20 (水)	06:01	00:36	20:24	13:14
	123cm	74cm	105cm	16cm
中潮 出 04:59 入 18:17 出 23:10 入 08:44 潮干狩り ◎ 11:14～15:15

大洗（茨城）2033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	75.1	↓-0.7
4/20 00:10	74.5	↓-0.6
4/20 00:20	74.2	↓-0.3
4/20 00:30	74.0	↓-0.2	干潮
4/20 00:40	74.0	0
4/20 00:50	74.1	↑0.1
4/20 01:00	74.5	↑0.4
4/20 01:10	75.1	↑0.6
4/20 01:20	75.9	↑0.8
4/20 01:30	76.8	↑0.9
4/20 01:40	77.9	↑1.1
4/20 01:50	79.2	↑1.3
4/20 02:00	80.7	↑1.5
4/20 02:10	82.4	↑1.7
4/20 02:20	84.2	↑1.8
4/20 02:30	86.1	↑1.9
4/20 02:40	88.2	↑2.1
4/20 02:50	90.4	↑2.2
4/20 03:00	92.6	↑2.2
4/20 03:10	94.9	↑2.3
4/20 03:20	97.3	↑2.4
4/20 03:30	99.7	↑2.4
4/20 03:40	102.1	↑2.4
4/20 03:50	104.5	↑2.4
4/20 04:00	106.8	↑2.3
4/20 04:10	109.1	↑2.3
4/20 04:20	111.2	↑2.1
4/20 04:30	113.2	↑2.0
4/20 04:40	115.1	↑1.9
4/20 04:50	116.8	↑1.7
4/20 05:00	118.4	↑1.6
4/20 05:10	119.7	↑1.3
4/20 05:20	120.8	↑1.1
4/20 05:30	121.7	↑0.9
4/20 05:40	122.4	↑0.7
4/20 05:50	122.8	↑0.4
4/20 06:00	122.9	↑0.1	満潮
4/20 06:10	122.8	↓-0.1
4/20 06:20	122.4	↓-0.4
4/20 06:30	121.7	↓-0.7
4/20 06:40	120.8	↓-0.9
4/20 06:50	119.5	↓-1.3
4/20 07:00	118.1	↓-1.4
4/20 07:10	116.3	↓-1.8
4/20 07:20	114.3	↓-2.0
4/20 07:30	112.1	↓-2.2
4/20 07:40	109.6	↓-2.5
4/20 07:50	106.9	↓-2.7
4/20 08:00	104.0	↓-2.9
4/20 08:10	100.8	↓-3.2
4/20 08:20	97.6	↓-3.2
4/20 08:30	94.1	↓-3.5
4/20 08:40	90.5	↓-3.6
4/20 08:50	86.8	↓-3.7
4/20 09:00	83.0	↓-3.8
4/20 09:10	79.1	↓-3.9
4/20 09:20	75.1	↓-4.0	最大潮位差
4/20 09:30	71.1	↓-4.0	最大潮位差
4/20 09:40	67.1	↓-4.0	最大潮位差
4/20 09:50	63.2	↓-3.9
4/20 10:00	59.2	↓-4.0	最大潮位差
4/20 10:10	55.4	↓-3.8
4/20 10:20	51.6	↓-3.8
4/20 10:30	47.9	↓-3.7
4/20 10:40	44.3	↓-3.6
4/20 10:50	40.9	↓-3.4
4/20 11:00	37.7	↓-3.2
4/20 11:10	34.6	↓-3.1
4/20 11:20	31.7	↓-2.9
4/20 11:30	29.0	↓-2.7
4/20 11:40	26.6	↓-2.4
4/20 11:50	24.4	↓-2.2
4/20 12:00	22.4	↓-2.0
4/20 12:10	20.6	↓-1.8
4/20 12:20	19.1	↓-1.5
4/20 12:30	17.8	↓-1.3
4/20 12:40	16.9	↓-0.9
4/20 12:50	16.1	↓-0.8
4/20 13:00	15.6	↓-0.5
4/20 13:10	15.4	↓-0.2	干潮
4/20 13:20	15.5	↑0.1
4/20 13:30	15.8	↑0.3
4/20 13:40	16.4	↑0.6
4/20 13:50	17.2	↑0.8
4/20 14:00	18.3	↑1.1
4/20 14:10	19.6	↑1.3
4/20 14:20	21.2	↑1.6
4/20 14:30	23.0	↑1.8
4/20 14:40	25.0	↑2.0
4/20 14:50	27.3	↑2.3
4/20 15:00	29.7	↑2.4
4/20 15:10	32.3	↑2.6
4/20 15:20	35.1	↑2.8
4/20 15:30	38.0	↑2.9
4/20 15:40	41.0	↑3.0
4/20 15:50	44.2	↑3.2
4/20 16:00	47.4	↑3.2
4/20 16:10	50.7	↑3.3
4/20 16:20	54.0	↑3.3
4/20 16:30	57.4	↑3.4
4/20 16:40	60.7	↑3.3
4/20 16:50	64.0	↑3.3
4/20 17:00	67.3	↑3.3
4/20 17:10	70.6	↑3.3
4/20 17:20	73.7	↑3.1
4/20 17:30	76.8	↑3.1
4/20 17:40	79.8	↑3.0
4/20 17:50	82.6	↑2.8
4/20 18:00	85.3	↑2.7
4/20 18:10	87.8	↑2.5
4/20 18:20	90.2	↑2.4
4/20 18:30	92.4	↑2.2
4/20 18:40	94.5	↑2.1
4/20 18:50	96.4	↑1.9
4/20 19:00	98.1	↑1.7
4/20 19:10	99.5	↑1.4
4/20 19:20	100.9	↑1.4
4/20 19:30	102.0	↑1.1
4/20 19:40	102.9	↑0.9
4/20 19:50	103.6	↑0.7
4/20 20:00	104.1	↑0.5
4/20 20:10	104.4	↑0.3
4/20 20:20	104.6	↑0.2	満潮
4/20 20:30	104.6	0
4/20 20:40	104.3	↓-0.3
4/20 20:50	104.0	↓-0.3
4/20 21:00	103.4	↓-0.6
4/20 21:10	102.8	↓-0.6
4/20 21:20	101.9	↓-0.9
4/20 21:30	101.0	↓-0.9
4/20 21:40	100.0	↓-1.0
4/20 21:50	98.8	↓-1.2
4/20 22:00	97.6	↓-1.2
4/20 22:10	96.4	↓-1.2
4/20 22:20	95.1	↓-1.3
4/20 22:30	93.7	↓-1.4
4/20 22:40	92.4	↓-1.3
4/20 22:50	91.0	↓-1.4
4/20 23:00	89.7	↓-1.3
4/20 23:10	88.4	↓-1.3
4/20 23:20	87.1	↓-1.3
4/20 23:30	85.9	↓-1.2
4/20 23:40	84.8	↓-1.1
4/20 23:50	83.7	↓-1.1