20 (木)	02:56	09:42	16:19	21:56
	146cm	28cm	143cm	65cm
大潮 出 05:25 入 17:39 出 17:43 入 04:20 潮干狩り ○ 08:44～10:39

大洗（茨城）2040年09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
9/20 00:00	109.7	↑3.0
9/20 00:10	112.8	↑3.1
9/20 00:20	115.9	↑3.1
9/20 00:30	119.0	↑3.1
9/20 00:40	122.0	↑3.0
9/20 00:50	124.9	↑2.9
9/20 01:00	127.7	↑2.8
9/20 01:10	130.4	↑2.7
9/20 01:20	132.9	↑2.5
9/20 01:30	135.2	↑2.3
9/20 01:40	137.4	↑2.2
9/20 01:50	139.3	↑1.9
9/20 02:00	141.0	↑1.7
9/20 02:10	142.4	↑1.4
9/20 02:20	143.6	↑1.2
9/20 02:30	144.5	↑0.9
9/20 02:40	145.1	↑0.6
9/20 02:50	145.4	↑0.3	満潮
9/20 03:00	145.4	0
9/20 03:10	145.1	↓-0.3
9/20 03:20	144.5	↓-0.6
9/20 03:30	143.6	↓-0.9
9/20 03:40	142.3	↓-1.3
9/20 03:50	140.8	↓-1.5
9/20 04:00	138.9	↓-1.9
9/20 04:10	136.8	↓-2.1
9/20 04:20	134.3	↓-2.5
9/20 04:30	131.5	↓-2.8
9/20 04:40	128.5	↓-3.0
9/20 04:50	125.2	↓-3.3
9/20 05:00	121.7	↓-3.5
9/20 05:10	117.9	↓-3.8
9/20 05:20	114.0	↓-3.9
9/20 05:30	109.8	↓-4.2
9/20 05:40	105.6	↓-4.2
9/20 05:50	101.1	↓-4.5
9/20 06:00	96.6	↓-4.5
9/20 06:10	92.0	↓-4.6
9/20 06:20	87.4	↓-4.6
9/20 06:30	82.7	↓-4.7	最大潮位差
9/20 06:40	78.1	↓-4.6
9/20 06:50	73.5	↓-4.6
9/20 07:00	69.0	↓-4.5
9/20 07:10	64.6	↓-4.4
9/20 07:20	60.4	↓-4.2
9/20 07:30	56.3	↓-4.1
9/20 07:40	52.4	↓-3.9
9/20 07:50	48.7	↓-3.7
9/20 08:00	45.2	↓-3.5
9/20 08:10	42.0	↓-3.2
9/20 08:20	39.1	↓-2.9
9/20 08:30	36.5	↓-2.6
9/20 08:40	34.1	↓-2.4
9/20 08:50	32.2	↓-1.9
9/20 09:00	30.5	↓-1.7
9/20 09:10	29.2	↓-1.3
9/20 09:20	28.3	↓-0.9
9/20 09:30	27.7	↓-0.6
9/20 09:40	27.4	↓-0.3	干潮
9/20 09:50	27.6	↑0.2
9/20 10:00	28.1	↑0.5
9/20 10:10	29.0	↑0.9
9/20 10:20	30.2	↑1.2
9/20 10:30	31.8	↑1.6
9/20 10:40	33.8	↑2.0
9/20 10:50	36.0	↑2.2
9/20 11:00	38.6	↑2.6
9/20 11:10	41.5	↑2.9
9/20 11:20	44.7	↑3.2
9/20 11:30	48.1	↑3.4
9/20 11:40	51.7	↑3.6
9/20 11:50	55.6	↑3.9
9/20 12:00	59.7	↑4.1
9/20 12:10	63.9	↑4.2
9/20 12:20	68.2	↑4.3
9/20 12:30	72.7	↑4.5
9/20 12:40	77.2	↑4.5
9/20 12:50	81.7	↑4.5
9/20 13:00	86.3	↑4.6
9/20 13:10	90.9	↑4.6
9/20 13:20	95.4	↑4.5
9/20 13:30	99.8	↑4.4
9/20 13:40	104.1	↑4.3
9/20 13:50	108.3	↑4.2
9/20 14:00	112.3	↑4.0
9/20 14:10	116.2	↑3.9
9/20 14:20	119.8	↑3.6
9/20 14:30	123.3	↑3.5
9/20 14:40	126.5	↑3.2
9/20 14:50	129.4	↑2.9
9/20 15:00	132.1	↑2.7
9/20 15:10	134.5	↑2.4
9/20 15:20	136.6	↑2.1
9/20 15:30	138.3	↑1.7
9/20 15:40	139.8	↑1.5
9/20 15:50	140.9	↑1.1
9/20 16:00	141.7	↑0.8
9/20 16:10	142.1	↑0.4	満潮
9/20 16:20	142.2	↑0.1
9/20 16:30	142.0	↓-0.2
9/20 16:40	141.4	↓-0.6
9/20 16:50	140.5	↓-0.9
9/20 17:00	139.2	↓-1.3
9/20 17:10	137.7	↓-1.5
9/20 17:20	135.8	↓-1.9
9/20 17:30	133.7	↓-2.1
9/20 17:40	131.3	↓-2.4
9/20 17:50	128.6	↓-2.7
9/20 18:00	125.8	↓-2.8
9/20 18:10	122.7	↓-3.1
9/20 18:20	119.5	↓-3.2
9/20 18:30	116.2	↓-3.3
9/20 18:40	112.7	↓-3.5
9/20 18:50	109.1	↓-3.6
9/20 19:00	105.6	↓-3.5
9/20 19:10	102.0	↓-3.6
9/20 19:20	98.4	↓-3.6
9/20 19:30	94.8	↓-3.6
9/20 19:40	91.4	↓-3.4
9/20 19:50	88.0	↓-3.4
9/20 20:00	84.8	↓-3.2
9/20 20:10	81.8	↓-3.0
9/20 20:20	78.9	↓-2.9
9/20 20:30	76.3	↓-2.6
9/20 20:40	73.9	↓-2.4
9/20 20:50	71.7	↓-2.2
9/20 21:00	69.8	↓-1.9
9/20 21:10	68.2	↓-1.6
9/20 21:20	66.9	↓-1.3
9/20 21:30	66.0	↓-0.9
9/20 21:40	65.3	↓-0.7
9/20 21:50	65.0	↓-0.3	干潮
9/20 22:00	65.0	0
9/20 22:10	65.3	↑0.3
9/20 22:20	66.0	↑0.7
9/20 22:30	67.0	↑1.0
9/20 22:40	68.3	↑1.3
9/20 22:50	69.9	↑1.6
9/20 23:00	71.9	↑2.0
9/20 23:10	74.1	↑2.2
9/20 23:20	76.6	↑2.5
9/20 23:30	79.4	↑2.8
9/20 23:40	82.4	↑3.0
9/20 23:50	85.6	↑3.2