1 (水)	04:01	10:04	16:04	22:19
	138cm	51cm	133cm	34cm
大潮 出 05:33 入 17:24 出 17:27 入 05:44

那珂湊（茨城）2031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	71.4	↑3.5
10/1 00:10	75.0	↑3.6
10/1 00:20	78.8	↑3.8
10/1 00:30	82.6	↑3.8
10/1 00:40	86.5	↑3.9
10/1 00:50	90.4	↑3.9
10/1 01:00	94.3	↑3.9
10/1 01:10	98.2	↑3.9
10/1 01:20	102.0	↑3.8
10/1 01:30	105.8	↑3.8
10/1 01:40	109.4	↑3.6
10/1 01:50	112.9	↑3.5
10/1 02:00	116.3	↑3.4
10/1 02:10	119.4	↑3.1
10/1 02:20	122.4	↑3.0
10/1 02:30	125.2	↑2.8
10/1 02:40	127.7	↑2.5
10/1 02:50	130.0	↑2.3
10/1 03:00	132.0	↑2.0
10/1 03:10	133.7	↑1.7
10/1 03:20	135.1	↑1.4
10/1 03:30	136.3	↑1.2
10/1 03:40	137.1	↑0.8
10/1 03:50	137.5	↑0.4
10/1 04:00	137.7	↑0.2	満潮
10/1 04:10	137.5	↓-0.2
10/1 04:20	137.0	↓-0.5
10/1 04:30	136.2	↓-0.8
10/1 04:40	135.1	↓-1.1
10/1 04:50	133.6	↓-1.5
10/1 05:00	131.9	↓-1.7
10/1 05:10	129.9	↓-2.0
10/1 05:20	127.6	↓-2.3
10/1 05:30	125.0	↓-2.6
10/1 05:40	122.3	↓-2.7
10/1 05:50	119.3	↓-3.0
10/1 06:00	116.1	↓-3.2
10/1 06:10	112.7	↓-3.4
10/1 06:20	109.3	↓-3.4
10/1 06:30	105.7	↓-3.6
10/1 06:40	102.0	↓-3.7
10/1 06:50	98.2	↓-3.8
10/1 07:00	94.5	↓-3.7
10/1 07:10	90.7	↓-3.8
10/1 07:20	86.9	↓-3.8
10/1 07:30	83.3	↓-3.6
10/1 07:40	79.7	↓-3.6
10/1 07:50	76.2	↓-3.5
10/1 08:00	72.8	↓-3.4
10/1 08:10	69.6	↓-3.2
10/1 08:20	66.6	↓-3.0
10/1 08:30	63.8	↓-2.8
10/1 08:40	61.3	↓-2.5
10/1 08:50	59.0	↓-2.3
10/1 09:00	56.9	↓-2.1
10/1 09:10	55.1	↓-1.8
10/1 09:20	53.6	↓-1.5
10/1 09:30	52.5	↓-1.1
10/1 09:40	51.6	↓-0.9
10/1 09:50	51.0	↓-0.6
10/1 10:00	50.8	↓-0.2	干潮
10/1 10:10	50.8	0
10/1 10:20	51.2	↑0.4
10/1 10:30	51.9	↑0.7
10/1 10:40	52.9	↑1.0
10/1 10:50	54.1	↑1.2
10/1 11:00	55.7	↑1.6
10/1 11:10	57.5	↑1.8
10/1 11:20	59.6	↑2.1
10/1 11:30	61.9	↑2.3
10/1 11:40	64.5	↑2.6
10/1 11:50	67.2	↑2.7
10/1 12:00	70.1	↑2.9
10/1 12:10	73.2	↑3.1
10/1 12:20	76.4	↑3.2
10/1 12:30	79.7	↑3.3
10/1 12:40	83.2	↑3.5
10/1 12:50	86.6	↑3.4
10/1 13:00	90.2	↑3.6
10/1 13:10	93.7	↑3.5
10/1 13:20	97.2	↑3.5
10/1 13:30	100.7	↑3.5
10/1 13:40	104.1	↑3.4
10/1 13:50	107.4	↑3.3
10/1 14:00	110.6	↑3.2
10/1 14:10	113.6	↑3.0
10/1 14:20	116.5	↑2.9
10/1 14:30	119.3	↑2.8
10/1 14:40	121.8	↑2.5
10/1 14:50	124.0	↑2.2
10/1 15:00	126.1	↑2.1
10/1 15:10	127.8	↑1.7
10/1 15:20	129.3	↑1.5
10/1 15:30	130.5	↑1.2
10/1 15:40	131.4	↑0.9
10/1 15:50	132.0	↑0.6
10/1 16:00	132.3	↑0.3	満潮
10/1 16:10	132.2	↓-0.1
10/1 16:20	131.8	↓-0.4
10/1 16:30	131.1	↓-0.7
10/1 16:40	130.0	↓-1.1
10/1 16:50	128.7	↓-1.3
10/1 17:00	127.0	↓-1.7
10/1 17:10	125.0	↓-2.0
10/1 17:20	122.7	↓-2.3
10/1 17:30	120.1	↓-2.6
10/1 17:40	117.3	↓-2.8
10/1 17:50	114.2	↓-3.1
10/1 18:00	110.9	↓-3.3
10/1 18:10	107.4	↓-3.5
10/1 18:20	103.7	↓-3.7
10/1 18:30	99.9	↓-3.8
10/1 18:40	95.9	↓-4.0
10/1 18:50	91.9	↓-4.0
10/1 19:00	87.7	↓-4.2	最大潮位差
10/1 19:10	83.6	↓-4.1
10/1 19:20	79.4	↓-4.2	最大潮位差
10/1 19:30	75.3	↓-4.1
10/1 19:40	71.2	↓-4.1
10/1 19:50	67.2	↓-4.0
10/1 20:00	63.3	↓-3.9
10/1 20:10	59.5	↓-3.8
10/1 20:20	56.0	↓-3.5
10/1 20:30	52.6	↓-3.4
10/1 20:40	49.4	↓-3.2
10/1 20:50	46.5	↓-2.9
10/1 21:00	43.8	↓-2.7
10/1 21:10	41.4	↓-2.4
10/1 21:20	39.3	↓-2.1
10/1 21:30	37.5	↓-1.8
10/1 21:40	36.1	↓-1.4
10/1 21:50	34.9	↓-1.2
10/1 22:00	34.1	↓-0.8
10/1 22:10	33.7	↓-0.4	干潮
10/1 22:20	33.6	↓-0.1
10/1 22:30	33.8	↑0.2
10/1 22:40	34.4	↑0.6
10/1 22:50	35.3	↑0.9
10/1 23:00	36.6	↑1.3
10/1 23:10	38.1	↑1.5
10/1 23:20	40.0	↑1.9
10/1 23:30	42.2	↑2.2
10/1 23:40	44.6	↑2.4
10/1 23:50	47.4	↑2.8