9 (木)	05:06	11:29	17:49	23:35
	139cm	40cm	128cm	54cm
中潮 出 05:16 入 17:56 出 07:17 入 19:24

那珂湊（茨城）2021年09月9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
9/9 00:00	67.3	↑1.5
9/9 00:10	69.0	↑1.7
9/9 00:20	71.0	↑2.0
9/9 00:30	73.2	↑2.2
9/9 00:40	75.5	↑2.3
9/9 00:50	78.1	↑2.6
9/9 01:00	80.8	↑2.7
9/9 01:10	83.7	↑2.9
9/9 01:20	86.6	↑2.9
9/9 01:30	89.7	↑3.1
9/9 01:40	92.9	↑3.2
9/9 01:50	96.1	↑3.2
9/9 02:00	99.3	↑3.2
9/9 02:10	102.6	↑3.3
9/9 02:20	105.8	↑3.2
9/9 02:30	109.0	↑3.2
9/9 02:40	112.2	↑3.2
9/9 02:50	115.3	↑3.1
9/9 03:00	118.2	↑2.9
9/9 03:10	121.1	↑2.9
9/9 03:20	123.8	↑2.7
9/9 03:30	126.3	↑2.5
9/9 03:40	128.7	↑2.4
9/9 03:50	130.8	↑2.1
9/9 04:00	132.8	↑2.0
9/9 04:10	134.5	↑1.7
9/9 04:20	135.9	↑1.4
9/9 04:30	137.1	↑1.2
9/9 04:40	137.9	↑0.8
9/9 04:50	138.5	↑0.6
9/9 05:00	138.8	↑0.3	満潮
9/9 05:10	138.8	0
9/9 05:20	138.5	↓-0.3
9/9 05:30	137.9	↓-0.6
9/9 05:40	137.0	↓-0.9
9/9 05:50	135.7	↓-1.3
9/9 06:00	134.2	↓-1.5
9/9 06:10	132.3	↓-1.9
9/9 06:20	130.2	↓-2.1
9/9 06:30	127.7	↓-2.5
9/9 06:40	125.0	↓-2.7
9/9 06:50	122.1	↓-2.9
9/9 07:00	119.0	↓-3.1
9/9 07:10	115.6	↓-3.4
9/9 07:20	112.0	↓-3.6
9/9 07:30	108.3	↓-3.7
9/9 07:40	104.4	↓-3.9
9/9 07:50	100.5	↓-3.9
9/9 08:00	96.4	↓-4.1	最大潮位差
9/9 08:10	92.3	↓-4.1	最大潮位差
9/9 08:20	88.2	↓-4.1	最大潮位差
9/9 08:30	84.1	↓-4.1	最大潮位差
9/9 08:40	80.0	↓-4.1	最大潮位差
9/9 08:50	76.0	↓-4.0
9/9 09:00	72.1	↓-3.9
9/9 09:10	68.2	↓-3.9
9/9 09:20	64.6	↓-3.6
9/9 09:30	61.1	↓-3.5
9/9 09:40	57.8	↓-3.3
9/9 09:50	54.7	↓-3.1
9/9 10:00	51.9	↓-2.8
9/9 10:10	49.4	↓-2.5
9/9 10:20	47.1	↓-2.3
9/9 10:30	45.1	↓-2.0
9/9 10:40	43.4	↓-1.7
9/9 10:50	42.0	↓-1.4
9/9 11:00	40.9	↓-1.1
9/9 11:10	40.1	↓-0.8
9/9 11:20	39.7	↓-0.4	干潮
9/9 11:30	39.6	↓-0.1
9/9 11:40	39.8	↑0.2
9/9 11:50	40.4	↑0.6
9/9 12:00	41.2	↑0.8
9/9 12:10	42.3	↑1.1
9/9 12:20	43.8	↑1.5
9/9 12:30	45.5	↑1.7
9/9 12:40	47.4	↑1.9
9/9 12:50	49.6	↑2.2
9/9 13:00	52.1	↑2.5
9/9 13:10	54.7	↑2.6
9/9 13:20	57.6	↑2.9
9/9 13:30	60.6	↑3.0
9/9 13:40	63.7	↑3.1
9/9 13:50	67.0	↑3.3
9/9 14:00	70.4	↑3.4
9/9 14:10	73.9	↑3.5
9/9 14:20	77.5	↑3.6
9/9 14:30	81.0	↑3.5
9/9 14:40	84.6	↑3.6
9/9 14:50	88.2	↑3.6
9/9 15:00	91.8	↑3.6
9/9 15:10	95.3	↑3.5
9/9 15:20	98.7	↑3.4
9/9 15:30	102.0	↑3.3
9/9 15:40	105.2	↑3.2
9/9 15:50	108.2	↑3.0
9/9 16:00	111.1	↑2.9
9/9 16:10	113.8	↑2.7
9/9 16:20	116.3	↑2.5
9/9 16:30	118.6	↑2.3
9/9 16:40	120.7	↑2.1
9/9 16:50	122.4	↑1.7
9/9 17:00	124.0	↑1.6
9/9 17:10	125.2	↑1.2
9/9 17:20	126.2	↑1.0
9/9 17:30	126.9	↑0.7
9/9 17:40	127.3	↑0.4	満潮
9/9 17:50	127.4	↑0.1
9/9 18:00	127.2	↓-0.2
9/9 18:10	126.7	↓-0.5
9/9 18:20	125.9	↓-0.8
9/9 18:30	124.8	↓-1.1
9/9 18:40	123.4	↓-1.4
9/9 18:50	121.7	↓-1.7
9/9 19:00	119.8	↓-1.9
9/9 19:10	117.7	↓-2.1
9/9 19:20	115.3	↓-2.4
9/9 19:30	112.7	↓-2.6
9/9 19:40	110.0	↓-2.7
9/9 19:50	107.0	↓-3.0
9/9 20:00	104.0	↓-3.0
9/9 20:10	100.8	↓-3.2
9/9 20:20	97.5	↓-3.3
9/9 20:30	94.2	↓-3.3
9/9 20:40	90.9	↓-3.3
9/9 20:50	87.5	↓-3.4
9/9 21:00	84.2	↓-3.3
9/9 21:10	81.0	↓-3.2
9/9 21:20	77.8	↓-3.2
9/9 21:30	74.7	↓-3.1
9/9 21:40	71.8	↓-2.9
9/9 21:50	69.0	↓-2.8
9/9 22:00	66.4	↓-2.6
9/9 22:10	64.0	↓-2.4
9/9 22:20	61.8	↓-2.2
9/9 22:30	59.9	↓-1.9
9/9 22:40	58.2	↓-1.7
9/9 22:50	56.8	↓-1.4
9/9 23:00	55.7	↓-1.1
9/9 23:10	54.8	↓-0.9
9/9 23:20	54.2	↓-0.6
9/9 23:30	54.0	↓-0.2	干潮
9/9 23:40	54.0	0
9/9 23:50	54.3	↑0.3