13 (火)	09:57	03:14	-	17:52
	105cm	72cm	-	33cm
長潮 出 06:28 入 17:18 出 11:49 入 01:24

那珂湊（茨城）2057年02月13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
2/13 00:00	79.2	↓-0.2
2/13 00:10	78.8	↓-0.4
2/13 00:20	78.4	↓-0.4
2/13 00:30	78.0	↓-0.4
2/13 00:40	77.5	↓-0.5
2/13 00:50	77.0	↓-0.5
2/13 01:00	76.5	↓-0.5
2/13 01:10	75.9	↓-0.6
2/13 01:20	75.4	↓-0.5
2/13 01:30	74.9	↓-0.5
2/13 01:40	74.4	↓-0.5
2/13 01:50	73.9	↓-0.5
2/13 02:00	73.5	↓-0.4
2/13 02:10	73.1	↓-0.4
2/13 02:20	72.7	↓-0.4
2/13 02:30	72.4	↓-0.3
2/13 02:40	72.2	↓-0.2
2/13 02:50	72.0	↓-0.2
2/13 03:00	71.9	↓-0.1
2/13 03:10	71.8	↓-0.1	干潮
2/13 03:20	71.8	0
2/13 03:30	71.9	↑0.1
2/13 03:40	72.1	↑0.2
2/13 03:50	72.3	↑0.2
2/13 04:00	72.6	↑0.3
2/13 04:10	73.0	↑0.4
2/13 04:20	73.5	↑0.5
2/13 04:30	74.0	↑0.5
2/13 04:40	74.6	↑0.6
2/13 04:50	75.2	↑0.6
2/13 05:00	76.0	↑0.8
2/13 05:10	76.8	↑0.8
2/13 05:20	77.7	↑0.9
2/13 05:30	78.6	↑0.9
2/13 05:40	79.6	↑1.0
2/13 05:50	80.6	↑1.0
2/13 06:00	81.7	↑1.1
2/13 06:10	82.9	↑1.2
2/13 06:20	84.1	↑1.2
2/13 06:30	85.3	↑1.2
2/13 06:40	86.6	↑1.3
2/13 06:50	87.8	↑1.2
2/13 07:00	89.1	↑1.3
2/13 07:10	90.4	↑1.3
2/13 07:20	91.8	↑1.4
2/13 07:30	93.1	↑1.3
2/13 07:40	94.3	↑1.2
2/13 07:50	95.6	↑1.3
2/13 08:00	96.8	↑1.2
2/13 08:10	98.0	↑1.2
2/13 08:20	99.1	↑1.1
2/13 08:30	100.1	↑1.0
2/13 08:40	101.1	↑1.0
2/13 08:50	102.0	↑0.9
2/13 09:00	102.8	↑0.8
2/13 09:10	103.5	↑0.7
2/13 09:20	104.0	↑0.5
2/13 09:30	104.4	↑0.4
2/13 09:40	104.7	↑0.3
2/13 09:50	104.9	↑0.2	満潮
2/13 10:00	104.9	0
2/13 10:10	104.8	↓-0.1
2/13 10:20	104.5	↓-0.3
2/13 10:30	104.1	↓-0.4
2/13 10:40	103.5	↓-0.6
2/13 10:50	102.7	↓-0.8
2/13 11:00	101.8	↓-0.9
2/13 11:10	100.7	↓-1.1
2/13 11:20	99.5	↓-1.2
2/13 11:30	98.1	↓-1.4
2/13 11:40	96.6	↓-1.5
2/13 11:50	95.0	↓-1.6
2/13 12:00	93.2	↓-1.8
2/13 12:10	91.3	↓-1.9
2/13 12:20	89.3	↓-2.0
2/13 12:30	87.3	↓-2.0
2/13 12:40	85.1	↓-2.2
2/13 12:50	82.9	↓-2.2
2/13 13:00	80.6	↓-2.3
2/13 13:10	78.2	↓-2.4
2/13 13:20	75.8	↓-2.4
2/13 13:30	73.4	↓-2.4
2/13 13:40	70.9	↓-2.5	最大潮位差
2/13 13:50	68.5	↓-2.4
2/13 14:00	66.1	↓-2.4
2/13 14:10	63.7	↓-2.4
2/13 14:20	61.3	↓-2.4
2/13 14:30	58.9	↓-2.4
2/13 14:40	56.6	↓-2.3
2/13 14:50	54.4	↓-2.2
2/13 15:00	52.3	↓-2.1
2/13 15:10	50.2	↓-2.1
2/13 15:20	48.2	↓-2.0
2/13 15:30	46.3	↓-1.9
2/13 15:40	44.4	↓-1.9
2/13 15:50	42.7	↓-1.7
2/13 16:00	41.2	↓-1.5
2/13 16:10	39.7	↓-1.5
2/13 16:20	38.3	↓-1.4
2/13 16:30	37.1	↓-1.2
2/13 16:40	36.0	↓-1.1
2/13 16:50	35.1	↓-0.9
2/13 17:00	34.2	↓-0.9
2/13 17:10	33.6	↓-0.6
2/13 17:20	33.0	↓-0.6
2/13 17:30	32.7	↓-0.3
2/13 17:40	32.4	↓-0.3
2/13 17:50	32.3	↓-0.1	干潮
2/13 18:00	32.4	↑0.1
2/13 18:10	32.6	↑0.2
2/13 18:20	33.0	↑0.4
2/13 18:30	33.5	↑0.5
2/13 18:40	34.1	↑0.6
2/13 18:50	34.9	↑0.8
2/13 19:00	35.8	↑0.9
2/13 19:10	36.9	↑1.1
2/13 19:20	38.0	↑1.1
2/13 19:30	39.3	↑1.3
2/13 19:40	40.7	↑1.4
2/13 19:50	42.2	↑1.5
2/13 20:00	43.8	↑1.6
2/13 20:10	45.5	↑1.7
2/13 20:20	47.2	↑1.7
2/13 20:30	49.0	↑1.8
2/13 20:40	50.9	↑1.9
2/13 20:50	52.7	↑1.8
2/13 21:00	54.7	↑2.0
2/13 21:10	56.6	↑1.9
2/13 21:20	58.5	↑1.9
2/13 21:30	60.4	↑1.9
2/13 21:40	62.3	↑1.9
2/13 21:50	64.2	↑1.9
2/13 22:00	66.0	↑1.8
2/13 22:10	67.7	↑1.7
2/13 22:20	69.4	↑1.7
2/13 22:30	71.1	↑1.7
2/13 22:40	72.6	↑1.5
2/13 22:50	74.1	↑1.5
2/13 23:00	75.4	↑1.3
2/13 23:10	76.7	↑1.3
2/13 23:20	77.9	↑1.2
2/13 23:30	78.9	↑1.0
2/13 23:40	79.9	↑1.0
2/13 23:50	80.8	↑0.9