20 (木)	09:12	02:07	19:30	13:25
	107cm	46cm	123cm	92cm
小潮 出 05:25 入 17:39 出 22:05 入 12:05

那珂湊（茨城）2057年09月20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
9/20 00:00	61.0	↓-2.5
9/20 00:10	58.7	↓-2.3
9/20 00:20	56.5	↓-2.2
9/20 00:30	54.5	↓-2.0
9/20 00:40	52.7	↓-1.8
9/20 00:50	51.1	↓-1.6
9/20 01:00	49.6	↓-1.5
9/20 01:10	48.4	↓-1.2
9/20 01:20	47.4	↓-1.0
9/20 01:30	46.6	↓-0.8
9/20 01:40	45.9	↓-0.7
9/20 01:50	45.5	↓-0.4
9/20 02:00	45.3	↓-0.2	干潮
9/20 02:10	45.3	0
9/20 02:20	45.5	↑0.2
9/20 02:30	45.8	↑0.3
9/20 02:40	46.4	↑0.6
9/20 02:50	47.1	↑0.7
9/20 03:00	48.0	↑0.9
9/20 03:10	49.0	↑1.0
9/20 03:20	50.2	↑1.2
9/20 03:30	51.6	↑1.4
9/20 03:40	53.0	↑1.4
9/20 03:50	54.6	↑1.6
9/20 04:00	56.4	↑1.8
9/20 04:10	58.2	↑1.8
9/20 04:20	60.1	↑1.9
9/20 04:30	62.1	↑2.0
9/20 04:40	64.2	↑2.1
9/20 04:50	66.3	↑2.1
9/20 05:00	68.5	↑2.2
9/20 05:10	70.7	↑2.2
9/20 05:20	72.9	↑2.2
9/20 05:30	75.2	↑2.3
9/20 05:40	77.5	↑2.3
9/20 05:50	79.7	↑2.2
9/20 06:00	82.0	↑2.3
9/20 06:10	84.2	↑2.2
9/20 06:20	86.3	↑2.1
9/20 06:30	88.4	↑2.1
9/20 06:40	90.5	↑2.1
9/20 06:50	92.4	↑1.9
9/20 07:00	94.3	↑1.9
9/20 07:10	96.1	↑1.8
9/20 07:20	97.7	↑1.6
9/20 07:30	99.3	↑1.6
9/20 07:40	100.7	↑1.4
9/20 07:50	102.0	↑1.3
9/20 08:00	103.1	↑1.1
9/20 08:10	104.1	↑1.0
9/20 08:20	105.0	↑0.9
9/20 08:30	105.7	↑0.7
9/20 08:40	106.2	↑0.5
9/20 08:50	106.6	↑0.4
9/20 09:00	106.8	↑0.2
9/20 09:10	106.9	↑0.1	満潮
9/20 09:20	106.9	0
9/20 09:30	106.7	↓-0.2
9/20 09:40	106.4	↓-0.3
9/20 09:50	105.9	↓-0.5
9/20 10:00	105.4	↓-0.5
9/20 10:10	104.7	↓-0.7
9/20 10:20	104.0	↓-0.7
9/20 10:30	103.2	↓-0.8
9/20 10:40	102.4	↓-0.8
9/20 10:50	101.5	↓-0.9
9/20 11:00	100.5	↓-1.0
9/20 11:10	99.6	↓-0.9
9/20 11:20	98.6	↓-1.0
9/20 11:30	97.7	↓-0.9
9/20 11:40	96.8	↓-0.9
9/20 11:50	95.9	↓-0.9
9/20 12:00	95.1	↓-0.8
9/20 12:10	94.3	↓-0.8
9/20 12:20	93.6	↓-0.7
9/20 12:30	93.0	↓-0.6
9/20 12:40	92.5	↓-0.5
9/20 12:50	92.1	↓-0.4
9/20 13:00	91.8	↓-0.3
9/20 13:10	91.6	↓-0.2
9/20 13:20	91.5	↓-0.1	干潮
9/20 13:30	91.5	0
9/20 13:40	91.6	↑0.1
9/20 13:50	91.8	↑0.2
9/20 14:00	92.2	↑0.4
9/20 14:10	92.6	↑0.4
9/20 14:20	93.2	↑0.6
9/20 14:30	93.8	↑0.6
9/20 14:40	94.6	↑0.8
9/20 14:50	95.4	↑0.8
9/20 15:00	96.3	↑0.9
9/20 15:10	97.3	↑1.0
9/20 15:20	98.3	↑1.0
9/20 15:30	99.4	↑1.1
9/20 15:40	100.6	↑1.2
9/20 15:50	101.8	↑1.2
9/20 16:00	103.0	↑1.2
9/20 16:10	104.3	↑1.3
9/20 16:20	105.6	↑1.3
9/20 16:30	106.9	↑1.3
9/20 16:40	108.2	↑1.3
9/20 16:50	109.5	↑1.3
9/20 17:00	110.8	↑1.3
9/20 17:10	112.0	↑1.2
9/20 17:20	113.3	↑1.3
9/20 17:30	114.5	↑1.2
9/20 17:40	115.6	↑1.1
9/20 17:50	116.7	↑1.1
9/20 18:00	117.7	↑1.0
9/20 18:10	118.7	↑1.0
9/20 18:20	119.6	↑0.9
9/20 18:30	120.3	↑0.7
9/20 18:40	121.0	↑0.7
9/20 18:50	121.6	↑0.6
9/20 19:00	122.0	↑0.4
9/20 19:10	122.3	↑0.3
9/20 19:20	122.5	↑0.2	満潮
9/20 19:30	122.6	↑0.1	満潮
9/20 19:40	122.5	↓-0.1
9/20 19:50	122.3	↓-0.2
9/20 20:00	121.8	↓-0.5
9/20 20:10	121.3	↓-0.5
9/20 20:20	120.6	↓-0.7
9/20 20:30	119.7	↓-0.9
9/20 20:40	118.6	↓-1.1
9/20 20:50	117.4	↓-1.2
9/20 21:00	116.0	↓-1.4
9/20 21:10	114.4	↓-1.6
9/20 21:20	112.7	↓-1.7
9/20 21:30	110.8	↓-1.9
9/20 21:40	108.8	↓-2.0
9/20 21:50	106.7	↓-2.1
9/20 22:00	104.4	↓-2.3
9/20 22:10	102.1	↓-2.3
9/20 22:20	99.6	↓-2.5
9/20 22:30	97.0	↓-2.6
9/20 22:40	94.4	↓-2.6
9/20 22:50	91.7	↓-2.7
9/20 23:00	89.0	↓-2.7
9/20 23:10	86.2	↓-2.8	最大潮位差
9/20 23:20	83.5	↓-2.7
9/20 23:30	80.7	↓-2.8	最大潮位差
9/20 23:40	78.0	↓-2.7
9/20 23:50	75.3	↓-2.7