9 (日)	09:10	01:39	18:39	12:59
	109cm	37cm	122cm	97cm
小潮 出 05:39 入 17:12 出 21:38 入 11:55

那珂湊（茨城）2039年10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
10/9 00:00	46.6	↓-2.2
10/9 00:10	44.6	↓-2.0
10/9 00:20	42.8	↓-1.8
10/9 00:30	41.2	↓-1.6
10/9 00:40	39.8	↓-1.4
10/9 00:50	38.7	↓-1.1
10/9 01:00	37.7	↓-1.0
10/9 01:10	37.0	↓-0.7
10/9 01:20	36.5	↓-0.5
10/9 01:30	36.3	↓-0.2	干潮
10/9 01:40	36.2	↓-0.1
10/9 01:50	36.4	↑0.2
10/9 02:00	36.7	↑0.3
10/9 02:10	37.3	↑0.6
10/9 02:20	38.1	↑0.8
10/9 02:30	39.0	↑0.9
10/9 02:40	40.1	↑1.1
10/9 02:50	41.4	↑1.3
10/9 03:00	42.9	↑1.5
10/9 03:10	44.5	↑1.6
10/9 03:20	46.2	↑1.7
10/9 03:30	48.1	↑1.9
10/9 03:40	50.1	↑2.0
10/9 03:50	52.2	↑2.1
10/9 04:00	54.4	↑2.2
10/9 04:10	56.6	↑2.2
10/9 04:20	59.0	↑2.4
10/9 04:30	61.4	↑2.4
10/9 04:40	63.8	↑2.4
10/9 04:50	66.3	↑2.5
10/9 05:00	68.8	↑2.5
10/9 05:10	71.3	↑2.5
10/9 05:20	73.8	↑2.5
10/9 05:30	76.3	↑2.5
10/9 05:40	78.8	↑2.5
10/9 05:50	81.2	↑2.4
10/9 06:00	83.6	↑2.4
10/9 06:10	85.9	↑2.3
10/9 06:20	88.2	↑2.3
10/9 06:30	90.4	↑2.2
10/9 06:40	92.5	↑2.1
10/9 06:50	94.5	↑2.0
10/9 07:00	96.4	↑1.9
10/9 07:10	98.2	↑1.8
10/9 07:20	99.8	↑1.6
10/9 07:30	101.3	↑1.5
10/9 07:40	102.7	↑1.4
10/9 07:50	104.0	↑1.3
10/9 08:00	105.0	↑1.0
10/9 08:10	106.0	↑1.0
10/9 08:20	106.8	↑0.8
10/9 08:30	107.4	↑0.6
10/9 08:40	107.9	↑0.5
10/9 08:50	108.2	↑0.3
10/9 09:00	108.4	↑0.2	満潮
10/9 09:10	108.4	0	満潮
10/9 09:20	108.3	↓-0.1
10/9 09:30	108.1	↓-0.2
10/9 09:40	107.8	↓-0.3
10/9 09:50	107.4	↓-0.4
10/9 10:00	106.9	↓-0.5
10/9 10:10	106.3	↓-0.6
10/9 10:20	105.6	↓-0.7
10/9 10:30	104.9	↓-0.7
10/9 10:40	104.2	↓-0.7
10/9 10:50	103.4	↓-0.8
10/9 11:00	102.6	↓-0.8
10/9 11:10	101.8	↓-0.8
10/9 11:20	101.1	↓-0.7
10/9 11:30	100.3	↓-0.8
10/9 11:40	99.6	↓-0.7
10/9 11:50	99.0	↓-0.6
10/9 12:00	98.4	↓-0.6
10/9 12:10	97.9	↓-0.5
10/9 12:20	97.5	↓-0.4
10/9 12:30	97.2	↓-0.3
10/9 12:40	96.9	↓-0.3
10/9 12:50	96.8	↓-0.1	干潮
10/9 13:00	96.8	0
10/9 13:10	96.8	0
10/9 13:20	97.0	↑0.2
10/9 13:30	97.3	↑0.3
10/9 13:40	97.7	↑0.4
10/9 13:50	98.1	↑0.4
10/9 14:00	98.7	↑0.6
10/9 14:10	99.3	↑0.6
10/9 14:20	100.1	↑0.8
10/9 14:30	100.9	↑0.8
10/9 14:40	101.7	↑0.8
10/9 14:50	102.7	↑1.0
10/9 15:00	103.7	↑1.0
10/9 15:10	104.7	↑1.0
10/9 15:20	105.7	↑1.0
10/9 15:30	106.8	↑1.1
10/9 15:40	107.9	↑1.1
10/9 15:50	109.1	↑1.2
10/9 16:00	110.2	↑1.1
10/9 16:10	111.3	↑1.1
10/9 16:20	112.4	↑1.1
10/9 16:30	113.4	↑1.0
10/9 16:40	114.5	↑1.1
10/9 16:50	115.5	↑1.0
10/9 17:00	116.4	↑0.9
10/9 17:10	117.3	↑0.9
10/9 17:20	118.1	↑0.8
10/9 17:30	118.9	↑0.8
10/9 17:40	119.5	↑0.6
10/9 17:50	120.1	↑0.6
10/9 18:00	120.6	↑0.5
10/9 18:10	121.0	↑0.4
10/9 18:20	121.3	↑0.3
10/9 18:30	121.4	↑0.1	満潮
10/9 18:40	121.5	↑0.1
10/9 18:50	121.4	↓-0.1
10/9 19:00	121.2	↓-0.2
10/9 19:10	120.8	↓-0.4
10/9 19:20	120.3	↓-0.5
10/9 19:30	119.6	↓-0.7
10/9 19:40	118.8	↓-0.8
10/9 19:50	117.9	↓-0.9
10/9 20:00	116.7	↓-1.2
10/9 20:10	115.5	↓-1.2
10/9 20:20	114.0	↓-1.5
10/9 20:30	112.4	↓-1.6
10/9 20:40	110.7	↓-1.7
10/9 20:50	108.8	↓-1.9
10/9 21:00	106.7	↓-2.1
10/9 21:10	104.6	↓-2.1
10/9 21:20	102.3	↓-2.3
10/9 21:30	99.8	↓-2.5
10/9 21:40	97.3	↓-2.5
10/9 21:50	94.6	↓-2.7
10/9 22:00	91.9	↓-2.7
10/9 22:10	89.1	↓-2.8
10/9 22:20	86.3	↓-2.8
10/9 22:30	83.4	↓-2.9
10/9 22:40	80.5	↓-2.9
10/9 22:50	77.5	↓-3.0	最大潮位差
10/9 23:00	74.6	↓-2.9
10/9 23:10	71.7	↓-2.9
10/9 23:20	68.9	↓-2.8
10/9 23:30	66.1	↓-2.8
10/9 23:40	63.4	↓-2.7
10/9 23:50	60.7	↓-2.7