1 (月)	04:37	10:34	16:23	22:45
	142cm	57cm	132cm	25cm
大潮 出 05:33 入 17:23 出 06:42 入 17:41

那珂湊（茨城）2046年10月1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
10/1 00:00	56.3	↑3.4
10/1 00:10	59.9	↑3.6
10/1 00:20	63.6	↑3.7
10/1 00:30	67.5	↑3.9
10/1 00:40	71.5	↑4.0
10/1 00:50	75.6	↑4.1
10/1 01:00	79.8	↑4.2
10/1 01:10	84.1	↑4.3
10/1 01:20	88.4	↑4.3
10/1 01:30	92.7	↑4.3
10/1 01:40	96.9	↑4.2
10/1 01:50	101.1	↑4.2
10/1 02:00	105.2	↑4.1
10/1 02:10	109.2	↑4.0
10/1 02:20	113.1	↑3.9
10/1 02:30	116.8	↑3.7
10/1 02:40	120.4	↑3.6
10/1 02:50	123.7	↑3.3
10/1 03:00	126.8	↑3.1
10/1 03:10	129.7	↑2.9
10/1 03:20	132.3	↑2.6
10/1 03:30	134.6	↑2.3
10/1 03:40	136.6	↑2.0
10/1 03:50	138.3	↑1.7
10/1 04:00	139.7	↑1.4
10/1 04:10	140.8	↑1.1
10/1 04:20	141.5	↑0.7
10/1 04:30	141.9	↑0.4	満潮
10/1 04:40	141.9	0
10/1 04:50	141.6	↓-0.3
10/1 05:00	141.0	↓-0.6
10/1 05:10	140.1	↓-0.9
10/1 05:20	138.8	↓-1.3
10/1 05:30	137.2	↓-1.6
10/1 05:40	135.3	↓-1.9
10/1 05:50	133.1	↓-2.2
10/1 06:00	130.7	↓-2.4
10/1 06:10	128.0	↓-2.7
10/1 06:20	125.1	↓-2.9
10/1 06:30	121.9	↓-3.2
10/1 06:40	118.6	↓-3.3
10/1 06:50	115.2	↓-3.4
10/1 07:00	111.6	↓-3.6
10/1 07:10	108.0	↓-3.6
10/1 07:20	104.3	↓-3.7
10/1 07:30	100.5	↓-3.8
10/1 07:40	96.7	↓-3.8
10/1 07:50	93.0	↓-3.7
10/1 08:00	89.3	↓-3.7
10/1 08:10	85.7	↓-3.6
10/1 08:20	82.2	↓-3.5
10/1 08:30	78.8	↓-3.4
10/1 08:40	75.7	↓-3.1
10/1 08:50	72.7	↓-3.0
10/1 09:00	69.9	↓-2.8
10/1 09:10	67.3	↓-2.6
10/1 09:20	65.0	↓-2.3
10/1 09:30	62.9	↓-2.1
10/1 09:40	61.2	↓-1.7
10/1 09:50	59.7	↓-1.5
10/1 10:00	58.5	↓-1.2
10/1 10:10	57.6	↓-0.9
10/1 10:20	57.1	↓-0.5
10/1 10:30	56.8	↓-0.3	干潮
10/1 10:40	56.9	↑0.1
10/1 10:50	57.2	↑0.3
10/1 11:00	57.9	↑0.7
10/1 11:10	58.9	↑1.0
10/1 11:20	60.1	↑1.2
10/1 11:30	61.6	↑1.5
10/1 11:40	63.4	↑1.8
10/1 11:50	65.4	↑2.0
10/1 12:00	67.7	↑2.3
10/1 12:10	70.1	↑2.4
10/1 12:20	72.8	↑2.7
10/1 12:30	75.6	↑2.8
10/1 12:40	78.5	↑2.9
10/1 12:50	81.6	↑3.1
10/1 13:00	84.8	↑3.2
10/1 13:10	88.0	↑3.2
10/1 13:20	91.3	↑3.3
10/1 13:30	94.6	↑3.3
10/1 13:40	97.9	↑3.3
10/1 13:50	101.2	↑3.3
10/1 14:00	104.4	↑3.2
10/1 14:10	107.5	↑3.1
10/1 14:20	110.6	↑3.1
10/1 14:30	113.5	↑2.9
10/1 14:40	116.2	↑2.7
10/1 14:50	118.8	↑2.6
10/1 15:00	121.2	↑2.4
10/1 15:10	123.4	↑2.2
10/1 15:20	125.3	↑1.9
10/1 15:30	127.0	↑1.7
10/1 15:40	128.4	↑1.4
10/1 15:50	129.6	↑1.2
10/1 16:00	130.4	↑0.8
10/1 16:10	130.9	↑0.5
10/1 16:20	131.2	↑0.3	満潮
10/1 16:30	131.0	↓-0.2
10/1 16:40	130.6	↓-0.4
10/1 16:50	129.8	↓-0.8
10/1 17:00	128.7	↓-1.1
10/1 17:10	127.3	↓-1.4
10/1 17:20	125.6	↓-1.7
10/1 17:30	123.5	↓-2.1
10/1 17:40	121.1	↓-2.4
10/1 17:50	118.5	↓-2.6
10/1 18:00	115.5	↓-3.0
10/1 18:10	112.3	↓-3.2
10/1 18:20	108.9	↓-3.4
10/1 18:30	105.3	↓-3.6
10/1 18:40	101.4	↓-3.9
10/1 18:50	97.4	↓-4.0
10/1 19:00	93.3	↓-4.1
10/1 19:10	89.0	↓-4.3
10/1 19:20	84.7	↓-4.3
10/1 19:30	80.3	↓-4.4
10/1 19:40	75.8	↓-4.5	最大潮位差
10/1 19:50	71.4	↓-4.4
10/1 20:00	67.1	↓-4.3
10/1 20:10	62.8	↓-4.3
10/1 20:20	58.6	↓-4.2
10/1 20:30	54.5	↓-4.1
10/1 20:40	50.7	↓-3.8
10/1 20:50	47.0	↓-3.7
10/1 21:00	43.5	↓-3.5
10/1 21:10	40.2	↓-3.3
10/1 21:20	37.3	↓-2.9
10/1 21:30	34.6	↓-2.7
10/1 21:40	32.2	↓-2.4
10/1 21:50	30.1	↓-2.1
10/1 22:00	28.4	↓-1.7
10/1 22:10	27.0	↓-1.4
10/1 22:20	26.0	↓-1.0
10/1 22:30	25.3	↓-0.7
10/1 22:40	25.0	↓-0.3	干潮
10/1 22:50	25.0	0
10/1 23:00	25.4	↑0.4
10/1 23:10	26.2	↑0.8
10/1 23:20	27.3	↑1.1
10/1 23:30	28.8	↑1.5
10/1 23:40	30.6	↑1.8
10/1 23:50	32.7	↑2.1