20 (月)	05:08	10:10	15:35	22:41
	121cm	69cm	134cm	-13cm
大潮 出 06:21 入 17:24 出 06:33 入 17:15

大洗（茨城）2023年02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
2/20 00:00	10.7	↑3.9
2/20 00:10	14.9	↑4.2
2/20 00:20	19.3	↑4.4
2/20 00:30	23.9	↑4.6
2/20 00:40	28.7	↑4.8
2/20 00:50	33.5	↑4.8
2/20 01:00	38.5	↑5.0
2/20 01:10	43.5	↑5.0
2/20 01:20	48.6	↑5.1
2/20 01:30	53.6	↑5.0
2/20 01:40	58.7	↑5.1
2/20 01:50	63.6	↑4.9
2/20 02:00	68.6	↑5.0
2/20 02:10	73.4	↑4.8
2/20 02:20	78.0	↑4.6
2/20 02:30	82.6	↑4.6
2/20 02:40	86.9	↑4.3
2/20 02:50	91.1	↑4.2
2/20 03:00	95.0	↑3.9
2/20 03:10	98.7	↑3.7
2/20 03:20	102.2	↑3.5
2/20 03:30	105.4	↑3.2
2/20 03:40	108.3	↑2.9
2/20 03:50	111.0	↑2.7
2/20 04:00	113.3	↑2.3
2/20 04:10	115.3	↑2.0
2/20 04:20	117.0	↑1.7
2/20 04:30	118.3	↑1.3
2/20 04:40	119.4	↑1.1
2/20 04:50	120.1	↑0.7
2/20 05:00	120.5	↑0.4	満潮
2/20 05:10	120.5	0
2/20 05:20	120.3	↓-0.2
2/20 05:30	119.7	↓-0.6
2/20 05:40	118.9	↓-0.8
2/20 05:50	117.7	↓-1.2
2/20 06:00	116.3	↓-1.4
2/20 06:10	114.7	↓-1.6
2/20 06:20	112.8	↓-1.9
2/20 06:30	110.8	↓-2.0
2/20 06:40	108.5	↓-2.3
2/20 06:50	106.2	↓-2.3
2/20 07:00	103.7	↓-2.5
2/20 07:10	101.1	↓-2.6
2/20 07:20	98.4	↓-2.7
2/20 07:30	95.7	↓-2.7
2/20 07:40	93.0	↓-2.7
2/20 07:50	90.3	↓-2.7
2/20 08:00	87.7	↓-2.6
2/20 08:10	85.1	↓-2.6
2/20 08:20	82.7	↓-2.4
2/20 08:30	80.3	↓-2.4
2/20 08:40	78.2	↓-2.1
2/20 08:50	76.1	↓-2.1
2/20 09:00	74.3	↓-1.8
2/20 09:10	72.7	↓-1.6
2/20 09:20	71.3	↓-1.4
2/20 09:30	70.1	↓-1.2
2/20 09:40	69.2	↓-0.9
2/20 09:50	68.5	↓-0.7
2/20 10:00	68.2	↓-0.3	干潮
2/20 10:10	68.1	↓-0.1	干潮
2/20 10:20	68.2	↑0.1
2/20 10:30	68.7	↑0.5
2/20 10:40	69.4	↑0.7
2/20 10:50	70.4	↑1.0
2/20 11:00	71.7	↑1.3
2/20 11:10	73.2	↑1.5
2/20 11:20	75.0	↑1.8
2/20 11:30	77.0	↑2.0
2/20 11:40	79.3	↑2.3
2/20 11:50	81.7	↑2.4
2/20 12:00	84.3	↑2.6
2/20 12:10	87.1	↑2.8
2/20 12:20	90.0	↑2.9
2/20 12:30	93.0	↑3.0
2/20 12:40	96.1	↑3.1
2/20 12:50	99.3	↑3.2
2/20 13:00	102.4	↑3.1
2/20 13:10	105.5	↑3.1
2/20 13:20	108.6	↑3.1
2/20 13:30	111.6	↑3.0
2/20 13:40	114.6	↑3.0
2/20 13:50	117.4	↑2.8
2/20 14:00	120.0	↑2.6
2/20 14:10	122.5	↑2.5
2/20 14:20	124.7	↑2.2
2/20 14:30	126.7	↑2.0
2/20 14:40	128.5	↑1.8
2/20 14:50	130.0	↑1.5
2/20 15:00	131.3	↑1.3
2/20 15:10	132.2	↑0.9
2/20 15:20	132.8	↑0.6
2/20 15:30	133.1	↑0.3	満潮
2/20 15:40	133.1	0
2/20 15:50	132.7	↓-0.4
2/20 16:00	132.0	↓-0.7
2/20 16:10	130.9	↓-1.1
2/20 16:20	129.5	↓-1.4
2/20 16:30	127.8	↓-1.7
2/20 16:40	125.6	↓-2.2
2/20 16:50	123.2	↓-2.4
2/20 17:00	120.4	↓-2.8
2/20 17:10	117.3	↓-3.1
2/20 17:20	113.8	↓-3.5
2/20 17:30	110.1	↓-3.7
2/20 17:40	106.1	↓-4.0
2/20 17:50	101.8	↓-4.3
2/20 18:00	97.3	↓-4.5
2/20 18:10	92.5	↓-4.8
2/20 18:20	87.6	↓-4.9
2/20 18:30	82.4	↓-5.2
2/20 18:40	77.2	↓-5.2
2/20 18:50	71.8	↓-5.4
2/20 19:00	66.4	↓-5.4
2/20 19:10	60.9	↓-5.5	最大潮位差
2/20 19:20	55.4	↓-5.5	最大潮位差
2/20 19:30	49.9	↓-5.5	最大潮位差
2/20 19:40	44.5	↓-5.4
2/20 19:50	39.2	↓-5.3
2/20 20:00	33.9	↓-5.3
2/20 20:10	28.8	↓-5.1
2/20 20:20	23.9	↓-4.9
2/20 20:30	19.2	↓-4.7
2/20 20:40	14.8	↓-4.4
2/20 20:50	10.6	↓-4.2
2/20 21:00	6.6	↓-4.0
2/20 21:10	3.0	↓-3.6
2/20 21:20	-0.3	↓-3.3
2/20 21:30	-3.3	↓-3.0
2/20 21:40	-5.9	↓-2.6
2/20 21:50	-8.1	↓-2.2
2/20 22:00	-9.9	↓-1.8
2/20 22:10	-11.4	↓-1.5
2/20 22:20	-12.4	↓-1.0
2/20 22:30	-13.0	↓-0.6
2/20 22:40	-13.2	↓-0.2	干潮
2/20 22:50	-13.0	↑0.2
2/20 23:00	-12.4	↑0.6
2/20 23:10	-11.4	↑1.0
2/20 23:20	-9.9	↑1.5
2/20 23:30	-8.1	↑1.8
2/20 23:40	-5.8	↑2.3
2/20 23:50	-3.2	↑2.6