20 (木)	02:59	09:43	16:15	21:55
	146cm	28cm	142cm	62cm
大潮 出 05:25 入 17:39 出 17:43 入 04:20 潮干狩り ○ 08:49～10:36

日立（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	108.2	↑3.3
9/20 00:10	111.4	↑3.2
9/20 00:20	114.7	↑3.3
9/20 00:30	117.9	↑3.2
9/20 00:40	121.0	↑3.1
9/20 00:50	124.0	↑3.0
9/20 01:00	127.0	↑3.0
9/20 01:10	129.7	↑2.7
9/20 01:20	132.4	↑2.7
9/20 01:30	134.8	↑2.4
9/20 01:40	137.0	↑2.2
9/20 01:50	139.0	↑2.0
9/20 02:00	140.8	↑1.8
9/20 02:10	142.3	↑1.5
9/20 02:20	143.5	↑1.2
9/20 02:30	144.5	↑1.0
9/20 02:40	145.2	↑0.7
9/20 02:50	145.6	↑0.4	満潮
9/20 03:00	145.7	↑0.1
9/20 03:10	145.5	↓-0.2
9/20 03:20	144.9	↓-0.6
9/20 03:30	144.1	↓-0.8
9/20 03:40	142.9	↓-1.2
9/20 03:50	141.3	↓-1.6
9/20 04:00	139.5	↓-1.8
9/20 04:10	137.4	↓-2.1
9/20 04:20	134.9	↓-2.5
9/20 04:30	132.1	↓-2.8
9/20 04:40	129.0	↓-3.1
9/20 04:50	125.7	↓-3.3
9/20 05:00	122.1	↓-3.6
9/20 05:10	118.3	↓-3.8
9/20 05:20	114.2	↓-4.1
9/20 05:30	110.0	↓-4.2
9/20 05:40	105.6	↓-4.4
9/20 05:50	101.1	↓-4.5
9/20 06:00	96.5	↓-4.6
9/20 06:10	91.8	↓-4.7	最大潮位差
9/20 06:20	87.2	↓-4.6
9/20 06:30	82.5	↓-4.7	最大潮位差
9/20 06:40	77.9	↓-4.6
9/20 06:50	73.3	↓-4.6
9/20 07:00	68.8	↓-4.5
9/20 07:10	64.5	↓-4.3
9/20 07:20	60.3	↓-4.2
9/20 07:30	56.2	↓-4.1
9/20 07:40	52.4	↓-3.8
9/20 07:50	48.8	↓-3.6
9/20 08:00	45.4	↓-3.4
9/20 08:10	42.3	↓-3.1
9/20 08:20	39.5	↓-2.8
9/20 08:30	36.9	↓-2.6
9/20 08:40	34.6	↓-2.3
9/20 08:50	32.7	↓-1.9
9/20 09:00	31.0	↓-1.7
9/20 09:10	29.7	↓-1.3
9/20 09:20	28.8	↓-0.9
9/20 09:30	28.2	↓-0.6
9/20 09:40	27.9	↓-0.3	干潮
9/20 09:50	28.0	↑0.1
9/20 10:00	28.5	↑0.5
9/20 10:10	29.3	↑0.8
9/20 10:20	30.5	↑1.2
9/20 10:30	32.1	↑1.6
9/20 10:40	34.0	↑1.9
9/20 10:50	36.2	↑2.2
9/20 11:00	38.8	↑2.6
9/20 11:10	41.7	↑2.9
9/20 11:20	44.9	↑3.2
9/20 11:30	48.3	↑3.4
9/20 11:40	52.0	↑3.7
9/20 11:50	56.0	↑4.0
9/20 12:00	60.1	↑4.1
9/20 12:10	64.3	↑4.2
9/20 12:20	68.7	↑4.4
9/20 12:30	73.2	↑4.5
9/20 12:40	77.7	↑4.5
9/20 12:50	82.3	↑4.6
9/20 13:00	86.8	↑4.5
9/20 13:10	91.4	↑4.6
9/20 13:20	95.8	↑4.4
9/20 13:30	100.2	↑4.4
9/20 13:40	104.5	↑4.3
9/20 13:50	108.6	↑4.1
9/20 14:00	112.6	↑4.0
9/20 14:10	116.4	↑3.8
9/20 14:20	120.0	↑3.6
9/20 14:30	123.3	↑3.3
9/20 14:40	126.5	↑3.2
9/20 14:50	129.3	↑2.8
9/20 15:00	131.9	↑2.6
9/20 15:10	134.2	↑2.3
9/20 15:20	136.3	↑2.1
9/20 15:30	138.0	↑1.7
9/20 15:40	139.3	↑1.3
9/20 15:50	140.3	↑1.0
9/20 16:00	141.0	↑0.7
9/20 16:10	141.4	↑0.4	満潮
9/20 16:20	141.3	↓-0.1
9/20 16:30	141.0	↓-0.3
9/20 16:40	140.2	↓-0.8
9/20 16:50	139.1	↓-1.1
9/20 17:00	137.7	↓-1.4
9/20 17:10	136.0	↓-1.7
9/20 17:20	133.9	↓-2.1
9/20 17:30	131.5	↓-2.4
9/20 17:40	128.9	↓-2.6
9/20 17:50	126.1	↓-2.8
9/20 18:00	123.0	↓-3.1
9/20 18:10	119.7	↓-3.3
9/20 18:20	116.3	↓-3.4
9/20 18:30	112.8	↓-3.5
9/20 18:40	109.2	↓-3.6
9/20 18:50	105.5	↓-3.7
9/20 19:00	101.8	↓-3.7
9/20 19:10	98.2	↓-3.6
9/20 19:20	94.5	↓-3.7
9/20 19:30	91.0	↓-3.5
9/20 19:40	87.5	↓-3.5
9/20 19:50	84.2	↓-3.3
9/20 20:00	81.0	↓-3.2
9/20 20:10	78.0	↓-3.0
9/20 20:20	75.2	↓-2.8
9/20 20:30	72.6	↓-2.6
9/20 20:40	70.3	↓-2.3
9/20 20:50	68.2	↓-2.1
9/20 21:00	66.3	↓-1.9
9/20 21:10	64.8	↓-1.5
9/20 21:20	63.5	↓-1.3
9/20 21:30	62.6	↓-0.9
9/20 21:40	62.0	↓-0.6
9/20 21:50	61.7	↓-0.3	干潮
9/20 22:00	61.7	0
9/20 22:10	62.0	↑0.3
9/20 22:20	62.7	↑0.7
9/20 22:30	63.8	↑1.1
9/20 22:40	65.1	↑1.3
9/20 22:50	66.8	↑1.7
9/20 23:00	68.9	↑2.1
9/20 23:10	71.2	↑2.3
9/20 23:20	73.8	↑2.6
9/20 23:30	76.7	↑2.9
9/20 23:40	79.8	↑3.1
9/20 23:50	83.2	↑3.4