6 (水)	03:31	09:52	16:08	22:04
	134cm	40cm	129cm	47cm
大潮 出 05:37 入 17:16 出 04:58 入 17:23

那珂湊（茨城）2021年10月6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
10/6 00:00	86.3	↑3.0
10/6 00:10	89.5	↑3.2
10/6 00:20	92.7	↑3.2
10/6 00:30	95.9	↑3.2
10/6 00:40	99.2	↑3.3
10/6 00:50	102.4	↑3.2
10/6 01:00	105.5	↑3.1
10/6 01:10	108.7	↑3.2
10/6 01:20	111.7	↑3.0
10/6 01:30	114.6	↑2.9
10/6 01:40	117.3	↑2.7
10/6 01:50	119.9	↑2.6
10/6 02:00	122.4	↑2.5
10/6 02:10	124.6	↑2.2
10/6 02:20	126.6	↑2.0
10/6 02:30	128.4	↑1.8
10/6 02:40	130.0	↑1.6
10/6 02:50	131.3	↑1.3
10/6 03:00	132.3	↑1.0
10/6 03:10	133.0	↑0.7
10/6 03:20	133.5	↑0.5
10/6 03:30	133.7	↑0.2	満潮
10/6 03:40	133.5	↓-0.2
10/6 03:50	133.1	↓-0.4
10/6 04:00	132.3	↓-0.8
10/6 04:10	131.3	↓-1.0
10/6 04:20	130.0	↓-1.3
10/6 04:30	128.3	↓-1.7
10/6 04:40	126.4	↓-1.9
10/6 04:50	124.2	↓-2.2
10/6 05:00	121.8	↓-2.4
10/6 05:10	119.1	↓-2.7
10/6 05:20	116.2	↓-2.9
10/6 05:30	113.1	↓-3.1
10/6 05:40	109.8	↓-3.3
10/6 05:50	106.3	↓-3.5
10/6 06:00	102.7	↓-3.6
10/6 06:10	99.0	↓-3.7
10/6 06:20	95.2	↓-3.8
10/6 06:30	91.3	↓-3.9
10/6 06:40	87.4	↓-3.9
10/6 06:50	83.4	↓-4.0	最大潮位差
10/6 07:00	79.5	↓-3.9
10/6 07:10	75.6	↓-3.9
10/6 07:20	71.8	↓-3.8
10/6 07:30	68.1	↓-3.7
10/6 07:40	64.6	↓-3.5
10/6 07:50	61.1	↓-3.5
10/6 08:00	57.9	↓-3.2
10/6 08:10	54.9	↓-3.0
10/6 08:20	52.0	↓-2.9
10/6 08:30	49.5	↓-2.5
10/6 08:40	47.2	↓-2.3
10/6 08:50	45.1	↓-2.1
10/6 09:00	43.4	↓-1.7
10/6 09:10	41.9	↓-1.5
10/6 09:20	40.8	↓-1.1
10/6 09:30	39.9	↓-0.9
10/6 09:40	39.4	↓-0.5
10/6 09:50	39.2	↓-0.2	干潮
10/6 10:00	39.4	↑0.2
10/6 10:10	39.8	↑0.4
10/6 10:20	40.6	↑0.8
10/6 10:30	41.7	↑1.1
10/6 10:40	43.1	↑1.4
10/6 10:50	44.8	↑1.7
10/6 11:00	46.7	↑1.9
10/6 11:10	48.9	↑2.2
10/6 11:20	51.4	↑2.5
10/6 11:30	54.0	↑2.6
10/6 11:40	56.9	↑2.9
10/6 11:50	60.0	↑3.1
10/6 12:00	63.2	↑3.2
10/6 12:10	66.6	↑3.4
10/6 12:20	70.1	↑3.5
10/6 12:30	73.7	↑3.6
10/6 12:40	77.3	↑3.6
10/6 12:50	81.0	↑3.7
10/6 13:00	84.8	↑3.8
10/6 13:10	88.5	↑3.7
10/6 13:20	92.2	↑3.7
10/6 13:30	95.8	↑3.6
10/6 13:40	99.3	↑3.5
10/6 13:50	102.8	↑3.5
10/6 14:00	106.1	↑3.3
10/6 14:10	109.2	↑3.1
10/6 14:20	112.2	↑3.0
10/6 14:30	115.0	↑2.8
10/6 14:40	117.6	↑2.6
10/6 14:50	119.9	↑2.3
10/6 15:00	122.0	↑2.1
10/6 15:10	123.9	↑1.9
10/6 15:20	125.4	↑1.5
10/6 15:30	126.7	↑1.3
10/6 15:40	127.7	↑1.0
10/6 15:50	128.4	↑0.7
10/6 16:00	128.8	↑0.4	満潮
10/6 16:10	128.8	0
10/6 16:20	128.6	↓-0.2
10/6 16:30	128.0	↓-0.6
10/6 16:40	127.1	↓-0.9
10/6 16:50	126.0	↓-1.1
10/6 17:00	124.5	↓-1.5
10/6 17:10	122.7	↓-1.8
10/6 17:20	120.7	↓-2.0
10/6 17:30	118.4	↓-2.3
10/6 17:40	115.9	↓-2.5
10/6 17:50	113.2	↓-2.7
10/6 18:00	110.3	↓-2.9
10/6 18:10	107.1	↓-3.2
10/6 18:20	103.9	↓-3.2
10/6 18:30	100.5	↓-3.4
10/6 18:40	97.0	↓-3.5
10/6 18:50	93.4	↓-3.6
10/6 19:00	89.8	↓-3.6
10/6 19:10	86.2	↓-3.6
10/6 19:20	82.6	↓-3.6
10/6 19:30	79.0	↓-3.6
10/6 19:40	75.5	↓-3.5
10/6 19:50	72.1	↓-3.4
10/6 20:00	68.8	↓-3.3
10/6 20:10	65.6	↓-3.2
10/6 20:20	62.7	↓-2.9
10/6 20:30	59.9	↓-2.8
10/6 20:40	57.4	↓-2.5
10/6 20:50	55.1	↓-2.3
10/6 21:00	53.0	↓-2.1
10/6 21:10	51.2	↓-1.8
10/6 21:20	49.7	↓-1.5
10/6 21:30	48.5	↓-1.2
10/6 21:40	47.6	↓-0.9
10/6 21:50	47.1	↓-0.5
10/6 22:00	46.8	↓-0.3	干潮
10/6 22:10	46.9	↑0.1
10/6 22:20	47.2	↑0.3
10/6 22:30	47.9	↑0.7
10/6 22:40	48.9	↑1.0
10/6 22:50	50.2	↑1.3
10/6 23:00	51.8	↑1.6
10/6 23:10	53.6	↑1.8
10/6 23:20	55.8	↑2.2
10/6 23:30	58.2	↑2.4
10/6 23:40	60.8	↑2.6
10/6 23:50	63.6	↑2.8