20 (火)	07:08	00:40	19:38	13:25
	110cm	41cm	93cm	39cm
中潮 出 06:21 入 17:24 出 22:39 入 09:05

那珂湊（茨城）2052年02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
2/20 00:00	42.4	↓-1.0
2/20 00:10	41.6	↓-0.8
2/20 00:20	41.0	↓-0.6
2/20 00:30	40.7	↓-0.3	干潮
2/20 00:40	40.6	↓-0.1	干潮
2/20 00:50	40.8	↑0.2
2/20 01:00	41.1	↑0.3
2/20 01:10	41.7	↑0.6
2/20 01:20	42.6	↑0.9
2/20 01:30	43.6	↑1.0
2/20 01:40	44.8	↑1.2
2/20 01:50	46.2	↑1.4
2/20 02:00	47.8	↑1.6
2/20 02:10	49.6	↑1.8
2/20 02:20	51.6	↑2.0
2/20 02:30	53.6	↑2.0
2/20 02:40	55.9	↑2.3
2/20 02:50	58.2	↑2.3
2/20 03:00	60.6	↑2.4
2/20 03:10	63.2	↑2.6
2/20 03:20	65.8	↑2.6
2/20 03:30	68.4	↑2.6
2/20 03:40	71.1	↑2.7
2/20 03:50	73.8	↑2.7
2/20 04:00	76.6	↑2.8
2/20 04:10	79.3	↑2.7
2/20 04:20	82.0	↑2.7
2/20 04:30	84.7	↑2.7
2/20 04:40	87.3	↑2.6
2/20 04:50	89.8	↑2.5
2/20 05:00	92.3	↑2.5
2/20 05:10	94.6	↑2.3
2/20 05:20	96.9	↑2.3
2/20 05:30	99.0	↑2.1
2/20 05:40	100.9	↑1.9
2/20 05:50	102.7	↑1.8
2/20 06:00	104.3	↑1.6
2/20 06:10	105.7	↑1.4
2/20 06:20	106.9	↑1.2
2/20 06:30	107.8	↑0.9
2/20 06:40	108.6	↑0.8
2/20 06:50	109.1	↑0.5
2/20 07:00	109.4	↑0.3	満潮
2/20 07:10	109.4	0
2/20 07:20	109.2	↓-0.2
2/20 07:30	108.8	↓-0.4
2/20 07:40	108.1	↓-0.7
2/20 07:50	107.1	↓-1.0
2/20 08:00	106.0	↓-1.1
2/20 08:10	104.5	↓-1.5
2/20 08:20	102.9	↓-1.6
2/20 08:30	101.1	↓-1.8
2/20 08:40	99.0	↓-2.1
2/20 08:50	96.8	↓-2.2
2/20 09:00	94.4	↓-2.4
2/20 09:10	91.8	↓-2.6
2/20 09:20	89.1	↓-2.7
2/20 09:30	86.3	↓-2.8
2/20 09:40	83.5	↓-2.8
2/20 09:50	80.5	↓-3.0	最大潮位差
2/20 10:00	77.5	↓-3.0	最大潮位差
2/20 10:10	74.5	↓-3.0	最大潮位差
2/20 10:20	71.5	↓-3.0	最大潮位差
2/20 10:30	68.5	↓-3.0	最大潮位差
2/20 10:40	65.6	↓-2.9
2/20 10:50	62.7	↓-2.9
2/20 11:00	59.9	↓-2.8
2/20 11:10	57.2	↓-2.7
2/20 11:20	54.7	↓-2.5
2/20 11:30	52.2	↓-2.5
2/20 11:40	50.0	↓-2.2
2/20 11:50	47.9	↓-2.1
2/20 12:00	46.0	↓-1.9
2/20 12:10	44.3	↓-1.7
2/20 12:20	42.8	↓-1.5
2/20 12:30	41.5	↓-1.3
2/20 12:40	40.5	↓-1.0
2/20 12:50	39.6	↓-0.9
2/20 13:00	39.0	↓-0.6
2/20 13:10	38.6	↓-0.4
2/20 13:20	38.4	↓-0.2	干潮
2/20 13:30	38.4	0
2/20 13:40	38.6	↑0.2
2/20 13:50	39.0	↑0.4
2/20 14:00	39.6	↑0.6
2/20 14:10	40.4	↑0.8
2/20 14:20	41.4	↑1.0
2/20 14:30	42.6	↑1.2
2/20 14:40	43.9	↑1.3
2/20 14:50	45.3	↑1.4
2/20 15:00	46.9	↑1.6
2/20 15:10	48.6	↑1.7
2/20 15:20	50.4	↑1.8
2/20 15:30	52.4	↑2.0
2/20 15:40	54.4	↑2.0
2/20 15:50	56.4	↑2.0
2/20 16:00	58.6	↑2.2
2/20 16:10	60.8	↑2.2
2/20 16:20	63.0	↑2.2
2/20 16:30	65.2	↑2.2
2/20 16:40	67.4	↑2.2
2/20 16:50	69.6	↑2.2
2/20 17:00	71.8	↑2.2
2/20 17:10	74.0	↑2.2
2/20 17:20	76.1	↑2.1
2/20 17:30	78.1	↑2.0
2/20 17:40	80.0	↑1.9
2/20 17:50	81.8	↑1.8
2/20 18:00	83.6	↑1.8
2/20 18:10	85.2	↑1.6
2/20 18:20	86.6	↑1.4
2/20 18:30	88.0	↑1.4
2/20 18:40	89.1	↑1.1
2/20 18:50	90.1	↑1.0
2/20 19:00	90.9	↑0.8
2/20 19:10	91.6	↑0.7
2/20 19:20	92.0	↑0.4
2/20 19:30	92.2	↑0.2	満潮
2/20 19:40	92.3	↑0.1
2/20 19:50	92.1	↓-0.2
2/20 20:00	91.8	↓-0.3
2/20 20:10	91.2	↓-0.6
2/20 20:20	90.5	↓-0.7
2/20 20:30	89.6	↓-0.9
2/20 20:40	88.5	↓-1.1
2/20 20:50	87.2	↓-1.3
2/20 21:00	85.8	↓-1.4
2/20 21:10	84.2	↓-1.6
2/20 21:20	82.5	↓-1.7
2/20 21:30	80.7	↓-1.8
2/20 21:40	78.8	↓-1.9
2/20 21:50	76.9	↓-1.9
2/20 22:00	74.8	↓-2.1
2/20 22:10	72.8	↓-2.0
2/20 22:20	70.7	↓-2.1
2/20 22:30	68.6	↓-2.1
2/20 22:40	66.5	↓-2.1
2/20 22:50	64.5	↓-2.0
2/20 23:00	62.5	↓-2.0
2/20 23:10	60.7	↓-1.8
2/20 23:20	58.9	↓-1.8
2/20 23:30	57.2	↓-1.7
2/20 23:40	55.7	↓-1.5
2/20 23:50	54.3	↓-1.4