5 (日)	07:08	00:13	17:53	12:10
	123cm	27cm	130cm	83cm
中潮 出 05:36 入 17:18 出 20:13 入 09:51

那珂湊（茨城）2031年10月5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
10/5 00:00	27.0	↓-0.5
10/5 00:10	26.8	↓-0.2	干潮
10/5 00:20	26.9	↑0.1
10/5 00:30	27.3	↑0.4
10/5 00:40	28.0	↑0.7
10/5 00:50	29.0	↑1.0
10/5 01:00	30.3	↑1.3
10/5 01:10	31.8	↑1.5
10/5 01:20	33.6	↑1.8
10/5 01:30	35.6	↑2.0
10/5 01:40	37.8	↑2.2
10/5 01:50	40.3	↑2.5
10/5 02:00	43.0	↑2.7
10/5 02:10	45.8	↑2.8
10/5 02:20	48.8	↑3.0
10/5 02:30	51.9	↑3.1
10/5 02:40	55.2	↑3.3
10/5 02:50	58.6	↑3.4
10/5 03:00	62.1	↑3.5
10/5 03:10	65.6	↑3.5
10/5 03:20	69.2	↑3.6
10/5 03:30	72.8	↑3.6
10/5 03:40	76.4	↑3.6
10/5 03:50	80.0	↑3.6
10/5 04:00	83.6	↑3.6
10/5 04:10	87.1	↑3.5
10/5 04:20	90.6	↑3.5
10/5 04:30	94.0	↑3.4
10/5 04:40	97.2	↑3.2
10/5 04:50	100.3	↑3.1
10/5 05:00	103.3	↑3.0
10/5 05:10	106.1	↑2.8
10/5 05:20	108.8	↑2.7
10/5 05:30	111.2	↑2.4
10/5 05:40	113.5	↑2.3
10/5 05:50	115.5	↑2.0
10/5 06:00	117.3	↑1.8
10/5 06:10	118.9	↑1.6
10/5 06:20	120.2	↑1.3
10/5 06:30	121.2	↑1.0
10/5 06:40	122.0	↑0.8
10/5 06:50	122.6	↑0.6
10/5 07:00	122.9	↑0.3	満潮
10/5 07:10	122.9	0
10/5 07:20	122.7	↓-0.2
10/5 07:30	122.3	↓-0.4
10/5 07:40	121.6	↓-0.7
10/5 07:50	120.7	↓-0.9
10/5 08:00	119.6	↓-1.1
10/5 08:10	118.3	↓-1.3
10/5 08:20	116.8	↓-1.5
10/5 08:30	115.2	↓-1.6
10/5 08:40	113.5	↓-1.7
10/5 08:50	111.6	↓-1.9
10/5 09:00	109.7	↓-1.9
10/5 09:10	107.6	↓-2.1
10/5 09:20	105.6	↓-2.0
10/5 09:30	103.5	↓-2.1
10/5 09:40	101.4	↓-2.1
10/5 09:50	99.3	↓-2.1
10/5 10:00	97.3	↓-2.0
10/5 10:10	95.3	↓-2.0
10/5 10:20	93.4	↓-1.9
10/5 10:30	91.7	↓-1.7
10/5 10:40	90.0	↓-1.7
10/5 10:50	88.5	↓-1.5
10/5 11:00	87.1	↓-1.4
10/5 11:10	85.9	↓-1.2
10/5 11:20	84.9	↓-1.0
10/5 11:30	84.0	↓-0.9
10/5 11:40	83.4	↓-0.6
10/5 11:50	82.9	↓-0.5
10/5 12:00	82.6	↓-0.3	干潮
10/5 12:10	82.5	↓-0.1	干潮
10/5 12:20	82.6	↑0.1
10/5 12:30	82.9	↑0.3
10/5 12:40	83.4	↑0.5
10/5 12:50	84.1	↑0.7
10/5 13:00	85.0	↑0.9
10/5 13:10	86.0	↑1.0
10/5 13:20	87.2	↑1.2
10/5 13:30	88.5	↑1.3
10/5 13:40	90.0	↑1.5
10/5 13:50	91.6	↑1.6
10/5 14:00	93.3	↑1.7
10/5 14:10	95.1	↑1.8
10/5 14:20	97.0	↑1.9
10/5 14:30	98.9	↑1.9
10/5 14:40	100.9	↑2.0
10/5 14:50	103.0	↑2.1
10/5 15:00	105.1	↑2.1
10/5 15:10	107.2	↑2.1
10/5 15:20	109.3	↑2.1
10/5 15:30	111.3	↑2.0
10/5 15:40	113.4	↑2.1
10/5 15:50	115.3	↑1.9
10/5 16:00	117.2	↑1.9
10/5 16:10	119.1	↑1.9
10/5 16:20	120.8	↑1.7
10/5 16:30	122.4	↑1.6
10/5 16:40	123.8	↑1.4
10/5 16:50	125.2	↑1.4
10/5 17:00	126.3	↑1.1
10/5 17:10	127.3	↑1.0
10/5 17:20	128.1	↑0.8
10/5 17:30	128.7	↑0.6
10/5 17:40	129.1	↑0.4
10/5 17:50	129.3	↑0.2	満潮
10/5 18:00	129.2	↓-0.1
10/5 18:10	128.9	↓-0.3
10/5 18:20	128.4	↓-0.5
10/5 18:30	127.6	↓-0.8
10/5 18:40	126.6	↓-1.0
10/5 18:50	125.3	↓-1.3
10/5 19:00	123.7	↓-1.6
10/5 19:10	122.0	↓-1.7
10/5 19:20	119.9	↓-2.1
10/5 19:30	117.7	↓-2.2
10/5 19:40	115.2	↓-2.5
10/5 19:50	112.5	↓-2.7
10/5 20:00	109.6	↓-2.9
10/5 20:10	106.5	↓-3.1
10/5 20:20	103.2	↓-3.3
10/5 20:30	99.8	↓-3.4
10/5 20:40	96.3	↓-3.5
10/5 20:50	92.6	↓-3.7
10/5 21:00	88.9	↓-3.7
10/5 21:10	85.1	↓-3.8
10/5 21:20	81.3	↓-3.8
10/5 21:30	77.4	↓-3.9	最大潮位差
10/5 21:40	73.6	↓-3.8
10/5 21:50	69.8	↓-3.8
10/5 22:00	66.1	↓-3.7
10/5 22:10	62.4	↓-3.7
10/5 22:20	58.9	↓-3.5
10/5 22:30	55.4	↓-3.5
10/5 22:40	52.2	↓-3.2
10/5 22:50	49.1	↓-3.1
10/5 23:00	46.2	↓-2.9
10/5 23:10	43.5	↓-2.7
10/5 23:20	41.0	↓-2.5
10/5 23:30	38.8	↓-2.2
10/5 23:40	36.8	↓-2.0
10/5 23:50	35.0	↓-1.8