↓-3.7
4/20 10:30	19.5	↓-3.4
4/20 10:40	16.3	↓-3.2
4/20 10:50	13.4	↓-2.9
4/20 11:00	10.8	↓-2.6
4/20 11:10	8.5	↓-2.3
4/20 11:20	6.6	↓-1.9
4/20 11:30	5.0	↓-1.6
4/20 11:40	3.7	↓-1.3
4/20 11:50	2.7	↓-1.0
4/20 12:00	2.1	↓-0.6
4/20 12:10	1.9	↓-0.2	干潮
4/20 12:20	2.0	↑0.1
4/20 12:30	2.4	↑0.4
4/20 12:40	3.1	↑0.7
4/20 12:50	4.2	↑1.1
4/20 13:00	5.7	↑1.5
4/20 13:10	7.4	↑1.7
4/20 13:20	9.4	↑2.0
4/20 13:30	11.7	↑2.3
4/20 13:40	14.3	↑2.6
4/20 13:50	17.2	↑2.9
4/20 14:00	20.3	↑3.1
4/20 14:10	23.7	↑3.4
4/20 14:20	27.2	↑3.5
4/20 14:30	30.9	↑3.7
4/20 14:40	34.8	↑3.9
4/20 14:50	38.8	↑4.0
4/20 15:00	42.9	↑4.1
4/20 15:10	47.0	↑4.1
4/20 15:20	51.3	↑4.3
4/20 15:30	55.5	↑4.2
4/20 15:40	59.7	↑4.2
4/20 15:50	64.0	↑4.3
4/20 16:00	68.1	↑4.1
4/20 16:10	72.2	↑4.1
4/20 16:20	76.2	↑4.0
4/20 16:30	80.0	↑3.8
4/20 16:40	83.8	↑3.8
4/20 16:50	87.3	↑3.5
4/20 17:00	90.7	↑3.4
4/20 17:10	93.9	↑3.2
4/20 17:20	96.8	↑2.9
4/20 17:30	99.6	↑2.8
4/20 17:40	102.1	↑2.5
4/20 17:50	104.4	↑2.3
4/20 18:00	106.5	↑2.1
4/20 18:10	108.3	↑1.8
4/20 18:20	109.8	↑1.5
4/20 18:30	111.2	↑1.4
4/20 18:40	112.2	↑1.0
4/20 18:50	113.0	↑0.8
4/20 19:00	113.6	↑0.6
4/20 19:10	113.9	↑0.3	満潮
4/20 19:20	114.0	↑0.1	満潮
4/20 19:30	113.9	↓-0.1
4/20 19:40	113.5	↓-0.4
4/20 19:50	112.9	↓-0.6
4/20 20:00	112.1	↓-0.8
4/20 20:10	111.2	↓-0.9
4/20 20:20	110.1	↓-1.1
4/20 20:30	108.8	↓-1.3
4/20 20:40	107.4	↓-1.4
4/20 20:50	105.9	↓-1.5
4/20 21:00	104.2	↓-1.7
4/20 21:10	102.5	↓-1.7
4/20 21:20	100.8	↓-1.7
4/20 21:30	99.0	↓-1.8
4/20 21:40	97.2	↓-1.8
4/20 21:50	95.4	↓-1.8
4/20 22:00	93.6	↓-1.8
4/20 22:10	91.9	↓-1.7
4/20 22:20	90.2	↓-1.7
4/20 22:30	88.7	↓-1.5
4/20 22:40	87.2	↓-1.5
4/20 22:50	85.8	↓-1.4
4/20 23:00	84.6	↓-1.2
4/20 23:10	83.5	↓-1.1
4/20 23:20	82.5	↓-1.0
4/20 23:30	81.7	↓-0.8
4/20 23:40	81.1	↓-0.6
4/20 23:50	80.7	↓-0.4