20 (土)	04:38	09:43	15:10	22:09
	117cm	71cm	130cm	-9cm
大潮 出 06:21 入 17:24 出 16:38 入 05:42

大洗（茨城）2027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	28.3	↑4.4
2/20 00:10	32.7	↑4.4
2/20 00:20	37.3	↑4.6
2/20 00:30	41.9	↑4.6
2/20 00:40	46.6	↑4.7
2/20 00:50	51.3	↑4.7
2/20 01:00	56.0	↑4.7
2/20 01:10	60.6	↑4.6
2/20 01:20	65.2	↑4.6
2/20 01:30	69.7	↑4.5
2/20 01:40	74.1	↑4.4
2/20 01:50	78.4	↑4.3
2/20 02:00	82.5	↑4.1
2/20 02:10	86.5	↑4.0
2/20 02:20	90.2	↑3.7
2/20 02:30	93.8	↑3.6
2/20 02:40	97.1	↑3.3
2/20 02:50	100.2	↑3.1
2/20 03:00	103.1	↑2.9
2/20 03:10	105.7	↑2.6
2/20 03:20	108.0	↑2.3
2/20 03:30	110.1	↑2.1
2/20 03:40	111.9	↑1.8
2/20 03:50	113.4	↑1.5
2/20 04:00	114.6	↑1.2
2/20 04:10	115.5	↑0.9
2/20 04:20	116.2	↑0.7
2/20 04:30	116.5	↑0.3	満潮
2/20 04:40	116.6	↑0.1
2/20 04:50	116.4	↓-0.2
2/20 05:00	115.9	↓-0.5
2/20 05:10	115.1	↓-0.8
2/20 05:20	114.1	↓-1.0
2/20 05:30	112.9	↓-1.2
2/20 05:40	111.5	↓-1.4
2/20 05:50	109.8	↓-1.7
2/20 06:00	108.0	↓-1.8
2/20 06:10	106.1	↓-1.9
2/20 06:20	104.0	↓-2.1
2/20 06:30	101.8	↓-2.2
2/20 06:40	99.5	↓-2.3
2/20 06:50	97.2	↓-2.3
2/20 07:00	94.9	↓-2.3
2/20 07:10	92.5	↓-2.4
2/20 07:20	90.2	↓-2.3
2/20 07:30	87.8	↓-2.4
2/20 07:40	85.6	↓-2.2
2/20 07:50	83.4	↓-2.2
2/20 08:00	81.4	↓-2.0
2/20 08:10	79.5	↓-1.9
2/20 08:20	77.7	↓-1.8
2/20 08:30	76.0	↓-1.7
2/20 08:40	74.6	↓-1.4
2/20 08:50	73.3	↓-1.3
2/20 09:00	72.3	↓-1.0
2/20 09:10	71.4	↓-0.9
2/20 09:20	70.8	↓-0.6
2/20 09:30	70.4	↓-0.4
2/20 09:40	70.2	↓-0.2	干潮
2/20 09:50	70.3	↑0.1
2/20 10:00	70.6	↑0.3
2/20 10:10	71.2	↑0.6
2/20 10:20	72.0	↑0.8
2/20 10:30	73.1	↑1.1
2/20 10:40	74.3	↑1.2
2/20 10:50	75.9	↑1.6
2/20 11:00	77.6	↑1.7
2/20 11:10	79.5	↑1.9
2/20 11:20	81.6	↑2.1
2/20 11:30	83.8	↑2.2
2/20 11:40	86.3	↑2.5
2/20 11:50	88.8	↑2.5
2/20 12:00	91.4	↑2.6
2/20 12:10	94.2	↑2.8
2/20 12:20	97.0	↑2.8
2/20 12:30	99.8	↑2.8
2/20 12:40	102.6	↑2.8
2/20 12:50	105.4	↑2.8
2/20 13:00	108.1	↑2.7
2/20 13:10	110.8	↑2.7
2/20 13:20	113.4	↑2.6
2/20 13:30	115.8	↑2.4
2/20 13:40	118.1	↑2.3
2/20 13:50	120.3	↑2.2
2/20 14:00	122.2	↑1.9
2/20 14:10	124.0	↑1.8
2/20 14:20	125.5	↑1.5
2/20 14:30	126.7	↑1.2
2/20 14:40	127.7	↑1.0
2/20 14:50	128.5	↑0.8
2/20 15:00	128.9	↑0.4	満潮
2/20 15:10	129.0	↑0.1	満潮
2/20 15:20	128.8	↓-0.2
2/20 15:30	128.3	↓-0.5
2/20 15:40	127.5	↓-0.8
2/20 15:50	126.3	↓-1.2
2/20 16:00	124.8	↓-1.5
2/20 16:10	123.0	↓-1.8
2/20 16:20	120.8	↓-2.2
2/20 16:30	118.4	↓-2.4
2/20 16:40	115.5	↓-2.9
2/20 16:50	112.4	↓-3.1
2/20 17:00	109.0	↓-3.4
2/20 17:10	105.2	↓-3.8
2/20 17:20	101.3	↓-3.9
2/20 17:30	97.0	↓-4.3
2/20 17:40	92.5	↓-4.5
2/20 17:50	87.8	↓-4.7
2/20 18:00	83.0	↓-4.8
2/20 18:10	78.0	↓-5.0
2/20 18:20	72.8	↓-5.2
2/20 18:30	67.6	↓-5.2
2/20 18:40	62.3	↓-5.3	最大潮位差
2/20 18:50	57.0	↓-5.3	最大潮位差
2/20 19:00	51.7	↓-5.3	最大潮位差
2/20 19:10	46.4	↓-5.3	最大潮位差
2/20 19:20	41.2	↓-5.2
2/20 19:30	36.1	↓-5.1
2/20 19:40	31.1	↓-5.0
2/20 19:50	26.3	↓-4.8
2/20 20:00	21.7	↓-4.6
2/20 20:10	17.4	↓-4.3
2/20 20:20	13.3	↓-4.1
2/20 20:30	9.4	↓-3.9
2/20 20:40	5.9	↓-3.5
2/20 20:50	2.7	↓-3.2
2/20 21:00	-0.2	↓-2.9
2/20 21:10	-2.7	↓-2.5
2/20 21:20	-4.8	↓-2.1
2/20 21:30	-6.6	↓-1.8
2/20 21:40	-7.9	↓-1.3
2/20 21:50	-8.9	↓-1.0
2/20 22:00	-9.4	↓-0.5	干潮
2/20 22:10	-9.5	↓-0.1
2/20 22:20	-9.3	↑0.2
2/20 22:30	-8.5	↑0.8
2/20 22:40	-7.4	↑1.1
2/20 22:50	-5.9	↑1.5
2/20 23:00	-4.0	↑1.9
2/20 23:10	-1.7	↑2.3
2/20 23:20	0.9	↑2.6
2/20 23:30	3.9	↑3.0
2/20 23:40	7.2	↑3.3
2/20 23:50	10.8	↑3.6